The Ninja C riveter stores inside the handlebars so that nothing extra interferes with the graceful curves of your bike, yet the tool is easily accessible. The riveter is designed for up to 11-speed chains including the chain hook. Designed for: up to 11 speed chains Imbus: 4 mm Tool material: hardened steel Body material: light aluminium Mounting: handlebar ends Handlebar restrictions: minimum 70mm straight part of handlebar end, handlebar diameter ø16.5 - ø20 Dimensions 8.6 x 2.3 x 2.3 cm (rivet) 8.5 x 2.3 x 2.3 cm (hook) Weight 77 g Art.No. TNJ-C