2023 Specialized Stumpjumper Alloy Full Suspension Mountain Bike

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The 2023 Specialized Stumpjumper Alloy Full Suspension Mountain Bike is the all-new Specialized Stumpjumper re-designed to achieve big goals and excel on any trail, for every style of rider.

Improvements like a considerable weight reduction have been researched and tweaked without sacrificing durability, a stiff, responsive chassis that still rides light and lively, geometry that improves everyone's riding.

The Stumpjumpers new suspension brings out the very best all-round performance possible. Hours of suspension lab development and field testing created a refined mid-travel ripper that handles like a dream everywhere and climbs like it has a motor.

The S-Sizing geometry of the new Stumpjumper hits the progressive sweet spot. It's long, low and slack, with a short offset fork and a steeper seat tube angle. These numbers combine to make your ride more stable, more carving, more comfortable climbing, better everywhere! With FlipChip adjustability you're able to fine-tune your fit further, ensuring that your new Stumpjumper performs flawlessly on whatever terrain you choose. Frames also use a size-specific approach to ride characteristics that ensure benchmark handling and flawless performance, regardless of frame or rider size. No matter how you ride you'll experience the same ride traits – rail-sharp cornering a balanced front and rear stiffness – at the lightest possible weight.

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, Tektro Gemini Comp, hydraulic disc brakes and TranzX dropper Seatpost, the Stumpjumper Alloy is your all-access pass for a trail adventure.

Features

  • SRAM PG-1210 Eagle 12-speed drivetrain
  • X-Fusion and RockShox 35 Silver suspension
  • Tektro Gemini Comp, hydraulic disc brakes
  • TranzX dropper, 34.9mm, XS-S: 100mm, M: 120mm, L/XL: 150mm Travel

Specialized MTB Range Guide

Specialized have been making mountain bikes for nearly as long as there have been mountain bikes. Models like the Rockhopper and Stumpjumper have been staples of the range for decades with the technology being updated and refined every year. The 2022 Specialized mountain bike range has bikes for all kinds of mountain bikers with prices ranging from £500 to over £10,000.

All Specialized mountain bikes are ‘beyond gender’. Although they are technically unisex, Specialized tend to fit more female friendly saddles on the smaller size bikes and more male friendly saddles on the larger bikes. These can easily be swapped out to suit preferences.


Read the full guide to the Specialized MTB Range


Who are Specialized?

Specialized is one of the best-known quality bike brands in the world. Started by a group of riders in 1974. A fact which has guided their decision making ever since.

" Made for riders, by riders."

They strove to make the best quality tires when quality tyres weren't around. When people wanted to ride cruisers in the dirt, they made the first production mountain bike. When roadies wanted to go faster, Specialized doubled down on carbon and built their own wind tunnel.

Bikes like the Allez, Rockhopper and Stumpjumper have developed followings and reputations of their own. Specialized has a reputation for making high-end, high-quality bikes. Specialized bikes always look great with high-quality paint and sensible sizing hel0s you get the right bike each time. If you buy a Specialized bike you can be guaranteed it will do what it is supposed to and will last.


Find our more about Specialized bikes

Mountain Bike Buying Guide

Mountain biking is an incredibly diverse sport. Mountain bikes now come in three main flavours. They are XC, Trail and Enduro.

XC – short for cross country, are quick race bikes. They will normally have 29” wheels and come with 100mm of suspension. If you are mainly going to be riding bridleways and natural trails in the South East of England, where our shops are, an XC bike will be the quickest and most efficient option.

Trail – these bikes are designed to be pedalled up and down hill and for use on bridleways and natural trails, but also at dedicated trail centres. They normally come with 130mm or 140mm of suspension travel and can have either 27.5” or 29” wheels, but 29” is quickly becoming the norm. Trail bikes are good all-rounders. They won’t be as fast as an XC bike on the flat but they can handle a lot more challenging terrain, and a few jumps. If you plan on taking your bike to trail centres in Wales, or to the Alps, then a trail bike may be your best option.

Enduro – enduro racing is a thing in and of itself but many people buy enduro bikes for ‘aggressive’ trail riding and uplift days at places like Bike Park Wales. This generally means challenging downhill trails with some big jumps. With around 160mm of suspension travel enduro bikes can take some big hits. They are designed to be efficient enough to pedal up hills but really come into their own when pointed downhill. You get enduro bikes in either 27.5” or 29” wheel sizes as well as mullet setups of 29 at the front and 27.5 at the back.


Men’s and women’s mountain bikes

Nearly all the mountain bikes we sell are now unisex. All of the big brands have gradually stopped doing dedicated men’s and women’s bikes over the last few years. Instead they are focussed on producing bikes in a bigger range of sizes. So, for instance, the Trek Marlin 5 is a unisex bike that now comes in sizes from XXS to XXL large. This means it will fit riders from 4’ 5” to 6’ 5” and everything in between.


Read our full mountain bike buyers guide


Price Match at Cycles uk

We understand that price is important, so we regularly price-check our competitors to make sure we have the best offers available. We recognise that we will not always be the cheapest, so if you see the same product cheaper from any of our competitors then please get in touch via the form below and we will do our best to match any reasonable advertised price.

FRAMEAlloy 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 SHOCKX-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout S1:190x42.5mm, S2-S6: 190x45mm
FORKRockShox 35 Silver, Solo Air, 44mm offset, rebound adjust, TurnKey lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 140mm of travel
STEMAlloy Trail Stem, 35mm bar bore
TAPESpecialized Trail Grips
HANDLEBARSSpecialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 800mm width
FRONT BRAKETektro Gemini Comp, hydraulic disc, resin pad, 200mm
REAR BRAKETektro Gemini Comp, hydraulic disc, resin pad, 180mm
REAR DERAILLEURSRAM SX Eagle, 12-speed
SHIFT LEVERSSRAM SX Eagle, trigger, 12-speed
CASSETTE SRAM PG-1210 Eagle, 11-50t
CHAINSRAM SX Eagle, 12-speed
CRANKSETSRAM SX Eagle, DUB, S1:165mm, S2-S5: 170mm, S6: 175mm
CHAINRINGSSteel, 30T
BOTTOM BRACKET SRAM Powerspline
RIMS700c disc, double-wall alloy, sleeved, 32h
FRONT HUBAlloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
REAR HUBAlloy, sealed cartridge bearings, 12x148mm thru-axle, 28h
FRONT TYREButcher, GRID casing, GRIPTON® compound, 29x2.3"
REAR TYREPurgatory, GRID Casing, GRIPTON® compound, 29x2.3"
SPOKESStainless, 14g
INNER TUBESStandard, Presta valve
SADDLEBody Geometry Bridge Saddle, steel rails
SEATPOSTTranzX dropper, 34.9mm, XS-S: 100mm, M: 120mm, L/XL: 150mm Travel
SEAT BINDERAlloy, 38.6
Colours SATIN BLACK / SMOKE, SATIN BLAZE / BLACK
Sizes S1, S2, S3, S4, S5, S6
Brand Specialized
Model Year 2023
Barcodes 888818673889, 888818673896, 888818673902, 888818673919, 888818673926, 888818673933, 888818673940, 888818673957, 888818673964, 888818673971, 888818673988, 888818673995
SKUs / Part Numbers 93321-7001, 93321-7002, 93321-7003, 93321-7004, 93321-7005, 93321-7006, 93321-7101, 93321-7102, 93321-7103, 93321-7104, 93321-7105, 93321-7106

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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