Specialized S-Works Stumpjumper FSR 650b 2016 Trail Mountain Bike

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The 2016 Specialized S-Works Stumpjumper FSR 650b is considered the pinnacle of 27.5” trail bikes. This top-end Stumpy features Specialized’s highest grade FACT 10m carbon technology, SRAM’s XX1 11 speed chainset and Shimano’s legendary XTR brakes to give it the ultimate performance where it really matters. The 150mm suspension at the rear comes courtesy of a custom Fox Float Factory CTD with their silky Kashima coating, whilst at the front the RockShox Pike RCT3, giving this bike an incredible amount of adjustability and versatility. The Stumpy Expert Carbon 29 benefits from Shimano’s XT brakes front and rear with SRAM’s x1 1x11 group set to get the power down. The 135mm of rear travel benefits from a buttery smooth Kashima coated custom Fox Float Factory CTD rear shock and the 140mm RockShox Pike RC takes care of things at the front.

The Specialized Stumpjumper name has been on the scene for nearly 35 years, and that’s not by accident. Since the first Stumpjumper FSR back in 1994, Specialized’s continued innovation and evolution of the original 4 bar linkage has resulted in one of the handling trail bikes on the market. The Stumpy is available on interest free finance (0%) with flexible deposit options from £0.

Key Features:

  • FACT 10m carbon fibre Trail Chassis with Stumpjumper FSR M5 chainstay blends stiffness with lightweight to form the pinnacle of efficiency, while fully enclosed cable routing and an integrated SWAT Door create exceptional handling and zero-hassle storage.
  • Connected with the FSR 6-Pack Linkage, a custom FOX FLOAT Factory rear shock features AUTOSAG for easy setup and 150mm of plush, adjustable suspension, while the Rx Trail Tune gives a more supple, responsive, and efficient feel for climbing up and descending down the trail.
  • RockShox Pike RCT3 650b fork features a 15mm Maxle Ultimate thru-axle and 150mm of plush travel to take on big hits and bumpy terrain with supreme confidence and efficiency.
  • 27.5x2.3 Specialized Butcher Control front tyre inspires confidence through any terrain.
  • 27.5x2.3 Specialized Purgatory Control rear tyre delivers reliable traction over a diverse section of soils and conditions.
  • Command Post IRcc seatpost features 12 positions of up to 125mm of height adjustability for a more customizable position, ultimately resulting in more control and increased handling on both climbs and descents.


Frame FACT 10m carbon, Trail 650b Geometry, FACT IS carbon construction, M5 alloy chainstays, SWAT Door integration, fully enclosed internal cable routing
Forks RockShox Pike RCT3 650b, Solo Air spring, 150mm travel, 2-stage compression adjust, rebound adjust, tapered steerer, 42mm offset, 15mm Maxle Ultimate thru-axle
Rear_Shock Custom FOX FLOAT Factory CTD, AUTOSAG, Rx Trail Tune, Boost Valve, Kashima coating, 197x47.6mm
Headset Hella Flush, 1-1/8" and 1-1/2" threadless, Campy style upper w/ 1-1/2" lower, cartridge bearings
Handlebars Specialized FACT carbon, 8-degree backsweep, 6-degree upsweep, 25mm rise, 750mm, 31.8mm
Stem Syntace F109, 6-degree rise
Shifters 11 Speed SRAM XX1, 11-speed, trigger
Rear_Mech SRAM XX1, 11-speed
Chainset S-Works, FACT carbon, 30T X-Sync ring, 104mm BCD spider
Bottom_Bracket SRAM, PF30, OS press-in bearings, sealed cartridge
Chain SRAM PC-XX1, 11-speed, w/ PowerLink
Cassette SRAM XX1, 11-speed, 10-42t
Front_Brake Shimano XTR Trail, hydraulic disc, Ice-Tech metallic pads w/ fins
Rear_Brake Shimano XTR Trail, hydraulic disc, Ice-Tech metallic pads w/ fins
Rims Roval Traverse SL 650b, carbon, disc, 30mm inner width, 24/28h
Front_Hub Roval Traverse SL, 15mm thru-axle, 24h
Rear_Hub Roval Traverse SL 142+, DT Swiss Star Ratchet, 54t engagement, SRAM XX1 XD driver body, 28h
Spokes DT Swiss Revolution
Tyres Specialized Butcher Control, 60TPI, 2Bliss Ready, folding bead, 650bx2.3" FrontSpecialized Purgatory Control, 60TPI, 2Bliss Ready, folding bead, 650bx2.3" Rear
Seatpost Command Post IRcc, cruiser control technology, micro-adjust height adjustable, alien head design, bottom mount cable routing, remote adjust SRL lever, 30.9mm, S: 100mm travel, M/L/XL: 125mm

Occasionally, without notice, manufacturers change product design and/or specifications.