This page is from a former STEVENS Bikes model year (2021).
These pages are meant as a service in case you have questions about equipment and geometry of older STEVENS bikes.
You can pick other model years at Service – Product Years.
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With the E-Courier Plus, STEVENS' engineers have apparently outwitted physics. Despite all the hype regarding the strength of a diamond-shape frame, the mighty Plus frame with low step-through is the #1 when it comes to durability. It can handle an enormous 180kg of combined bike, rider and luggage weight. Now even the strongest guys can experience the legendary STEVENS ride qualities for themselves. This includes the bike’s very comfortable handling and low maintenance gear hub/belt drive combo.
Comfortable pedelec with low step-thru but 180 kg of gross vehicle weight
Bosch G3 Performance Line Cruise system with 250 W/65 Nm and integrated PowerTube 625 battery
The e-bikes with the "Plus" suffix are allowed to weigh 180 kilograms, including rider and luggage. Enough for even the strongest types and most demanding tasks. The frames are designed for this load - and put to the acid test by the experts of the 'Zedler – Institut für Fahrradtechnik und -Sicherheit'.
New PT6 frame
Its powerful down tube fits the Bosch battery with the longest range. And the frame geometry has been further refined - for the eye, by adapting all tube dimensions to the crucial down tube. And for an even more harmonious riding experience, the tube lengths have been optimized and the cockpit with steeper stems has been adapted to a pleasantly upright sitting posture.
PT6 hollow chamber downtube
The sophisticated construction of the "Forma" frame version culminates in this down tube with triple hollow chamber profile. Its inner values are convincing: space for the large PowerTube625 battery from Bosch, including perfect weather protection. And the necessary stiffness to help the e-bike achieve maximum riding stability and high steering precision with pleasantly low step-through.
Selle Royal eZone saddle
Comfort plus: The Selle Royal eZone saddle, specially designed for e-bikes, stands out due to its high level of seating comfort, solid support (when accelerating) and practical carrying handle.
Bosch G3 Performance Line Cruise
When it says "Performance" on the outside, lots of power is inside: This power house delivers 250 Watts and 65 Nm. For your e-bike this means a sufficient support in any kind of situation – exactly what you have asked for. And the latest, 3rd generation of this drive system from Bosch (identified by its standard-size chainring) also shines with a barely perceptible noise as well as minimal resistance if you once again want to cross the 25kph threshold under your own power.
Abus YourPlus™
One key, any number of locks - the Abus "YourPlus™" program makes it possible to get keyed-alike locks with Plus lock cylinder. This is practical especially with e-bikes, as there are several locks on the bike: on the battery, as a frame lock and optionally an additional lock for connecting the bike to a fence or the like. Thanks to Abus YourPlus™ they can all be operated with a single key.
Bosch PowerTube 625
The largest e-bike battery to date from Bosch is the PowerTube 625. It pushes the pursuit for even longer range to a new level. With an energy content ("capacity") of 625 watt hours, it is good for almost any extended tours you can imagine. To help ensure it stays that way for a long time, we keep it well protected in the voluminous downtube of our top e-bike models.
Speed sensor integrated in the dropout
This view is only available when the rear wheel is removed - otherwise the sensor, which gives the e-bike drive system the decisive information about the current speed, is perfectly integrated and well protected in the rear left dropout. The not so rare error that the incorrectly positioned spoke magnet slows down the motor support is thus combated very effectively.
Belt Drive
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, significantly lower maintenance effort.
4-piston disc brakes
The demanding riders of high-end MTBs and touring e-bikes - with or without "E" support - are satisfied with nothing less than the most powerful hydraulic disc brakes in terms of braking performance and riding safety. They have 4 pistons per caliper instead of 2, and their larger brake pads can withstand much more heat, making them almost immune to fading (less friction due to heating).
IQ-X Head Light
The IQ-X head light range from Busch+Müller has a very bright, large and evenly lit light beam. The smaller, more elegant XS version outputs 70 Lux. The middle version IQ-X outputs 100 Lux. And the strongest IQ-XMF outputs 120 Lux on full beam, 80 Lux on dipped beam.
QR15 Front Thru-Axle (MTB + ATB + Pedelec)
"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.
Dropouts with integrated pannier rack eyelets
In collaboration with pannier rack specialists Tubus/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.
Integrated pannier rack strut
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.
Up To 52 mm Tire Clearance
When you ride on roads with less than perfect surface, you can now mount up to 52mm wide tires - e.g. Schwalbe’s current no.1, the Marathon E-Bike Plus - and benefit from maximum comfort and flat protection provided by its extra large air volume, as it can now be ridden with even lower tire pressure. Frames and forks are already prepared to fit these wider tires.
Hydroforming (ATB+Pedelec)
Using water pressure aluminium tubes are transformed from their original round shape into their ideal shape determined by STEVENS engineers and designers.
Tapered Steerer / Tapered Headtube (ATB+Pedelec)
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.
Triple Butted, Double Butted
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.
Plug in cover
The cover of the USB-C plug in is perfectly integrated into the bike frame. The high quality of the cover ensures a clean, tidy look on the one hand and easy handling on the other. Especially in the sensitive area of the plug in, it is important that it is optimally protected from dirt and other external influences.
Shimano Nexus Inter-5E hub gears
The Nexus Inter-5E hub gear was developed by Shimano especially for e-bikes and is thus optimally matched to the drive and other pedelec components such as brakes and on-board computer. The big advantage: the gear hub can withstand motor torques of up to 85 Nm and is therefore suitable for powerful drives. Changing gear ratios at high power levels is therefore no problem.