Brompton Spider Crankset - 50T QCRANKSET-SPI-50
£90.00
was
£90.00
was
Manufacturer :
SJS Cycles part number :
Manufacturer part number :
Details
Replacement 50T spider chainset as found on post-2013 bikes.
Lightweight but strong construction.
Removable chainring - easy to replace when worn or change gear ratios.
Weight: 426g (Right) , 235g (Left) .
Uses a 119mm JIS bottom bracket.
Suitable for older, pre 2013, bikes but will require a replacement bottom bracket.
Please note Brompton have selling restrictions to some countries who have their own dealers. If you are unsure please contact our sales team.
Lightweight but strong construction.
Removable chainring - easy to replace when worn or change gear ratios.
Weight: 426g (Right) , 235g (Left) .
Uses a 119mm JIS bottom bracket.
Suitable for older, pre 2013, bikes but will require a replacement bottom bracket.
Please note Brompton have selling restrictions to some countries who have their own dealers. If you are unsure please contact our sales team.
Specification
Downloads
Download File
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Product Reviews (1)
Overall Product Rating 5 / 5
Great original Brompton part
By Nick Watton
27 Dec 2018
5 / 5
I recommend this product
ConsNot easy, requires specialist tools
ProsGood upgrade for an older Brompton
Upgraded an older Brompton to this, which required a change in bottom bracket, a good few specialist tools, and a fair bit of effort. However, whilst a shop fitting would have cost the same as the tools, I get to keep the tools and have learned more about the bike, so definitely worth it!
Questions & Answers (2)
To use this to replace the crankset on a 2007 Brompton, which bottom bracket would I need?
By Daniel
28 May 2020
SJS Customer Service:
SJS Cycles part number : 31207 is the Brompton spec one, but you can use any 119mm JIS 68mm square taper.
Thanks - 28/05/20
Thanks - 28/05/20
Can I use an 1/8 inch chain?
By Charles Ferrar
11 Jun 2019
My brompton is a 6 speed with the SRAM rear hub (2007). I'd prefer to use an 1/8 inch chain to be that bit lighter. Will that work OK with this chainwheel?
Thank you. Charles Ferrar
(and I am aware of the change in bottom bracket)
Thank you. Charles Ferrar
(and I am aware of the change in bottom bracket)
SJS Customer Service:
This is a 3/32 chainwheel, modern Bromptons use 3/32, yours may well be 1/8 chain (but 1/8 is not lighter) a 1/8 chain will run on this chainset if you HAVE to use it because your hub sprocket is 1/8. If you are still in doubt email directly our expert ([email protected])