This stylish black-on-black topcap & bolt from SQ Lab weigh only 7grams

if you just want something that works- go with what you know

Pros: Super technical and incredibly versatile

Pins: 10 replaceable pins per side

Hope RX Gravel Crank Arms - 68-73mm and BB86-92 - 30mm - Hope Direct Mount - 175mm - Silver Out of Stock This stylish black-on-black topcap &The 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