Conversion kits that allow riders to switch from a geared rear end to a single speed set up without buying a new wheel. 190g. Adjustable pitch. Designed to be used with geared chains. Do not use with a coaster brake or fixed gear. Includes spacer kit with 16t cog, DMR's Simple Tension Seeker chain tensioner and freehub lock nut. PU pulley uses sealed bearings. Stainless steel body provides strength and stiffness. Works in conjunction with frame's derailleur hanger and hub axle. Item Specifications: Cassette Body Type, Shimano 9/10/SRAM,.
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