NoBoss Crank Arm Set


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Profile’s Race Cranks with no bosses. Compatible with the Profile Spline Drive Sprocket and Spiders. 160mm, 165mm, 170mm, 175mm, 180mm, and 182mm only. Price is for both left and right arms.

Crank Arm Weight (per set).
145mm: 493g/17.35oz
160mm: 527/18.55oz
165mm: 549g/19.35oz
170mm: 550g/19.4oz
175mm: 560g/19.75oz
177mm: 565g/19.9oz
180mm: 578g/20.4oz
182mm: 584g/20.6oz
185mm: 588g/20.75oz
190mm: 601g/21.2oz

Additional information

Color / Size

160mm Black, 165mm White, 165mm Black, 165mm Chrome +$11, 170mm Black, 170mm Chrome +$11, 175mm White, 175mm Chrome +$11, 175mm Black, 175mm Raw, 180mm Black, 180mm Chrome +$11, 182mm Black, 182mm Chrome +$11


We are taking precautions to protect our employees and follow CDC and state guidelines. In the meantime, our machine shop is still running, we're here to assist you and we'll be shipping product to help support bike shops during this difficult time.