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Even the most sophisticated wheel and suspension technology can't work without the right tires - because it's them to make first contact with rocks, roots and loose gravel. And when they are of the new 27.5" x 3" format and ridden with appropriately low pressure, this contact becomes an intimate one. Meaning: the tire's studs dig into every tiny crevice on the trail and therefore ensure maximum grip in corners and lots of traction. Thus improving braking, steering, acceleration. And already standard in all new all-mountain e-MTBs from STEVENS.
500 Wh Battery
This will decide success or failure of e-mobility. That's why STEVENS uses batteries with a huge 500 Watt-hour capacity in all its top-notch pedelecs for up to 215 km of range (according to the manufacturer, please refer to the Bosch range calculator for more exact results). This is possible even without a weight penalty: Compared to the old PowerPack 400, the new Bosch PowerPack 500 is just 100 grams heavier. This huge "fuel tank" is our premier recommendation for pedelec riders who don't shy away from the hilliest of itineraries.
Optimum seating level for best drivetrain efficiency. Push the button: saddle down for best clearance on technical descents. Push the button: saddle up … this could go on forever - and on some technical trails the dropper post remote will be actuated more often than the front derailleur shift lever. Experts for fun and safety alike agree: Very rarely has an innovation meant so many convincing advantages and so little disadvantages like a dropper post with infinitely adjustable seat height.
Aero optimized Brakes
In collaboration with the brake specialists at TRP our engineers hid the brakes on STEVENS time trial and triathlon bikes from head wind - at the front on the backside of the fork, at the rear behind the bottom bracket. This way, when going for your personal best, you are only slowed down when you do it on purpose.
When speed is the most important goal, sometimes a frame has to see the inside of a wind tunnel - and eventually come back to Hamburg with a few more "speedy" features. This means advantaged for the riders of our Super Trofeo in time trials and - with the Volt - also in triathlons.
These number are the names of different aluminium alloys a frame is made from. Alloying is necessary to increase aluminium's toughness and hardness that in its raw state would be to soft and weak. From both alloys stiff and long-lasting STEVENS frames can be made. 7005 uses zinc as the next most important ingredient, 6061 uses magnesium and silicon as main additives.
Anodized Frames (Anodized finish)
In an electrically charged dipping bath high-quality aluminium frames are covered with a hard, smooth, even surface that looks especially classy in STEVENS Anodized Black. Therefore neither a paintjob nor powder coating is necessary - saving about 200 grams of frame weight.
Those who are not born pro racers or like to ride hills a lot are best served with a compact crank featuring a 50/34 teeth gear combination. The big chain ring offers enough speed potential even with a tailwind. Uphill your two-piston machine won't run out of fuel when hitting a 10% grade. A tip for lovers of Alpine passes: A 11 to 32T cassette, mounted standard on some STEVENS models will make conquering 1,000 vertical meters (3281 ft) with an easy cadence a piece of cake.
Semi Compact Drive
Shimano's new standard is the optimum compromise of speed and climbing abilities with a 52/36T chain ring combination. Pefect when a 11 to 32T cassette is mounted at the rear wheel (e.g. with the new STEVENS Arcalis Disc), then mid-range mountains or even Alpine passes are no problem anymore. Instead ambitioned cyclists turn their cranks easily and save energy for the final townline sprint with friends to make speeds up to 60kph (40mph) possible.
53 and 39 teeth. Classic pro rider set-up. Made for long, mostly flat stages that are ridden with high tempo. The right choice for the fittest athletes – no matter if road race or time trial.
Boost Rear Axle Spacing
Since model year 2016 the rear stays of all STEVENS fullies adhere to the new "Boost" or "Plus" standard with 148 mm axle spacing. And there are good reasons for that. Rear wheel stiffness increases by 20 % which is especially beneficial in large 29" wheels. And there is more space for voluminous studded tires to give you more control and fun an the trail.
What is right for the rear wheel is even more important at the front wheel - because steering precision matters. This is why STEVENS uses suspension forks and hubs with extra wide axle spacing for all its fullies, as well as for the trail rocket Sonora and the alloy-hardtails Colorado and Sentiero. These 110mm of axle spacing are called "Boost" or "Plus" and stand for lots of added lateral stiffness plus space for extra wide studded tires.
For the most preciuos STEVENS pedelecs BOSCH goes the full nine yards and presents the Nyon Display - the world's first all-in-one on-board computer for bikes: e-drive activation and monitoring, GPS, fitness coach … combined with a specially designed smartphone app plus online portal a lot more is possible. If it's planning your route on your PC at home or managing your fitness data, the do-it-all Nyon is designed to statisfy any demand in information a cyclist can ever have.
Bosch PowerTube Battery
Integration is the magic word: In STEVENS Pedelecs with the PT5 distinction the PowerTube battery is well protected inside the large down tube and provides a full 500 Watt hours for long and very long outings. Thanks to its concealed charging port it can be charged while remaining on the bike. And the large volume of the downtube additionally increases stiffness, safety and steering precision.
For speed pedelecs it's mandatory, here it's a welcome bonus: When actuating the brake lever, the brake light will flash and warn road users behind.
Brake Light and Illuminated License Plate
For speed pedelecs it's required by law - and it enhances visibility. This is why on the E-Triton 45 you'll find an illuminated license plate as well as a brake light that, like in a car, will flash when the brake lever is actuated. Better safe than sorry.
The whole set of handlebar, stem, grips, brake and shift levers and any accessory attached to the handlebar such as bell or trip computer are called the cockpit.
Alfine 11 Di2 + Bosch
The combination of Shimano Alfine Di2 gear hub and e-shift function of the Bosch electric motor massively reduce the rider's workload if needed. It will automatically change gears and decrease motor power while shifting. When shifting manually the display will suggest the right gear. And when stopping on a red light the drivetrain will automatically shift to a pre-selected gear.
Um die elektronischen Schaltkomponenten noch besser zu integrieren, befindet sich im Tretlagerbereich der STEVENS Carbon-Fullys eine Öffnung, die Montage und Wartung des zugehörigen Akkus zur leichten Übung macht.
Electronic shifting is already well established in road bikes as well as in mountain bikes next to classic mechanical systems. Impressively fast and reliable gear changes and minimum maintenance pay their dividends not only at the Tour de France, in cyclocross or on the Cross-Country World Cup circuit. That's why STEVENS road bike and MTB frames are "Di2"-ready, meaning they are prepared for an elegant integration of batteries and electric cables (instead of usual wire cables). Even for the classy Alfine gear hub Shimano offers an electronic version.
No other shifting system changes gears as fast and reliable as the electronically actuated Di2 option for Shimano's XTR and XT group. From fine tuning to preferred shifting speed all adjustments can be done via the handlebar display - in case of XT even with a smart phone app and Bluetooth link.
All STEVENS full suspension bikes and hardtails with rear thru axle benefit from the stiffness of Shimano's E-thru-standard. This includes a direct mount derailleur hanger with integrated thread for the thru axle. The derailleur is mounted further backwards than with conventional quick release systems - which simplifies wheel removal and also increases shifting precision.
Direct Mount Front Derailleur
A front derailleur cannot be fixed more directly and stiffer than one with an integrated Direct Mount. That's why STEVENS's engineers opted for this solution on all full-suspension bikes and high-quality hardtails. So their riders are rewarded with utmost shifting precision.
Here two world market leaders collaborated to help pedelec riders have more fun. Via the eShift interface Bosch motor and Di-2 shifting work like magic. Instead of waiting for the command from the rider they automatically shift to the optimal gear smoothly and fast as lightning - always to keep the pre-selected preferred cadence. And when stopping on a red light the system will automatically shift to a pre-selected gear.
What is still an issue of debate among pros, riders of a STEVENS Comet, Ventoux or Izoard Pro DISC and all cyclocross disc bikes can already benefit from: Hydraulic disc brakes offering perfect modulation with minimal use of hand force also - or especially - in the wet due to their always constant braking power. This is beneficial in traffic just as it is on a fast and furious descent from a pass in the Dolomites. Or on a cyclocross race track where it's all about staying fast as long as possible. By using the Flatmount standard in all STEVENS disc road bikes and cyclocross bikes (except for the Tabor) we can position the callipers closer to the frame and more elegantly than before. This saves weight without sacrificing performance and it looks so much better.
We keep the cable routing on our bikes as versatile as possible so you can ride your bike like you want to. There are wide and therefore easy to reach cable ports in the frame to insert shift or brake sleeves, Di2 cables or even no sleeves at all - there are the appropriate cover plugs for all of this.
This parallelogram seat post provides noticeable spinal relief when riding on rough terrain, because it sensitively responds to smallest bumps in the road. It is adjusted to rider weight using different elastomer inserts.
Hardtail and Fully (Full Suspension-) Mountainbike
A Hardtail is a mountainbike with a suspension fork but rigid ("hard") rear triangle ("tail"). A full suspension mountain bike ("fully") also uses suspension in the rear triangle - the part of the bike behind seat tube and bottom bracket. Hits from uneven terrain are levelled by a damper (mostly called shock).
Rear Triangle Bearing
Designing products that fullfil STEVENS engineers' demand in high-quality has lead to an important conclusion: If an MTB's chassis is supposed to provide precise response, high rear triangle stiffness and and a long life span then it must be equipped with high-quality, multiple-sealed roller bearings of load-specific dimensions - said and done!
High Modulus Carbon Fibers
Only the very best materials are used for the highest quality STEVENS carbon frames - so called high modulus carbon fibres. They offer a perfect combination of maximum toughness and targeted elasticity. This way they provide maximum lateral stiffness for best forward drive and a high amount of comfort. Result: incredibly light and enormously stiff frames.
There is no more reliable brake system than hydraulic disc brakes - that is why we strongly advice everyone, who is riding their cross, trekking- or city bike 12 months a year to choose one of our models with the „DISC“ suffix. Brake power is easy to modulate and does not fade a bit in the wet. Also the brakes are almost maintenance-free. And your local STEVENS dealer will gladly explain to you what you need to take care of when removing and re-installing a wheel
Using water or oil pressure aluminium tubes are transformed from their original round shape into their ideal shape determined by STEVENS engineers to perfectly withstand any load without any weight penalty. Riders of allround bikes and pedelecs will benefit from a better stability caused by hydroforming even when they are touring with heavy luggage.
In collaboration with pannier rack specialists Tubus and Racktime STEVENS' engineers have developed a dropout that also serves as an elegant pannier rack mount. It not only looks fantastic, it also ensures that forces caused by luggage or large amounts of groceries are evenly transmitted inot the frame - resulting in a more stable and safer design.
Even when you can't see the strut that connects the pannier rack to the fender - it is there. The strut runs below the fender and provides - in connection with the rack mounted to the fender - more stability and lateral stiffness.
The IQ-X head light range from Busch+Müller, thanks to their newly developed light technology, enables dynamo-powered head light to break the 100-lux barrier for the first time ever - and in addition illuminates a large area in front of the bike very evenly. The smaller, more elegant XS version still makes 70 Lux. But the record goes to the IQ-X E head light with its 150 Lux (!) rivalling actual sun light as attached to the handlebar of our fast S-pedelec Triton 45.
Our World Cup and World Champions asked for it: To not lose any decisive seconds in a race we provide their Super Prestige cross bikes with a clever chain guide. It can be adjusted to different chain ring sizes - there is also a single-chain ring version available (standard on the Super Prestige Force).
Who wants to be fast does not need to suffer – especially not when their STEVENS Carbon road bike is equipped with a Scorpo Carbon SL Comfort Seatpost which filters annoying road buzz. Its diameter of 27.2mm only and dedicated fibre orientation enable better flex without adding weight or loosing stability. By the way: the post can also be retrofitted.
The seat tube tapers from top to bottom. At the top it fits a slim 27.2mm seatpost that offers some flex and therefore increases comfort especially when riding over rough ground. At the bottom the large diameter nicley flows into the bottom bracket shell and downtube to provide great stiffness and drivetrain efficiency.
There are situations when no suspension neither front or rear is required. When you are hammering uphill out of the saddle, when you sprint for the finish line in a marathon … then you simply flick the lockout switch to block the compression stroke. And when you read the word "remote" on the spec list, this means you can conveniently use a button at the handlebar to lock your suspension.
A lowrider is a pannier rack to fix bags to the fork legs, resulting in a lower (hence the name) center of gravity than with a rack that straddles the front wheel. Threaded eyelets for the fixing bolts can be found on almost all rigid STEVENS forks.
Monocoque Carbon Frames
Monocoque carbon frames are "baked" inside one single mold - this ensures a maximum in manufacturing precision, an elegant appearance (made "in one piece") and - given sufficient know-how from the engineers involved - superior technical qualities.
Mountain Bike Wheel Sizes - the STEVENS Philosophy
The bike has to fit the rider, not the other way round - following this philosophy we have been building bikes since 1991.
This is why we use different wheel sizes in our STEVENS mountain bikes depending on frame size and area of use. Basically we rely on 29" wheels. What are actually 28" wheels combined with large-volume tires make the 29" wheel size can clear obstacles more easily and offer better traction due to a larger contact patch than smaller-diameter tires. In 16in frames are matched to 27.5" wheels. Larger wheels don't fit the smaller frame's proportions well enough just as their riders' measurements and leverage of arms and legs - the front end would sit just too high. Smaller riders on a 29er would always sit a lot more upright than taller riders on an appropriately-sized frame. We transfer the idea of height-specific wheel size to our youth and children's mountain bike from 27.5” over 24” to 20”.
Pedelec Motor Types
Bosch Performance Line Speed
The Bosch motor for fast S-pedelecs – with 350 Watts of power and enormous 63 Newtonmeters of torque it will support you up to 45 kph. This is the best choice for long-distance commuting to and from outside city limits.
Bosch Performance Line CX
When Bosch adds "CX" to one of its motors, there's no holding back: 250 Watt and incredible 75 Newtonmeter of torque will push you forward no holds barred. Be it for every-day use, on extended tours or even on off-road trails – for this motor Bosch has trademarked the term „uphill flow“.
Bosch Performance Line Cruise
When it says "performance" on the outside, lots of power is inside: This power house delivers 250 Watts and 63 Nm (or 50 Nm when combined with a gear hub). For your pedelec this means a sufficient helping of thrust in any kind of situation – exactly what you have asked for.
Bosch Active Line Plus Cruise
The big 44-teeth chain ring makes it look like a conventional bicycle but hidden behind there are 250 Watts plus 50 Newtonmeters of torque to forcefully support your pedalling effort. With an Active Line Plus-motor from Bosch you will move forward smoothly – and almost completely silent.
Bosch Active Line Cruise
Active Line motors from Bosch do their work as inconspicuously as effectively: The big chain ring makes it look like a conventional bicycle the motor supports the power of your legs with 250 Watts continuous power and 40 Newtonmeters of torque – and remains remarkably silent doing so.
Shimano STEPS E8000
It's two things about this Shimano motor that win over mountain bikers: First its compact design, that enables the chainstays to be kept short - thus providing the desired agile handling. Then it's the motor management that when in "trail "mode seems to anticipate any of the rider's wishes before every pedal stroke and optimally support them with 250 Watts and 70 Nm of torque.
Shimano STEPS E6100
The new STEPS E6100 motor from Shimano possesses two qualities that are most appreciated when riding in the city or on pedelec tours: a compact, light-weight design, powerful yet silent support and a classy appearance thanks to the "regular" sized chain ring.
Pinion C1.12 Gear Box
Like its bigger sibling he legendary P1.18, the new 12-speed gear box from Pinion takes the place nowadays usually occupied by electric motors. And it gives you several reasons to keep using your muscle power to 100 %: Among them is a gear spread of 600 %. 12 gears that make sense and thanks to a housing made from magnesium, the box is 600 grams lighter than the top-of-the-line model.
Where there's normally a bottom bracket shell there is now a complete control center with a total of 18 tightly and evenly-stepped gears - always providing the perfect gear for any kind of situation. This little powerhouse – made in Germany – also guarantees perfect handling thanks to its optimum weight distribution.
This way to attach the brake caliper to the frame or fork has become the aknowledged standard. The brake caliper is supported by the threaded post it is mounted on (hence the name). The post is also an integral part of the frame and fork, respectively which makes the brake-frame-system a lot stiffer and more durable. Also found on STEVENS disc equipped road bikes.
Pressfit Bottom Bracket
A bottom bracket consisting of bearings that are pressed directly into the frame's bottom bracket shell, therefore fitting very tightly. This design allow the use of large diameter bottom bracket axles to increase stiffness and minimize friction. Maintenance-free for many years.
QR-12 Thru Axle f+r
It is especially important for disc brakes that ultra-lightweight road bikes are prepared to accommodate them in order to make the most of their advantages. So the forks and rear triangles of your disc road bikes are spec'd with extra-safe 12 mm thru-axles.
"15" stands for the diameter in millimeters, "QR" for quick release. Combined they are the most useful method to fix the front wheel to the (suspension) fork. With convincing advantages: high stiffness, precise positioning of the brake disc and super-easy handling. So STEVENS specs almost all its mountain bikes and even high-quality trekking bikes, cross bikes and pedelecs with a thru-axle. Additionally, especially with 29" MTBs axle spacing is increased from 100 to 110 mm which makes the design even stiffer.
Diffferent purposes in different terrain require different ride properties. This is why every fully rear triangle receives a specific setup from STEVENS' engineers to meet the respective bike's requirement for optimum performance. Firm for minimum power loss in the marathon with lots of comfort for long distance riding with a linear characteristic curve and mind-soothing reserves for hard hits.
Even pro riders in the Tour de France already know that wider tires sometimes roll faster. And aren't it not those small back-roads with their sometimes questionable surfaces that are the most fun to ride? Those who often ride on roads with less than perfect pavement can prepare their road bike with up to 28 mm wide tires - and benefit from better comfort.
Those who are riding on rougher surfaces now can mount up to 47 mm wide tires to benefit from more comfort and flat protection that derive from their larger volume, and that can be ridden with lower pressure. Frame and fork are already prepared accordingly.
When you ride on roads with less than perfect surface, you can now mount up to 53 mm wide tires - and benefit from more comfort and flat protection that their larger volume brings with them and that can be ridden at a lower pressure. Frames and forks are already prepared to fit these wider tires.
A belt drive, as the name suggests, uses a drive belt instead of a chain to transfer power from the cranks to the rear wheel. Since the belt cannot be split like a chain the special STEVENS frame utilizes a splittable seat stay, but the advantages are convincing: lower weight, silent operation, almost endless longevity without any maintenance.
A handlebar that is bent so that its ends where the grips are attached are positioned higher and a little further back than its middle part where it connects the stem.
The electronic Rohloff E-14 sets a benchmark for e-bike shifting. Combined with the e-shift function of the Bosch motor it offers a unique, fast and faultless shifting performance: One push of a button - the motor will immediately reduce power and the Speedhub will change gears. Hold the button and the hub shifts all 14 gears in three-gear steps at a time. And when stopping on a red light it will automatically shift to a pre-selected gear.
There is no more reliable way to arrange 14 finely-stepped gears than with this hub from Rohloff, which is controlled by a twist grip. There are Speedhubs out there having run more than 100.000km. And there are thousands of everyday and long-distance riders who never ever want to use any other way of shifting again. Maintenance? Maybe one oil change per year - that's it.
STEVENS S-Lite Aluminium Fork
This is what modern rigid forks look like: The straight fork legs and fork crown are made in one piece - this reduced the number of welds and guarantees highest stiffness and steering precision. Full-size mudguards and a low-rider pannier rack can be attached just as easily as an elegant head light bracket. The QR-15 thru axle version can additionally be made more safe against theft with the optional Pitlock system. And still the STEVENS S-Lite aluminium forks lives up to its name when put on a scale.
The elevated positioning of the head light in front of the handlebar display provides an improved illumination of the road ahead of you, because the front tire won't cast a shadow. And this is good because on our speed pedelecs you'll be going faster than you were used to.
Optional Mudguard and Pannier Rack Mount
Cyclocross bikes are really versatile pieces of sports equipment. They become even more versatile when their frames and forks are prepared to accommodate full-size mudguards. Then a multi-layer wardrobe is sufficient to enjoy riding even in awful autumn or winter weather or working-out during a few extra commutes late in the year.
Our top supplier Shimano made a great innovation here. One that works reliably on any terrain when changing gears at the front has to be fast and precise - be it in competitions or on technical trails. Thanks to its upright axes the front derailleur cage swings outward and forward at the same time, and due to its direct actuation from the downtube only needs minimum operating force.
Additional step in welding. The first, rippled weld, typical for aluminium, is covered with a second smoother weld. This not only improves looks but also lowers the risk of notches in this spot, which makes the frames more durable.
The Super Prestige will prove this preferably off-road. Here its rider can experience the advantages of the single-chainring drivetrain: Intuitive operation free from any mis-shifts, a weight saving of 300 grams compared to 2x drivetrains and a large range of gears with the right one for any kind of situation.
Thru-axles provide more lateral stiffness and eliminate the risk of the front wheel shifting inside the fork. This way brake disc and axle always fit precisely without rubbing. For STEVENS bikes with a K1 rigid fork there is a thru-axle lock from Pitlock available as an option, including a 15-mm thru-axle made from aluminium, adaptor, PIT-key and code card. for more info see www.pitlock.de – Product "Set 19 thru axle 15mm for Stevens".
Cross bike with touring set (mudguards, pannier rack, lights)
E-bike with the 500-Wh Bosch PowerTube battery completely integrated into the down tube. The battery can be conveniently removed for charging.
Like PT5 but with 625-Wh battery
E-bike with an extra high legal weight limit of 180 kg
Stevens bike with luxurious specs like belt drive or hydraulic disc brakes as highlights
Shimano Synchro-Shift (MTB)
Selbst in extremsten Rennsituationen sind Di2-Schaltwerk und -Umwerfer in Sachen Präzision und Schnelligkeit nicht zu schlagen – und dank „Synchro-Shift“-Modus genügt dafür sogar nur ein Schalthebel, um eine frei programmierbare Abfolge vom kleinsten Klettergang bis Full-Speed mit „Kette rechts“ einzulegen. Bevor dabei der Umwerfer in Aktion tritt, ertönt stets ein Warnton, damit der Fahrer kurz Druck wegnehmen kann.
Tapered Steerer / Tapered Headtube
Fork shaft (or steerer tube) and head tube are tapered, meaning their diameter increases from top to bottom resulting in a conical shape. The diameter needs to be bigger at the bottom since this is where higher stress is applied - especially when the bike has a higher total weight due to luggage or an e-drive and battery. Also tapered steerers feature a smoother force transfer (like forces caused by hard braking) to the downtube than forks with a continuous 1 1/8" diameter.
Meaning a frame tube has three or two different wall thicknesses along its length. Triple butted (TB) is the usual technology with STEVENS high-quality frames. Tubes with different wall thicknesses are optimally adjusted to certain ways of manufacturing or to withstand specific loads. Where the highest loads occur or where tubes are welded, walls are the thickest. Butted tubes allow frame weight to be lower by several hundred grams.
Thanks to the USB port the dynamo can provide power not only to the head light but also to smartphone, GPS device or MP-3 player. Due to a buffer battery inside the head light charging current will always be at a constant level.
The highest-quality STEVENS frames equipped with gear hubs or 18-speed gear boxes from Pinion use adjustable drop-outs so chain or drive belt can always be set to correct tension. Adjustment via grub screw and Allen key enables very precise positioning. And two fastening screws on each side provide secure clamping. In models using derailleurs for shifting chain tension is taken care of by the derailleur.
High quality STEVENS frames equipped with a gear hub or Pinion 18-gear box come with adjustable dropouts. These make correct tensioning of the chain or drive belt very easy. Adjustment via headless set screw and Allen key allows very precise alignement. Two fastening bolts on each side provide tight grip. On bikes with derailleur shifting the chain is tensioned by the derailleur.
The most intelligent way of lightweight design for STEVENS engineers is to use carbon forks with 100% carbon fibers that run all way though from dropout to steerer tube in one single piece. This results in an amazing riding experience on and off-road: Lightweight, knife-sharp steering precision effortless climbing and maximum lateral stiffness even when combined with disc brakes.
We don't know any aero cockpit that offers a wider and more precise range of adjustability than the Aeria Ultima from Profile Design. It is simple a dream for every bike fitter. So the Volt's armrests and extensions can be positioned by height, width, reach and angle until you have found a seating position that is comfortable and efficient for many hours. What does this mean? Best conditions for the subsequent running stretch.