Box One Single Speed Cogs Size:17T OS20 is NOT 22"

OS20 is NOT 22"

Minimizes risk of axial compression

Equipped with external slack adjustment

0 ISO: 451 Width ID: 23 Width OD: 28 Profile: 14

Available in 25

Box One Single Speed Cogs Size:17T OS20 is NOT 22"Box One Single Speed Cogs PRODUCT DESCRIPTION The new Pinion Cogs are offered in two ranges; CNC machined from long wearing 7075 T6 aluminum alloy and CNC machined chromoly. 3 32 cogs are available in 13 18 tooth sizes. Both types are designed to fit Shimano compatible cassette hubs. Both have a 5mm wide inner base, giving more solid interface with cassette body. Alloy cogs are anodized black with laser etched graphics, while chromoly cogs are electro