Lightweight sprung type chain tensioner.
- Replaces conventional derailleur gear mech.
- Variable tension and position (can be used on suspension frames with varying chain length - or rigid frames.)
- Superlight CNC alloy body, pivot bolt and sealed pulley.
- Supplied with 2 springs to provide "pull up" or "push down" function.
- Superlight CNC alloy body.
- Sealed bearing CNC alloy pulley.
- Steel no-jump guide cage.
- Variable tension and direction.