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Specialized Stumpjumper M4 '01

Specialized Stumpjumper M4 '01

Arguably , the best hardtail frame you can buy, with components to match.

No Longer Available

Product Description

Specialized's ultimate M2 Metal Matrix frame has now been superseded by M4 - a unique alloy of aluminium reinforced with silicon, magnesium, vanadium and copper.

Almost twice the strength of 6061, M4 is also more malleable. This allows Specialized to optimise the shape and wall thickness of every tube to engineer a world class frame that's light (3.3lbs), strong, yet surprisingly supple.

The frame then comes fitted with stellar equipment such as the Judy SL fork (half a pound lighter than XC) and - very unusual this on a production bike - the pedals most frequently recommended in near every mag review: Time after time.

The M4 has been so well received in these parts, it has been bought by an unprecedented number of Edinburgh Bicycle workers in its first year of production -Linda, Henry, Grant, Mike and Paul - all of whom were owners of respectable mountain bikes. They're all stoked with their M4s. Grant's reaction was typical. 'I didn't realise it would make such a difference. My previous bike weighed 26lbs which is pretty respectable, but the M4 at 22lbs is night-and-day better. It climbs hills with so little effort.'

Technical Data


Fully butted M4 Manipulated aluminium alloy


RockShox Judy SL. 80mm travel. Adjustable rebound.


Mavic 221 double wall alloy rims with machined sidewalls. 28h front, 32h rear)

 Specialized Micro Stout front hub. Specialized Custom rear with XT freehub body
 Specialized Team Control SL Pro front/Team Master SL Pro rear. Kevlar bead. 120tpi.


Shimano Deore LX Rapidfire Plus shifters

Shimano Deore XT rear / Deore LX front gears

 Specialized Strongarm 2 cranks 22/32/44

Time Alium step-in pedals


Avid SD-3R alloy V-brakes w/Avid Speed Dial 5 levers


Specialized flat double butted alloy handlebars & 10˚-rise Specialized Aheadstem

Saddle:Specialized Expert Mtn saddle with Body Geometry technology


Ritchey Expert alloy 30.9 x 350mm micro-adjust seatpin. AK binder bolt


13.5, 15.5, 17, 18, 19, 20.5"





Our suppliers reserve the right to change specifications and prices without notice. Edinburgh Bicycle Cooperative will do all it can to maintain prices and specifications on this web site, however we do reserve the right to change specifications and prices without notice. Similarly, despite the wonders of modern computers, it is realistic to expect the colour of any item bought to differ subtly from the image online.