Optimize your bicycle transmission with P2R 9-10V rollers: perfect tension and guidance for smooth, precise pinion changes.
Rear derailleur hubs play an essential role in the bike's transmission. There are two rear derailleur pulleys that provide tension and guidance for the chain during gear changes. The top roller is called the "puley" and moves the chain, while the bottom roller, called the "string", tensions the chain. The derailleur rollers must be in perfect condition to ensure precise and smooth gear changes.
Brand | P2R |
Supplier reference | 32981 |
Color | silver/gold |
Main color | Silver |
Stability | Cycling |