XTR essential
M9101 12 spd cassette is one of 3 essentials for anyone picking a mix of xtr and xt components for a high end MTB build or upgrade. Other 2 are the crankset and chain. You'll see the greatest weight difference on cassette and crankset while the chain gives minimal weight savings but will contribute to better performance and longer life of the entire system. Very pleased with excellent availability of these great components through CambriaBike
Mark L.