Single Speed Kit is the creative product for riders as they want to change speed either 16T or 18T.  Riders simply switch the spacers to match chainline.  It is composed by AL7075 also fits Shimano 9, 10 and 11 speed hub to convert multi-speeds cassette into single speed.  The single speed kit includes 2 spacers, a lock ring (38mm) and 16T & 18T sprockets.

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• Material: AL7075
• Include: Two spacers, 16T & 18T, and a lock ring
• Color: Black and Red