Sonora Generation 1

Frame Carbon SL HMF
Weight 11.8 kg
Sizes 29" - 16", 18", 20", 22"
Color Mint Black

Pricing

recomm. retail price
1 999.00 Fr.

The entry into the carbon hardtail world.

The STEVENS Sonora combines high-tech components such as a carbon monocoque frame, a reliable SX/NX Eagle 1x12-speed drivetrain from SRAM and hydraulic SRAM disc brakes into a lightweight performance package with excellent handling and plenty of durability, even over a long cross-country season.

  • Carbon hardtail with first-class frame details and World Cup worthy handling
  • Lightweight RockShox SID SL fork
  • SRAM NX/SX Eagle DUB 1x12-speed drivetrain
  • Powerful Sram Level TA-1 disc brakes
  • 740 mm handlebar width for maximum control

Technology

QR15 thru axle

QR15 thru axle

The most functional method of anchoring the front wheel in the (suspension) fork.

Read more …
E-thru rear axle

E-thru rear axle

Shimano thru-axle standard for rear triangle stiffness and precise positioning of the brake disc.

Read more …

QR15 thru axle

QR15 thru axle

The "15" stands for the axle diameter, the "QR" for "Quick Release" – and together for the most functional method of anchoring the front wheel in the (suspension) fork. The advantages are impressive: high rigidity, precise brake disc positioning and foolproof operation. STEVENS therefore equips all mountain bikes and E-MTBs as well as the highest quality trekking bikes, cross bikes and E-bikes with them. For (E-)MTBs in particular, the installation width has even been increased – from 100 to 110 mm, which is even stiffer.

E-thru rear axle

E-thru rear axle

This abbreviation stands for Shimano’s thru-axle standard for rear triangles, in which the threaded nut is integrated directly into the dropout. The 12 mm axle ensures outstanding rear triangle stiffness and absolutely precise positioning of the brake disc – this avoids annoying grinding noises.

Specifications

Details

Illustration may differ. Specification subject to change.

Chassis

Frame
Carbon SL HMF
  • O.L.D.: 148 mm
  • Brake: postmount disc 6"
  • BB: Pressfit BB92
  • Cable routing: internal
  • Cable routing: internal
Fork
Rock Shox SID SL
  • Travel: 100 mm
  • Air suspension
  • Tapered Steerer 1 1/8" - 1.5"
  • O.L.D.: 110 mm
  • Brake: postmount disc 6"
Headset
STEVENS MTB Taper 1 1/8"-1 1/2"
  • Upper bearing cup: IS42/28.6
  • Lower bearing cup: IS52/40
Brake front
SRAM Level T-A1
  • Hydraulic disc brake
Brake rear
SRAM Level T-A1
  • Hydraulic disc brake
Brake disc front
SRAM Centerline A2
  • Rotor size: 180 mm
  • Center Lock
Brake disc rear
SRAM Centerline A2
  • Rotor size: 160 mm
  • Center Lock

Drivetrain

Crankset
SRAM SX Eagle B DUB
  • 34 T
  • BB type: Press Fit MTB 89/92 mm / 24 mm
  • Boost chain line
Derailleur rear
SRAM SX Eagle
  • RD-SX-1-B1
  • 12-speed
  • Cage Lock™
  • X-Actuation™
  • Total capacity: 40 T
Chain
SRAM SX Eagle
Cassette
SRAM PG 1210 Eagle
  • 12-speed
  • Combination: 11-13-15-17-19-22-25-28-32-36-42-50 T

Wheelset

Hubs rear
Shimano FH-MT400-B
  • Axle: QR12x148 mm
Hubs front
Strummer CLTP
  • Axle: QR15x110 mm
Rims
Oxygen RM-26 Disc
  • ETRTO: 26 x 622
Tire front
Schwalbe Racing Ray
  • Tire size: 57-622
  • Foldable
  • ADDIX compound
  • TwinSkin
Tire rear
Schwalbe Racing Ralph
  • Tire size: 57-622
  • Foldable
  • ADDIX compound
  • TwinSkin

Cockpit

Handlebar
Oxygen Scorpo MTB
  • Width: 700 mm
  • Backsweep: 9°
  • Rise: 15 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
Shift lever right
SRAM NX Eagle Trigger
  • 12-speed
Brake lever
SRAM Level T
  • DirectLink™

Data

Weight
11.8 kg
Laden weight
115 kg
Color(s)
Mint Black
Sizes
29" - 16", 18", 20", 22"
 

Geometry

schematische Skizze eines Fahrrades mit eingezeichneten Geometrie-Messpunkten

The online size guide does not replace advice from a specialist retailer. It serves as an initial orientation and may differ from personal preferences. A test ride offers the best comparison.

Frame height (")   16 18 20 22 Measuring mode
Seattube length A1 630 635 651 661 nominal
Seattube length A2 399 445 483 523 bottom bracket to top of seattube
Seattube length A3 347 393 432 472 bottom bracket to top of top tube
Top tube length B 558 574 596 619
Top tube horizontal C 575 600 625 650 center headtube to center seatpost/seattube
Headtube angle (°) D 69,5 69,5 69,5 69,5
Seattube angle (°) E 73,7 73,7 73,7 73,7
Wheelbase F 1087 1113 1139 1165
Chainstay length G 435 435 435 435
Headtube length H 95 100 115 125
Bottom bracket drop I 60 60 60 60 distance of bottom bracket to hub level*
Bottom bracket height K 310 310 310 310 distance to ground*
Fork rake L 51 51 51 51
Slope M 255 216 191 164 top tube level distance front to rear
Wheel radius front N1 372 372 372 372 tyred
Wheel radius rear N2 372 372 372 372 tyred
Standover height O 747 779 806 835 top of top tube to ground**
Top tube height O1 376 408 435 464 standover height minus bottom bracket height
Fork build height P 506 506 506 506 incl. lower headset cups*
Front wheel - bottom bracket Q 659 684 710 736
Reach R 398 421 442 465 center bottom bracket to center headtube, horizontal
Stack S 605 610 625 635 center bottom bracket to center headtube, vertical
Stack/Reach (1:x)   1,52 1,45 1,41 1,37 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 + 3*5
Handlebar width   740 740 740 740
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 100 mm ahead of bottom bracket, fork and rearshock not compressed (static)