12 splines, 22.6mm diameter fits Shimano, Sachs Aris, Sun Race, DNP Epoch, and other 5–10 speed freewheels. The FR-1.3 includes an enlarged thru-hole to accommodate 14mm axles.
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953 Ritchie Highway Arnold, MD 21012
Phone: (410) 544-3532
Store Hours: Mon-Fri 10-7, Sat 9-6 & Sun 11-5