When you're hitting the sort of leg speeds modern day BMX tracks demand, you want the reassurance that your chainring will run true lap after lap. The Box Components Cosine 4-Bolt Chainring is made in the USA from durable 6061 aluminium with large square shaped cutouts around the perimeter to help save weight, 3/32"" teeth with rounded tooth profile to reduce chain wear, laser-etched BOX logos and a 4x104mm bolt pattern.
Box Two Cosine Chainring
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Box Two Cosine Chainring / Black / 38T
Sale price$89.99 AUD
Box Two Cosine Chainring / Black / 39T
Sale price$89.99 AUD
Box Two Cosine Chainring / Black / 40T
Sale price$89.99 AUD
Box Two Cosine Chainring / Black / 41T
Sale price$89.99 AUD
Box Two Cosine Chainring / Black / 42T
Sale price$89.99 AUD
Box Two Cosine Chainring / Black / 43T
Sale price$89.99 AUD
Box Two Cosine Chainring / Black / 44T
Sale price$89.99 AUD
Box Two Cosine Chainring / Black / 45T
Sale price$89.99 AUD
