SRM Origin Power Meter Composite DUB Aluminium Spindle Crankset Size:SRM Aluminium Chainring For Shimano 12s the GX Eagle rear derailleur

the GX Eagle rear derailleur delivers unprecedented shifting performance

The extremely soft rubber will give you excellent control and maximum comfort

Chain line: 50mm

Designed to fit neatly at the base of your suspension fork

Mineral Salts [Magnesium Bisglycinate

SRM Origin Power Meter Composite DUB Aluminium Spindle Crankset Size:SRM Aluminium Chainring For Shimano 12s the GX Eagle rear derailleur:: Please advise your desired crank arm length and chainring size upon checkout The SRM Origin PowerMeter named for having all components designed by SRM the original PowerMeter, is a modular concept PowerMeter offering limitless compatibility with exchangeable spindles and cranks, designed to fit any Road bike. Spindles, Cranks and Chainrings can be configured to suit your particular needs. If your needs change over time, they can easily be changed