Close hint This page is from a former STEVENS Bikes model year (2017). 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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Mobster

Weight 14.8kg
Sizes  16", 18", 20", 22"
Frame Aluminium 6061
Color(s) Camouflage

Pricing

Price
On Request

The Monster-Roller.

You have to test it to believe it: With its unbelievable 4.0 inch rollers the Mobster smoothes anything that gets in the way of riding fun: roots, stones, snow, curbs, stairs …

  • Fatbike with weight-optimized double butted aluminum frame
  • 4.0" = 10 cm fat Schwalbe Jumbo Jim tires
  • Reliable Shimano Deore XT/Deore 2x10-speed gears
  • RaceFace crankset (36/22 teeth), specifically for 100 mm bottom bracket width
  • Solid Shimano hydraulic disc brakes (180 mm)

Technology

Hydroforming

Using water or oil pressure aluminium tubes are transformed from their original round shape into their ideal shape determined by STEVENS engineers to perfectly withstand any load without any weight penalty. This means better steering precision on the trail and higher longevity.

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.

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.

QR15-Steckachse vorn

Die „15“ steht für den Achsdurchmesser, das „QR“ für „Quick Release“, also Schnellspanner – und zusammen für die funktionellste Methode, das Vorderrad in der (Feder-)Gabel zu verankern. Die Vorteile sind bestechend: hohe Steifigkeit, präzise Bremsscheiben-Positionierung und kinderleichte Bedienung. Also stattet STEVENS fast alle Mountainbikes und sogar die hochwertigsten Trekking-, Crossbikes und Pedelecs damit aus. Vor allem bei den 29“-MTBs wird sogar noch die Einbaubreite erhöht – von 100 auf 110 mm, das ist noch steifer.

E-thru Rear Axle

This abbreviation stands for Shimano's thru-axle standard for MTB rear stays that integrates a thread into the dropout. On the majority of STEVENS mountain bikes a 12mm thru axle provides outstanding rear triangle stiffness and utmost precision in brake disc alignement to prevent annoying brake rub.

Equipment

  • einfach
  • erweitert

Chassis

Frame
Aluminium 6061
  • Axle: QR10x135
  • Brake: postmount disc 6"
  • BB: BSA 100mm
  • Front derailleur mount: clamp
  • Cable routing: external
  • Rack mounts
Front fork
STEVENS SPF Unicrown
  • Aluminum Steerer
  • Tapered Steerer 1 1/8" - 1 1/2"
Headset
STEVENS MTB Taper 1 1/8" - 1 1/2"
  • Upper bearing cup: ZS44/28.6
  • Lower bearing cup: ZS55/40
Brakes
Shimano BR-M395
  • Hydraulic Discbrake
  • Rotor: SM-RT56
  • Scheibendurchmesser: 180/160mm
  • IS / 6-Bolt
  • 2 finger

Drivetrain

Crankset
RaceFace OCK 12 RXC
  • Teeth count: 36-22 T
  • BB type: BSA 100mm
Derailleur f
Shimano Deore
  • FD-M618-D6
Chain
KMC X10
Derailleur r
Shimano Deore XT Shadow
  • RD-M781-SGS
  • 10-speed
  • Total capacity: 43 T
Cassette
Shimano CS-HG50
  • 10-speed
  • Combination: 11-13-15-17-19-21-24-28-32-36 T
Gear ratio
Zoom 1.40 - 7.49 m, 2*10

Wheelset

Hubs
Oxygen Disc | Oxygen Disc
Rims
Aluminium SB-80 Disc
Tires
Schwalbe Jumbo Jim Evolution
  • Tire size: 100-559
  • Foldable
  • PaceStar compound
  • Lite-Skin

Cockpit

Handlebar
Oxygen Driver
  • Width: 700mm
  • Backsweep: 9°
  • Rise: 25mm
  • Clamp: 31.8mm
Stem
Oxygen Driver
  • Handlebar clamp: 31.8mm
  • Angle: 6°
Saddle
Oxygen Havoc
Seatpost
Oxygen Driver
  • Length: 350mm
  • Diameter: 31.6mm
  • Insertion depth min. 100mm
Shiftlever
Shimano Deore
  • SL-M610
Brakelever
Shimano BL-M396
  • 2 finger

Data

Weight
14.8kg
Sizes
16", 18", 20", 22"
Color(s)
Camouflage
Laden weight
115kg
  • Bike incl. rider, clothing and luggage
 

Geometry

schematische Skizze eines Fahrrades mit eingezeichneten Geometrie-Messpunkten

Frame height (") 16 18 20 22 Measuring mode
Seattube length A1 614 629 644 659 nominal
Seattube length A2 394 445 483 540 bottom bracket to top of seattube
Seattube length A3 354 405 443 500 bottom bracket to top of top tube
Top tube length B 559 580 599 615  
Top tube horizontal C 576 603 625 640 center headtube to center seatpost/seattube
Headtube angle (°) D 70 70 70 70  
Seattube angle (°) E 73 73 73 73  
Wheelbase F 1097 1125 1148 1164  
Chainstay length G 465 465 465 465  
Headtube length H 110 125 140 155  
Bottom bracket drop I 60 60 60 60 distance of bottom bracket to hub level
Bottom bracket height K 313 313 313 313 distance to ground
Fork rake L 45 45 45 45  
Slope M 242 209 187 148 top tube level distance front to rear
Wheel radius N 373 373 373 373 incl. tires
Standover height O 729 766 795 836 top of top tube to ground*
Fork build height P 468 468 468 468 incl. lower headset cups
Front wheel - bottom bracket Q 639 667 690 705  
Reach R 396 419 437 447 center bottom bracket to center headtube, horizontal
Stack S 588 602 615 630 center bottom bracket to center headtube, vertical
Stack/Reach (1:x)   1.48 1.44 1.41 1.41 ratio stack to reach
Seatpost diameter   31.6 31.6 31.6 31.6  
Stem length   70 70 80 80 center-center
Stem angle (°)   6 6 6 6  
Handlebar diameter   31.8 31.8 31.8 31.8  
Assembled spacers   7.3 + 5 + 5 + 5  
Handlebar width   700 700 700 700  
Cranklength   170 175 175 175  
    16 18 20 22  

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

// NEVER STOP