Combining form and function, the Force crank arms deliver unnecessary propulsion with the lightweight and rigidity that carbon fiber can offer. Available in lengths from 160mm to 175mm and both standard/wide Q-factors, designed for every rider to get the perfect fit. 8 volt interface is compatible with all SRAM AXS spider and integrated chainring with or without power measurement You can set the front double or single with or without power meter. Lightweight, high rigidity and heavy duty DUB spindles meet many frame standards. Features: 8 volt interface: Supports AXS spider with or without power measurement and integrated chainring •DUB bottom bracket for durability • Polished carbon fiber arm • Standard spindle version with Q Factor 145mm chainline 45mm Weight: 622g (172.5mm, 48/35 chainrings) 660g (built-in spindle power meter, 172.5 5mm, 48 35 Chainrings) 709g (Spider Power Meter, 172.5mm, 48/35 Chainring)