ZTTO | ZTTO SLR3 Ultimate 12 Speed 10-50T 10-51T XD Cassette Red-silver MTB 12S 9-46T 9-50T 10-46T ULT XD Sprocket 12V K7 282~298g

ZTTO MTB Ultimate SLR3 12 Speed XD CassetteUltraight SLR3 XD Freewheel Material:high strength steel+aluminum alloyCompatibility: MTB XD HubRange& weight:9-11-13-15-18-21-24-28-32-36-40-46T(285g±15g)9-11-13-15-18-21-24-28-32-36-42-50T(297g±15g)9-11-13-15-18-21-24-28-32-38-44-51T(304g±15g)10-12-14-16-18-21-24-28-32-36-40-46T(295g±15g)10-12-14-16-18-21-24-28-32-36-42-50T(302g±15g)10-12-14-16-18-21-24-28-32-39-44-51T(306g±15g)Attention:Because of process improvement issues, from the second batch onward, there are slight variations in the weight of batch of products.The weight difference is no more than 15 grams.The product option image displays a different current weight.Thank you for your understanding.XD Freehub CompatibleCompatible with mainstream 12 speed shifter. Mechanical kits are easier to adjust, electronic kits may require fine-tuning using advanced customization featuresThe material of high tensile steel and aluminum alloy made by the technology of quench-temper hardening, makes it more durable and has extreme resistance to abrasion.ZTTO SLR3 - The latest tooth shapeI would say this is the biggest upgrade ever, both in terms of smoothness and noise level. It is truly a comprehensive evolution to remain lightweight while still having excellent strength.Hollow design,steel+aluminum alloy combined,ultimate weightWe adopted the hollow design to reduce the weight to some extent.ZTTO Less than 310g ! The world's lightest mass-produced cassette challengeAs a comparisonM9101 376g ( 3 aluminum + 6 titanium + 3 steel)10-51T=510%rangeXG1299 370g (1 aluminum + 11 steel )XS1299 350g (3 aluminum + 9 steel )10-52T=520% rangeSuper light weight!!!9-46T=511% range9-51T=566% rangeUltralight WeightAbout 285g~306gMore advanced structureCompared to the previous generation XD, this time we have significantly changed the internal structure to make it stronger, more durable and compact.