Sonora X0

Weight	10.1 kg
Frame	Carbon SL HMF
Color(s)	Slate Grey
Sizes	29" - 16", 18", 20", 22"

Pricing

Price: On Request

This Is What You Get …

... when STEVENS designs a racing machine for ambitious marathon riders on big 29" wheels: A top of the line carbon monocoque frame. Partnered with components that easily take the pounding of a full racing season - from Sram's full XO1 Eagle DUB 1x12-speed drivetrain and the super-light Fox Step Cast suspension fork to the shiny DT Swiss wheels and powerful Shimano Deore XT disc brakes. Altogether weighing in at only 10.1kg. In short: Sonora XO.

Carbon hardtail with first-class frame details and World Cup worthy handling
Lightweight Fox 32 Float Step Cast suspension fork w/ lockout remote control
Full Sram X01 Eagle DUB 1x12-speed drivetrain
DT Swiss 29" wheels with boost axle standard
Fast tires: Schwalbe Racing Ray / Racing Ralph

Technology

True monocoque frame

Only with this one-piece design all the advantages of carbon as a frame material can be exploited.

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 Fibers

For incredibly light frames and utmost stiffness.

Versatile cable routing

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

4-piston disc brakes

The most demanding riders are satisfied with nothing less in terms of braking performance and riding safety.

Di2-ready

Frames prepared for an elegant integration of electronic shifting.

Tapered Steerer / Tapered Headtube (MTB)

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

QR15 Front Thru-Axle (MTB + ATB + Pedelec)

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.

True monocoque frame

True monocoque frame To make this frame, all carbon fibre mats are placed in ONE mould and then "baked" with the resin matrix to form a premium frame. Only with this one-piece design all the advantages of carbon as a frame material can be exploited: perfect design for the actual loads, optimum power flow from the head tube via the main frame and seat and chain stays to the rear wheel - and all this with minimum material requirements (= weight!). Many carbon frames on the market are instead assembled from several pieces.

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.

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).

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.

Tapered Steerer / Tapered Headtube (MTB)

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 (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.

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.

Chassis

Frame

Carbon SL HMF

Double Chamber Technology
O.L.D.: 148 mm
Brake: postmount disc 6"
BB: Pressfit 92
Front derailleur mount: direct mount (high)
Cable routing: internal

Front fork

Fox 32 Float SC Performance

Step Cast technology
Travel: 100 mm
Air suspension
Remote Lockout
Tapered Steerer 1 1/8" - 1 1/2"
O.L.D.: 110 mm
Brake: postmount disc 6"

Headset

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

Upper bearing cup: IS42/28.6
Lower bearing cup: IS52/40

Brakes

Shimano Deore XT

BR-M8100
Hydraulic disc brake
Rotor: RT-MT800
Rotor size: 180/160 mm
Center-Lock

Drivetrain

Crankset

Sram X01 Eagle B DUB Carbon

34 T
BB type: Press Fit MTB 89/92 mm / 29 mm
Boost chain line

Derailleur r

Sram X01 Eagle

12-speed
Type-3 Roller Bearing Clutch™
Cage Lock™
Total capacity: 40 T

Chain: Sram X01 Eagle

Cassette

Sram XG 1275 Eagle

12-speed
Combination: 10-12-14-16-18-21-24-28-32-36-42-52 T

Gear ratio: 1.58 - 7.89 m, 1*12

Wheelset

System wheelset

DT Swiss X 1900 Spline

Axle: QR15x110/12x148 mm

Tires

Schwalbe Racing Ray | Racing Ralph Evolution

Tire size: 57-622
Foldable
Addix Speed compound
LiteSkin
Tubeless Easy

Cockpit

Handlebar

Oxygen Scorpo MTB

Width: 700 mm
Backsweep: 7°
Rise: 11 mm
Clamp: 31.8 mm

Stem

Oxygen Scorpo MTB

Handlebar clamp: 31.8 mm
Angle: 5°

Saddle: Oxygen Roccia

Seatpost

Oxygen Scorpo MTB

Length: 380 mm
Diameter: 30.9 mm
Insertion depth: min. 100 mm

Shiftlever

Sram X01 Eagle Trigger

12-speed

Brakelever

Shimano Deore XT

BL-M8100
2 finger

Data

Weight: 10.1 kg

Laden weight

115 kg

Bike incl. rider, clothing and luggage

Color(s): Slate Grey

Sizes: 29" - 16", 18", 20", 22"

Geometry

schematische Skizze eines Fahrrades mit eingezeichneten Geometrie-Messpunkten

Frame height (")		16	18	20	22	Measuring mode
Wheelsize (")		29	29	29	29
Seattube length	A1	624	629	644	661	nominal
Seattube length	A2	396	420	480	520	bottom bracket to top of seattube
Seattube length	A3	337	386	423	470	bottom bracket to top of top tube
Top tube length	B	552	574	596	619
Top tube horizontal	C	573	598	623	648	center headtube to center seatpost/seattube
Headtube angle (°)	D	70	70	70	70
Seattube angle (°)	E	74,5	74,5	74,5	74,5
Wheelbase	F	1075	1100	1127	1152
Chainstay length	G	435	435	435	435
Headtube length	H	95	100	115	125
Bottom bracket drop	I	65	65	65	65	distance of bottom bracket to hub level*
Bottom bracket height	K	306	306	306	306	distance to ground*
Fork rake	L	44	44	44	44
Slope	M	259	219	194	167	top tube level distance front to rear
Wheel radius	N	371	371	371	371	incl. tires
Standover height	O	734	766	795	826	top of top tube to ground**
Fork build height	P	490	490	490	490	incl. lower headset cups*
Front wheel - bottom bracket	Q	648	674	700	725
Reach	R	405	428	449	472	center bottom bracket to center headtube, horizontal
Stack	S	601	606	620	629	center bottom bracket to center headtube, vertical
Stack/Reach (1:x)		1,48	1,40	1,38	1,35	ratio stack to reach
Seatpost diameter		30,9	30,9	30,9	30,9
Stem length		70	80	90	100	center-center
Stem angle (°)		5	5	5	5
Handlebar diameter		31,8	31,8	31,8	31,8
Assembled spacers		8.3 + 5 + 5 + 5 + 10
Handlebar width		700,0	700,0	700,0	700,0
Cranklength		170	175	175	175
		16	18	20	22

* Values measured with rider on board and slightly compressed front fork / rearshock (regular riding position)

** measured 1/3 from seattube and 2/3 from headtube, fork and rearshock not compressed (static)

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.

Sonora X0

Pricing

This Is What You Get …

Technology

True monocoque frame

Boost standard fork

Boost Rear Axle Spacing

High-Modulus Carbon Fibers

Versatile cable routing

4-piston disc brakes

Di2-ready

Tapered Steerer / Tapered Headtube (MTB)

QR15 Front Thru-Axle (MTB + ATB + Pedelec)

E-thru Rear Axle

True monocoque frame

Boost standard fork

Boost Rear Axle Spacing

High-Modulus Carbon Fibers

Versatile cable routing

4-piston disc brakes

Di2-ready

Tapered Steerer / Tapered Headtube (MTB)

QR15 Front Thru-Axle (MTB + ATB + Pedelec)

E-thru Rear Axle

Equipment

Chassis

Drivetrain

Wheelset

Cockpit

Data

Geometry