Jura Carbon ES

Weight	12.1 kg
Sizes	27,5" - 16" \| 29" - 18", 20", 22"
Frame	Carbon SL HMF
Color(s)	Carrara White

Pricing

Price: On Request

The superior Marathon and Trail Machine.

First, prototypes and pre-production bikes had to prove themselves in competition and now it is ready to be ridden to victory or for fun. With a light but stiff full carbon frame and Fox' innovative 34 Step Cast suspension fork. With Shimano's completely new Deore XT 2x12-speed group and many other top-shelf components including a dropper post. With frame size specific wheels in either 27.5" or 29" diameter. And 100% ready for marathon/XC races or fast trail riding.

Full carbon bike with marathon geometry
Responsive Fox Float Performance chassis (120/120 mm) w/ super-light step-cast fork
High-quality DT Swiss wheels plus very fast Schwalbe Rocket Ron tires
Completely new Shimano Deore XT 2x12 groupset
Classy Syntace cockpit plus dropper seat post

Technology

Rear shock Development

Specific suspension set-up for maximum performance in any type of bike.

Dropper Post

Optimum seating level for best drivetrain efficiency. Push the button: saddle down for best clearance on technical descents.

Boost-Standard fork

What is right for the rear wheel is even more important at the front wheel - because steering precision matters.

Boost Rear Axle Spacing

Since model year 2016 the axle spacing in the rear stays of all STEVENS fullies adhere to the new "Boost" standard.

High-Modulus Carbon Fibres

For incredibly light frames and utmost stiffness.

Versatile cable routing

To ride your bike like you want to: Versatile cable routing.

Tapered Steerer / Tapered Headtube

Riders benefit from noticeably higher steering precision, almost without weight penalty.

QR15 Front Thru-Axle

The most useful method to fix the front wheel to the (suspension) fork.

E-thru Rear Axle

Thru-axle standard from Shimano for extra stiff rear triangles and precision in brake disc alignement.

Chain Stay Protector

To protect the chain stays of STEVENS carbon fullies from a slapping chain.

Di2-ready

Frames prepared for an elegant integration of electronic shifting.

Rearshock Development

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.

Dropper Post

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.

Boost-Standard Fork

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 this bike. 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.

Boost Rear Axle Spacing

This bike adheres to the "Boost" 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.

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.

Versatile cable routing

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.

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.

QR15 Front Thru-Axle

"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.

E-thru Rear Axle

This abbreviation stands for Shimano's thru-axle standard for rear stays that integrates a thread into the dropout. As a result, the 12mm thru axle provides outstanding rear triangle stiffness and utmost precision in brake disc alignement to prevent annoying brake rub.

Chain Stay Protector

Now you can tackle any downhill ramp without worry: The specially fitted chain stay protector prevents the chain stays of STEVENS carbon fullies from getting damaged by a slapping chain.

Di2-ready

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.

Chassis

Frame

Carbon SL HMF

O.L.D.: 148 mm
Brake: postmount disc 7"
BB: Pressfit BB89.5
Front derailleur mount: Direct mount (high)
Cable routing: internal

Front fork

Fox 34 Float SC Performance

Travel: 120 mm
Air suspension
Remote Lockout
Tapered Steerer 1 1/8" - 1 1/2"
O.L.D.: 110 mm
Brake: postmount disc 6"

Headset

STEVENS MTB Taper 1 1/8"-1 1/2"

Upper bearing cup: ZS44/28.6
Lower bearing cup: ZS55/40

Shock absorber

Fox Float DPS Performance Elite

Travel: 120 mm
Air suspension
Remote Lockout
Length: 190 mm
Shock travel: 51 mm
Mounting width: 22.2x8 mm/22.2x8 mm

Brakes

Shimano Deore XT

BR-M8100
Hydraulic disc brake
Rotor: SM-RT70
Rotor size: 180/180 mm
Center-Lock

Drivetrain

Crankset

Shimano Deore XT

FC-M8120-B
36-26 T
BB type: Pressfit BB92 / Hollowtech II
Boost chain line

Derailleur f

Shimano Deore XT

FD-M8020-D6
Side-Swing

Derailleur r

Shimano Deore XT Shadow+

RD-M8120-SGS
12-speed
Total capacity: 45 T

Chain: Shimano CN-M8100

Cassette

Shimano Deore XT

CS-M8100
12-speed
Combination: 10-12-14-16-18-21-24-28-32-36-40-45 T

Gear ratio: 1.27 - 7.88 m, 2*12

Gear ratio: 1.33 - 8.32 m, 2*12

Wheelset

System wheelset

DT Swiss M 1700 Spline Two

Axle: QR15x110/12x148 mm

Tires

Schwalbe Rocket Ron Evolution

Tire size: 57-584 | 622
Foldable
Addix Speed compound
LiteSkin

Cockpit

Handlebar

Syntace Vector Carbon

Width: 760 mm
Backsweep: 12°
Rise: 10 mm
Clamp: 31.8 mm

Stem

Syntace Force 109

Handlebar clamp: 31.8 mm
Angle: 6°

Saddle: Oxygen Roccia

Seatpost

Kind Shock LEV-SI

Travel: 100 mm | 125 mm | 150 mm
Remote Lockout
Length: 350 mm | 400 mm | 450 mm
Diameter: 30.9 mm
Insertion depth: min. 90 mm (100) | 100 mm (125 + 150)

Shiftlever

Shimano Deore XT

SL-M8100 I-Spec EV
12-speed

Brakelever

Shimano Deore XT

BL-M8100
2 finger

Data

Weight: 12.1 kg

Sizes: 27,5" - 16" | 29" - 18", 20", 22"

Color(s): Carrara White

Laden weight

115 kg

Bike incl. rider, clothing and luggage

Test Reports

Leicht und rassig

06/2020

Das leichte STEVENS prescht zügig voran – mit seiner sportlich-gestreckten Sitzposition ist es für lange und schnelle Rides gemacht.

Kauftipp für komfortbetonten Marathon-Racer

06/2019

The Jura Carbon ES is a comfort-oriented marathon racer with well-rounded, very solid specs and always predictable handling uphill as well as downhill .

Höhenmeterfresser

10/2018

The Stevens is the most sporty bike in the test. Uphill it's a class of its own, yet downhill you need to make some compromises. The low weight makes the Jura just eat miles and vertical feet.

Bike Freak-Leser-Urteil

12/2017

Best in test field in descending. The testers were so satisfied with its shifting performance, suspension and all-round specs that they awarded the STEVENS Jura Carbon ES with a clear "very good".

Wie auf einem fliegenden Teppich

11/2017

Thanks to its versatility the Jura Carbon ES can handle even the most extreme terrain: a bike that you can do everything with in the mountains.

Auf langen Touren komfortabel cruisen

10/2017

A fast marathon fully with good specs and ride characteristics to cruise comfortably for hours.

Die Vielseitigkeit in Person

03/2017

The Jura Carbon ES is a versatile touring fully for long distances. A charming bike that is not too extreme in any aspect.

Geometry

schematische Skizze eines Fahrrades mit eingezeichneten Geometrie-Messpunkten

Frame height (")		16	18	20	22	Measuring mode
Wheelsize (")		27,5	29	29	29
Seattube length	A1	588	614	626	646	nominal
Seattube length	A2	430	455	500	530	bottom bracket to top of seattube
Top tube length	B	540	559	581	602
Top tube horizontal	C	569	585	610	630	center headtube to center seatpost/seattube
Headtube angle (°)	D	68,5	68,5	68,5	68,5
Seattube angle (°)	E	74,5	74,5	74,5	74,5	effective, to top of HT
Wheelbase	F	1116	1152	1173	1194
Chainstay length	G	430	445	445	445
Headtube length	H	100	100	110	130
Bottom bracket drop	I	18	35	35	35	distance of bottom bracket to hub level
Bottom bracket height	K	331	333	333	333	distance to ground
Fork rake	L	44	51	51	51
Wheel radius	N	349	368	368	368	incl. tires
Standover height	O	757	768	767	766	top of top tube to ground*
Fork build height	P	508	521	521	521	incl. lower headset cups
Front wheel - bottom bracket	Q	687	709	730	751
Reach	R	422	433	450	463	center bottom bracket to center headtube, horizontal
Stack	S	569	596	605	624	center bottom bracket to center headtube, vertical
Stack/Reach (1:x)		1,35	1,38	1,34	1,35	ratio stack to reach
Seatpost diameter		30,9	30,9	30,9	30,9
Stem length		60	80	80	90	center-center
Stem angle (°)		5,0	5	5	5
Handlebar diameter		31,8	31,8	31,8	31,8
Assembled spacers		5 + 5 + 5 + 5 + 10 + 10
Handlebar width		760	760	760	760
Cranklength		170	175	175	175
		16	18	20	22

* measured 1/3 from seattube and 2/3 from headtube

Bike-Category 5

Cross-country, marathon and touring mountain bikes

This category describes STEVENS cross-country, marathon and touring mountain bikes and is typically represented by STEVENS mountain bike hardtails and full suspension STEVENS bikes with short suspension travel. STEVENS MTB Marathon 120, Carbon XC, Alloy XC.

Instructions on intended use

The permissible overall weight (rider incl. baggage and bicycle) should not exceed 115 kg. Under certain circumstances the permissible maximum weight can be further limited by the component manufacturers’ recommendations for use.

The following weight limits for the rider including equipment and STEVENS bicycle apply to special wheels:

Mavic:	100 kg
DT Swiss:	110 kg

STEVENS cross-country, marathon and touring mountain bikes are suitable for off-road use, but not for blocked terrain, tricks, stair riding etc., training and competitive use in the categories freeride, dirt, downhill. STEVENS bikes of this category can be used on surfaces permitted for bikes of the categories 1 and 3 and are in addition suitable for rough and unpaved terrains. Sporadic jumps are also included in the field of use of these STEVENS bikes. But particularly inexperienced riders doing jumps may land inappropriately, thus increasing the acting forces significantly which may result in damage and injuries. We recommend that you train your skills in a riding technique course. If necessary, ask your STEVENS dealer to inspect your STEVENS bicycle at shorter intervals than according to the service and maintenance schedule.

For full suspension STEVENS mountain bikes trailers are not permitted.

Due to their design and fittings, STEVENS mountain bikes of the category 5 are not always suitable for being used on public roads. If you want to use them on public roads, these bikes must be fitted with the prescribed equipment. Observe the traffic rules when riding on public roads. For more information see chapter “Legal Requirements for Riding on Public Roads” in your comprehensive STEVENS user manual on the enclosed CD-ROM

Danger:

STEVENS bicycles of the category 5 are not suitable for use on blocked terrain, jumps, slides, stair riding, stoppies, wheelies, tricks etc.!

The mountain bike itself describing one particular type of bike does not exist any longer. Various types of mountain bikes for specific uses have been developed instead. Be sure to use your STEVENS mountain bike only according to its intended use. Observe the traffic rules when riding on public roads.

Jura Carbon ES

Recommended Frame Size

Pricing

The superior Marathon and Trail Machine.

Technology

Rear shock Development

Dropper Post

Boost-Standard fork

Boost Rear Axle Spacing

High-Modulus Carbon Fibres

Versatile cable routing

Tapered Steerer / Tapered Headtube

QR15 Front Thru-Axle

E-thru Rear Axle

Chain Stay Protector

Di2-ready

Rearshock Development

Dropper Post

Boost-Standard Fork

Boost Rear Axle Spacing

High Modulus Carbon Fibers

Versatile cable routing

Tapered Steerer / Tapered Headtube

QR15 Front Thru-Axle

E-thru Rear Axle

Chain Stay Protector

Di2-ready

Equipment

Chassis

Drivetrain

Wheelset

Cockpit

Data

Test Reports

Leicht und rassig

Kauftipp für komfortbetonten Marathon-Racer

Höhenmeterfresser

Bike Freak-Leser-Urteil

Wie auf einem fliegenden Teppich

Auf langen Touren komfortabel cruisen

Die Vielseitigkeit in Person

Geometry