SKU Description
- Fits 20-spline tool fittings with an approximate outer diameter of 21.6 mm
- Fits Atom®, Regina®, splined Zeus®, and some Schwinn®-approved freewheels
Product Description
FR-4: 20-spline/21.6mm OD tool fitting.
Fits Atom®, Regina®, etc. freewheels.
Product Specifications
Product application
FR-1.3