SHIMANO Deore XT 12-Speed MTB Cassette Sprocket (CS-M8100-12) With its BEAM SPIDER construction, the new SHIMANO DEORE XT M8100 12-speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. Using SHIMANO's new MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, these 10-45 and 10-51T cassettes deliver advanced shifting performance. FEATURE ~ New shift ramp designs provide the fastest, smoothest shifts by HYPERGLIDE+ ~ Lighter and stiffer construction ~ Reduces cassette inertia resulting in faster acceleration and increased chain security ~ 10T lowest sprocket realized by new FREEHUB body construction BENEFIT ~ Definitive shifting performance MICRO SPLINE ~ Wide range and close step 12-speed drivetrain PRODUCT SPECIFICATIONS MODEL NO : CS-M8100-12 SERIES : SHIMANO DEORE XT M8100 Series Combination : 10-12-14-16-18-21-24-28-32-36-40-45T, 10-12-14-16-18-21-24-28-33-39-45-51T, -, -, -, -, - Combination name(Group name) : 10-45T, 10-51T Compatible chain : HG 12-speed Speeds : 12-speed Spider arm_QTY (pcs) : 1 Type : HYPERGLIDE+ Please visit our website at http://www.ecomtb.com.my OR https://shopee.com.my/eco_mtb ** There is 1-3cm errors due to manual measurement. Please kindly understand. ** Actual product colour may slightly vary due to photographic lighting sources or your monitor settings. ** WE DO NOT DO COD ** ONLINE ONLY ** We support original products only. ** PRICE INDICATED IS ALREADY BEST PRICE, EXCLUDE COURIER