Close hint This page is from a former STEVENS Bikes model year (2019). 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.
Navigation

Sonora X0

Vikt 10.1 kg
Storlekar  27,5" - 16" | 29" - 18", 20", 22"
Ram Carbon SL HMF
Färg(er) Carbon Fire Red

Pricing

recomm. retail price
3 199.00 €

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 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 10.2kg. In short: Sonora XO.

  • Carbon hardtail with first-class handling
  • High-quality frame details: internal cable routing, pressfit bottom bracket ...
  • Lightweight Fox 32 Float Step Cast suspension fork w/ lockout remote control
  • Full Sram X01 Eagle DUB 1x12-speed drivetrain plus Shimano Deore XT disc brakes
  • DT Swiss wheels with boost axle standard (16" version: 27.5")

Technology

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 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.

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.

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.

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

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.

Utrustning

  • einfach
  • erweitert

Ramset

Ram
Carbon SL HMF
  • Double Chamber Technology
  • Axle: QR12x148
  • Brake: postmount disc 160
  • BB: Pressfit 92
  • Front derailleur mount: direct mount (high)
  • Cable routing: intern
Framgaffel
Fox 32 Float SC Performance
  • Step Cast technology
  • Travel: 100 mm
  • Air suspension
  • Remote Lockout
  • Tapered Steerer 1 1/8" - 1 1/2"
  • Axle: QR15x110
  • 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
Bromsar
Shimano Deore XT
  • BR-M8000
  • Hydraulic disc brake
  • Rotor: SM-RT81
  • Rotor size: 180/160 mm
  • Center-Lock

Drivlina

Vevparti
Sram X01 Eagle B DUB Carbon
  • 34 T
  • BB type: Press Fit MTB 89/92 mm / 29 mm
  • Boost chain line
Framväxel
-
Bakväxel
Sram X01 Eagle
  • 12-speed
  • Type-3 Roller Bearing Clutch™
  • Cage Lock™
  • Total capacity: 40 T
Kedja
Sram X01 Eagle
Kassett
Sram XG 1275 Eagle
  • 12-speed
  • Combination: 10-12-14-16-18-21-24-28-32-36-42-50 T
Gear ratio
Zoom 1.49 - 7.45 m, 1*12
Gear ratio
Zoom 1.57 - 7.85 m, 1*12

Hjul

Systemhjul
DT Swiss M 1900 Spline
  • ETRTO: 25 x 584 | 25 x 622
Däck
Schwalbe Rocket Ron Evolution
  • Tire size: 57-584 | 622
  • Foldable
  • Addix Speed compound
  • LiteSkin

Cockpit

Styre
Oxygen Scorpo
  • Width: 700 mm
  • Backsweep: 7°
  • Rise: 11 mm
  • Clamp: 31.8 mm
Styrstam
Oxygen Scorpo MTB
  • Handlebar clamp: 31.8 mm
  • Angle: 5°
Sadel
Oxygen Roccia
Sadelstolpe
Oxygen Scorpo MTB
  • Length: 380 mm
  • Diameter: 27.2 mm
  • Insertion depth: min. 100 mm
Växelreglage
Sram X01 Eagle Trigger
  • 12-speed
Bromshandtag
Shimano Deore XT
  • BL-M8000
  • 2 finger

Data

Vikt
10.1 kg
Storlekar
27,5" - 16" | 29" - 18", 20", 22"
Färg(er)
Carbon Fire Red
Laden weight
115 kg
  • Bike incl. rider, clothing and luggage
 

Geometri

schematische Skizze eines Fahrrades mit eingezeichneten Geometrie-Messpunkten

Ramhöjd (") 16 18 20 22 Mätinställning
Wheelsize (") 27.5 29 29 29  
Seattube length A1 605 627 642 652 nominal
Seattube length A2 376 427 478 510 bottom bracket to top of seattube
Seattube length A3 341 388 440 470 bottom bracket to top of top tube
Top tube length B 584 584 598 617  
Top tube horizontal C 595 600 620 640 center headtube to center seatpost/seattube
Headtube angle (°) D 69 70 70 70  
Seattube angle (°) E 74.5 74.5 74.5 74.5  
Wheelbase F 1106 1108 1123 1144  
Chainstay length G 425 435 435 435  
Headtube length H 95 95 110 120  
Bottom bracket drop I 53 70 70 70 distance of bottom bracket to hub level
Bottom bracket height K 301 301 301 301 distance to ground
Fork rake L 44 43 43 43  
Slope M 254 227 193 171 top tube level distance front to rear
Wheel radius N 354 371 371 371 incl. tires
Standover height O 714 755 787 811 top of top tube to ground*
Fork build height P 490 490 490 490 incl. lower headset cups
Front wheel - bottom bracket Q 686 676 697 718  
Reach R 433 432 448 466 center bottom bracket to center headtube, horizontal
Stack S 583 605 619 628 center bottom bracket to center headtube, vertical
Stack/Reach (1:x)   1.35 1.4 1.38 1.35 ratio stack to reach
Seatpost diameter   27.2 27.2 27.2 27.2  
Stem length   60 75 90 100 center-center
Stem angle (°)   6 6 6 6  
Handlebar diameter   31.8 31.8 31.8 31.8  
Assembled spacers   8.3 + 5 + 5 + 5 + 5  
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

// NEVER STOP