Shimano "TL-FC21" Chainring Bolt Wrench
- Weight : 0.23kg / 0.51lbs
- Packaging Unit: 1 Piece
- Product ID (PID): 45904
- Product safety
Weight
Source: BMX Glossary
Printed: 10/29/2026
The Shimano "TL-FC21" Chainring Bolt Wrench is made for removing and fitting chainring bolts. It holds the chainring nut in place while you loosen or tighten the bolt with an Allen key.
According to US Pro it also fits the dust cap of the crank arm.
Facts: Shimano "TL-FC21" Chainring Bolt Wrench
- Contains: 1 chainring bolt wrench
- Extras:
- holds the chainring nut while you turn the bolt with an Allen key
- fits the dust cap of the crank arm














































