• Anti chain-suck device
• Allows the front derailleur to be adjusted for strong downshifts
• If not using front derailleur the device can act as a chain guide
Option | Barcode | Manufacturer's Part Number | Vendor Number |
---|---|---|---|
28.6mm | 072774162291 | 16229 | JBI-16229 |
31.8mm | 072774162307 | 16230 | JBI-16230 |
34.9mm | 072774162314 | 16231 | JBI-16231 |