90 Tooth 2-1/8" Bore 5-Hole Sprocket for 1/2"x 1/8" Bicycle Chain
- 90 tooth bicycle chain sprocket.
- Made of aircraft-grade tempered (hardened) aluminum alloy.
- 14.62" OD
- 2.13" ID
- Five 5.25mm ID mounting holes.
- Fits onto our 5-hole freewheel item # FWM-205.
- Compatible with 1/2" x 1/8" bicycle chain (#410 chain).