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Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
With a JIS square taper
5mm 32mm +/-1
They are cur
Available in 12T to 18T
There are 48 points of engagement: all pawls engage simultaneously
Box Cosine 4-bolt Chainring front rim With a JIS square taperMade in the USA from 6061 T6 aluminum alloy, Cosine chainrings are round and true. They fit 104 BCD four bolt cranks. Available in black anodized with laser etched graphics in 38 45 tooth sizes.
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