ZTTO Ultralight CNC XD Cassette Teal ULT MTB 12 Speed 10-50T 10-51T 9-46T 10-46T XD Cassette 12s XD Sprocket 12V k7 282~298g

ZTTO SLR Gen3 12s MTB XD CassetteUltraight Freewheel For XD HubMaterial:high strength steel+aluminum alloyCompatibility: mountain XD systemRange& weight:9-11-13-15-18-21-24-28-32-36-40-46T(282±10g) 9-11-13-15-18-21-24-28-32-36-42-50T(295±10g) 9-11-13-15-18-21-24-28-32-38-44-51T(295±10g) 10-12-14-16-18-21-24-28-32-36-40-46T(293±10g) 10-12-14-16-18-21-24-28-32-36-42-50T(298±10g) 10-12-14-16-18-21-24-28-32-39-44-51T(306±10g)XD Freehub CompatibleCompatible with mainstream 12 speed shifter.Mechanical kits are easier to adjust, electronic kits may require fine-tuning using advanced customization features.ZTTO Gen3 - 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 weightHollow design,steel+aluminum alloy combined,ultimate weightWe adopted the hollow design to reduce the weight to some extent.ZTTO Less than 299g ! 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 282g~298g More advanced structureCompared to the previous generation XD, this time we have significantly changed the internal structure to make it stronger, more durable and compact.8 colors available