In the box: Preload collar

Max runtime for red light is up to 20 hours under low power constant mode and 50 minutes under 105 lumen max brightness mode

Clamp options: Only available in the two leading size standards

strongest crankset available

Hope RX Gravel Crank Arms - 68-73mm and BB86-92 - 30mm - Hope Direct Mount - 175mm - Purple Virtual Parent In the box: Preload collarThe RX Crankset is Hopes latest step into the Gravel and Road world, following their successful RX4 callipers and RS4 hubs. A two piece hollow design allows for the removal of any unwanted material increasing stiffness and reducing weight. Features: Two piece hollow construction Fully CNC machined for precise material removal 30mm aluminium axle Compatible with almost every BB system with our extended range of BBs 170, 172. 5 and 175mm arm length