Aluminum Alloy Hollow integrated crankset, 2Pcs

- Lightweight hollow aluminum alloy construction reduces rotating mass, enhancing climbing efficiency and agile handling on trails.
- -machined 104BCD spider and 170mm arms deliver stiff power transfer, precise chain retention, and smooth 8-11s shifting.
- Fits standard 68/73mm threaded bottom brackets (BSA), with M14 pedal thread and M18 crank bolt for secure, tool-friendly installation.
- Chromoly steel spindle offers axial strength and resistance, ensuring long-term durability under aggressive pedaling.
- Complete 2-piece set includes left/right arms, bottom bracket, and disc bolts—a direct replacement for most mountain and road bikes.