*Designed specifically for frames using 47.5mm chainline. The RX Crankset is our latest step into the Gravel and Road world, following our successful RX4 calipers and RS4 hubs. A two-piece hollow design allows for the removal of any unwanted material increasing stiffness and reducing weight. And all proudly designed, manufactured and tested in Barnoldswick, UK to the same standards as our MTB cranks, for confident use on or off road. KEY 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 BB's - 170, 172.5 and 175mm arm length available - Arms available in black, silver, bronze, blue, red, purple and orange - Self-extracting axle/arm interface - Weight 518g (172.5mm and 5 bolt spider, w/o BB) - Compatible with direct mount chainrings or five-arm 110BCD spider