Cyclo Crank Shorteners

Customer Reviews (1)
5 / 5| Write your review
£12.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
These are designed for older style steel cranks, they reduce the crank length by around 20mm, they can not be fitted to alloy cranks without severe modification.
Product Reviews (1)
Questions & Answers (3) Q & A
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Product Reviews (1)
Overall Product Rating 5 / 5
Very useful, but read the text
By Paul Elliott
04 Jun 2020
5 / 5
I recommend this product
ConsNeeded plenty of elbow grease!
ProsCheapest solution for short tandem cranks
Very useful thing, made the back of my tandem suitable for a 9 year old.

As it says on the information, they do need serious modification to work with alloy cranks, but it is possible if you're confident working with metal and take your time.

Questions & Answers (3)
Can I use this with shimano exage?
01 Feb 2022
Hi, I have a tandem with a 1980’s Shimano exage groupset- straight crank arms, would these be suitable please? Thank you Dave
Thank you for your enquiry, they are only suitable for steel crank arms
Are these for standard 9/16
14 May 2020
Just checking as the text mentions steel cranks, some of which need 1/2
Hi, yes they are 9/16. Thanks
30 - 32 or 34 Teeth Chinrings to suit Thorn cranks
09 Jan 2018
Can i just get 30-32 or 34 Teeth Chinrings to suit Thorn cranks that i purchased from you thank you
Hi there,

We only supply the sets of 3, for replacement you can either buy a set of 3 again or use something from Middleburn or TA Specialities.