Crankless spider
 

[Closed] Crankless spider

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 Tim
Posts: 1091
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Topic starter
 

Indulge me please 😉

For a project I may require a way of mounting chainrings to a BB axle without a crank.

Does anyone know of a spider that mounts separately to the crank? Maybe something for a jackshaft / recumbent / insert other freakbike type setup?

Cheers

Tim


 
Posted : 28/03/2022 6:17 pm
Posts: 20787
 

Pinion chainrings/spider?

Other gearbox brands maybe?

Or one off an ebike motor?


 
Posted : 28/03/2022 6:27 pm
Posts: 16372
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Any chainset and a hacksaw?


 
Posted : 28/03/2022 6:32 pm
Posts: 3790
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Profile do chainrings that spline fit to the 48 spline Profile BMX axles. Would that work, or do you need a spider?

Edit - they do spline drive spiders too.

https://www.profileracing.com/product/spider-spline-drive-double-triple/


 
Posted : 28/03/2022 7:17 pm
 Tim
Posts: 1091
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Topic starter
 

Sillyoldman - that’s perfect. Cheers


 
Posted : 28/03/2022 8:32 pm