Chain tensioner with a double pulley structure for installing Shimano Alfine speed hubs on frames with vertical dropouts.
Compatible with the CS-S500 sprocket for internal gear hubs.
Note: Under “Attachments” you will find an instructions manual with informations about adjusting the tensioner.
Specifications
| Smallest Sprocket | 18 |
|---|---|
| Chain Guide Mounting Location | Derailleur Hanger |
| Chain Guide Accessories | Lower Guide |
| Rear Derailleur Max. Teeth | 20 |
| Max. Chainring Spread Teeth | 16 |
| Rear Derailleur Version | Chain Tensioner |
| Material | Body: Aluminium Pulleys: Plastic |
| Compatible chains | CN-HG73, CN-HG71, CN-HG53 |












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