- 7075 aluminium alloy cranks designed and manufactured in the UK.
- Unique 'Sweet Torque' spline and lockring fitting for bashrings ensures maximum pedalling response and no more stuck sprockets.
- Not compatible with screw on sprockets or front freewheel systems.
- Middleburn also produce electron microscopes and parts for the McLaren-Mercedes F1 team - so you know the quality is virtually second to none!
- Available in 170mm and 175mm arms, with Square Taper crank fitment only (ISIS are not produced any more).
- Cranks arms available in Black or Silver, both with machined Middleburn logo.
- Lifetime warranty against defects in materials or workmanship. Covers competitive DH, trials and jumping!
- Weight: 412g! (175mm ISIS crank arms only)
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Offset: 28mm
This product is for crank arms and lockring only. If you would like a bashring too we have a few different models available, click the images below.
If you purchase a complete crank setup we will assemble the cranks before dispatch free of charge. If you do not want us to do this please indicate this in the notes field.


Ensure that your pedals are tightened to at least 310 in-lbs (35 Nm) every 5 minutes for the first few rides. Before fitting, it's also a good idea to make sure your pedal axles are clean (a wire brush works well) then greased before installation.
Similarly, always check crank bolt torque is at least 310 in-lbs (35 Nm) every 5 minutes for the first few rides, then each and every ride after that.
Failure to keep your pedals or crank bolts tight as described above is likely damage your cranks and this will not be covered under warranty.

Average Rating (Based on 1 customer rating)
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Perfect cranks!

Posted by Cai on 09/01/2011
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Light, strong and well designed. This are easily the perfect trials cranks if you're running a rear freehub! Shame there isn't a front freewheel version of these too really :/