Derailleur cable tensioner Pro 4mm (x2)Optimize your derailleur's performance with high-quality Jagwire Pro 4mm derailleur cable adjusters (x2).
Derailleur Adjusters - Allows you to safely adjust derailleur cable tension on the fly. - Compact design improves performance when used on curved housing segments - Fits 4mm housings
| Brand | Jagwire |
| Supplier reference | JA8019 |
| Color | black |
| Color | Black |
| Quantity per product | 2 |