Description
Tonnycat vous propose :
C45 standard steel PBR crown 4507 - 520 de PBR
PBR, the experience from competition
With its long-standing experience in competition in collaboration with top teams, PBR offers a range of high-quality sprockets and crowns.
- High-quality 18NCD5 steel alloy
- Highly resistant to corrosion and abrasion
- Reduced friction
- Very strict manufacturing process















