All are compatible with either standard 190x51mm or 190x45mm metric shocks

Materials: Made from machined anodized aluminium with a heat-treated steel spindle

With a classic varnished wooden handle and a chromoly head

Brake/Compatibility: International Standard 6-bolt disc mount

DaBomb RL-X Single Speed Chain Tensioner - Single Speed Out of Stock All are compatible with eitherDa Bombs roots are in Dirt jumping and BMX, that's why they decided to give back and create the RL X chain tensioner. Single Speed Chain Tensioner with micro adjustable roller system. Its multi segment tension adjustment and double sprung guide design create a frictionless, low vibration and noise free chain tensioning system. Features: Material: CNC'd Aluminium cage and hanger weight: 121. 5g Dual sprung tension Micro adjustable