2021 Specialized
Stumpjumper Alloy

Stumpjumper Alloy - photo 1
Click any image to enlarge
ID Option Price Order
21241 S1, Satin Black/Smoke £1899.00 Order »
21242 S2, Satin Black/Smoke £1899.00 Order »
21243 S3, Satin Black/Smoke £1899.00 Order »
21244 S4, Satin Black/Smoke £1899.00 Order »
21245 S5, Satin Black/Smoke £1899.00 Order »
21246 S6, Satin Black/Smoke £1899.00 Order »
21247 S1, Satin Blaze/Black £1899.00 Order »
21248 S2, Satin Blaze/Black £1899.00 Order »
21249 S3, Satin Blaze/Black £1899.00 Order »
21250 S4, Satin Blaze/Black £1899.00 Order »
21251 S5, Satin Blaze/Black £1899.00 Order »
21252 S6, Satin Blaze/Black £1899.00 Order »

Product Description

The Stumpjumper Alloy brings all-new suspension kinematics and progressive geometry into a full-alloy package that's both lightweight and extremely durable. Outfitted with a no-fuss SRAM SX 12-speed groupset, the Stumpjumper Alloy is your all-access pass for trail adventure.

TRAIL-TAMING TRAVEL All the travel in the world is useless without the proper kinematics, which is why we kept it at the forefront of the new Stumpjumper design. With the learnings from the suspension design on the Enduro, and over 1,000 hours of field and suspension lab development, we’ve greatly improved the pedaling performance, all while creating the capable, efficient, lively feelings that you long for. We increased anti-squat, so the suspension better-resists pedal bob and then, we further-improved bump performance on square-edge hits. Bottom line? The all-new Stumpjumper descends with complete control yet climbs with ease.
THE TRAIL BENCHMARK When we set out to design the all-new Stumpjumper, we pursued some hefty goals. We went after the lightest-possible weight that sacrifices nothing to durability, a stiff chassis that corners on rails, and a geometry that everyone can enjoy, all with the best suspension kinematics we know how to design. Turns out, you can have your cake and eat it too with the new Stumpjumper.
PROGRESSIVE GEOMETRY The S-Sizing geometry of the new Stumpjumper hits the progressive sweet spot. Long, low, slack, a short offset fork, a steeper seat tube angle—they’re all the talk of the town because they make your ride better. With Flip Chip adjustability you’re able to further fine-tune your fit, ensuring that your new Stumpjumper performs flawlessly on whatever terrain you choose.

Please note that this bike does not come with pedals.

Product Specification

FRAME :Alloy chassis and rear-end, asymmetrical design, 29 Trail Geometry, horst pivot BB adjustment, threaded BB, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel
REAR SHOCK :X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout S1:190x42.5mm, S2-S6: 190x45mm
FORK :RockShox 35 Silver, Solo Air, 44mm offset, rebound adjust, TurnKey lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 140mm of travel
STEM :Alloy Trail Stem, 35mm bar bore
TAPE :Specialized Trail Grips
HANDLEBARS :Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 800mm width
FRONT BRAKE :Tektro Gemini Comp, hydraulic disc, resin pad, 200mm
REAR BRAKE :Tektro Gemini Comp, hydraulic disc, resin pad, 180mm
REAR DERAILLEUR :SRAM SX Eagle, 12-speed
SHIFT LEVERS :SRAM SX Eagle, trigger, 12-speed
CASSETTE :SRAM PG-1210 Eagle, 11-50t
CHAIN :SRAM SX Eagle, 12-speed
CRANKSET :SRAM SX Eagle, DUB, S1:165mm, S2-S5: 170mm, S6: 175mm
CHAINRINGS :Steel, 30T
BOTTOM BRACKET :SRAM Powerspline
RIMS :700c disc, double-wall alloy, sleeved, 32h
FRONT HUB :Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
REAR HUB :Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h
FRONT TYRE :Butcher, GRID casing, GRIPTON® compound, 29x2.3"
REAR TYRE :Purgatory, GRID Casing, GRIPTON® compound, 29x2.3"
SPOKES :Stainless, 14g
INNER TUBES :Standard, Presta valve
SADDLE :Body Geometry Bridge Saddle, steel rails
SEATPOST :TranzX dropper, 34.9mm, XS-S: 100mm, M: 120mm, L/XL: 150mm Travel
SEAT BINDER:Alloy, 38.6

Like this product? Please share it with others...


Follow Bike Scene on Instagram

NEWSLETTERS - Keep up-to-date with our latest offers!