AmazonMaterial: CNC aviation aluminium alloy, rustproof Direct replacement for an original BROMPTON chain tensioner Converts any speed Brompton to a single/2/3/6 speed Size: 18x13x6cm / 7.1x5.1x2.4 inch. Weight: approx 128g Package Includes: 1 x Chain Tensioner
Material: CNC aviation aluminium alloy, rustproof Direct replacement for an original BROMPTON chain tensioner Converts any speed Brompton to a single/2/3/6 speed Size: 18x13x6cm / 7.1x5.1x2.4 inch. Weight: approx 128g Package Includes: 1 x Chain Tensioner