155mm cranks
 

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[Closed] 155mm cranks

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 mrl
Posts: 497
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Topic starter
 

Anyone have any good ideas for 150-155mm cranks for a kids bike. Just took of the SX powerspline 165s that are a bit long. All the options look to be square taper (would the square taper axle be the same length as the powerspline/isis one?) And a bit rubbish.

Would ideally like some two piece/hollowtech but can only find expensive US ones.

So any ideas? Cheers


 
Posted : 03/05/2022 12:05 pm
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https://singletrackmag.com/forum/topic/155mm-cranks/


 
Posted : 03/05/2022 12:12 pm
 mrl
Posts: 497
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Topic starter
 

I found that link. They are the square taper sets and some of the more exotic stuff I found. Just wondering if there are any better options.


 
Posted : 03/05/2022 12:17 pm
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https://www.kingkog.co.uk/products/sram-crank-nx-gxp-1x11-155mm-black-w-32t-x-sync-chainring

Used these for my youngest on both MTB and Road with no problems.


 
Posted : 03/05/2022 12:42 pm
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I've just fitted these Jet BMX , yeah they're square taper, but they're bloody cheap and from the same factory / supplier that makes the kids Racing ones that are twice the price.

They're a normal 4x104BCD so rings are ten-a-penny on eBay and light enough, plus a good square taper BB lasts forever.


 
Posted : 03/05/2022 2:18 pm
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I fitted those Jet Cranks too no problems at all with them


 
Posted : 03/05/2022 2:25 pm
 mrl
Posts: 497
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Topic starter
 

Will try the jet one. The NX look ok but the jet will be half the price. Any idea on the comparison of powspline to square taper axle length. Or how to work out chainring position with square taper?


 
Posted : 03/05/2022 5:07 pm

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