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Square taper crank with less than 32 teeth

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Square taper crank with less than 32 teeth

Old 08-10-16, 09:35 AM
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redboy1
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Square taper crank with less than 32 teeth

Are there any square taper cranks available with less of than 32 teeth? Who would sell something like this?
A neighbor has a four wheel pedal cart and is trying to outfit it with a smaller crank so the kids can more easily pedal through the yard. Thanks.
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Old 08-10-16, 10:12 AM
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dr_lha
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I've never seen one. Maybe look into changing the size of the cog at the back of the cart?
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Old 08-10-16, 10:32 AM
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32T is the smallest for 104 BCD

Not square-taper, but SRAM is supposed to offer an integral-ring 26T crank in the XX1

Cyclotouriste crank arms are 50.4mm bcd, but the smallest "outer ring" TA makes is 40T.

The 74 bcd ring stack on a Cyclotouriste can go down to 24T.
Probably not cost-effective, but there might be a way to turn a TA outer ring into a chain guard and mount a small ring to the inner position.

wait a minute - try these guys Cranksets - New and Vintage ? Bespoke Chainrings
They should be able to make you a 50.4mm bcd chainring in whatever you want (down to 24T)
Cranksets - New and Vintage ? Bespoke Chainrings
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Old 08-10-16, 10:36 AM
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Originally Posted by redboy1 View Post
Are there any square taper cranks available with less of than 32 teeth? Who would sell something like this?
A neighbor has a four wheel pedal cart and is trying to outfit it with a smaller crank so the kids can more easily pedal through the yard. Thanks.
Sure, any number of triple cranks can be equipped with a 24T granny ring. Even if that's not what you had in mind, it should do the job.
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Old 08-10-16, 10:57 AM
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Old 08-10-16, 11:18 AM
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Originally Posted by Dan Burkhart View Post
good job
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Old 08-10-16, 11:27 AM
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A cheap mountain bike crank sounds good. I suppose this would work with the existing spindle?
Spindles are in different lengths to fit the bike bottom bracket.
Sorry, I've never worked on square taper cranks.

Shimano Acera 42-32-22 triple, square taper. $34 !



Some smaller cranks for road bikes are available. Way more expensive, though.

Velo Orange Grand Cru 30/46

White Industries VCB cranksets and chainrings for road bikes. inner ring choose 24 to 38, outer choose 38 to 52
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Old 08-10-16, 12:10 PM
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Stronglight 99 was 28t, 86 BCD so a 28 50 double was possible,Copied in Asia, Ditto TA, 26 and larger .

Now there are 9t BMX hubs and so Tiny chainring'd cranks too.

Last edited by fietsbob; 08-10-16 at 12:14 PM.
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