Koozer | Koozer XM490pro Boost CR-Mo Steel Axle 32 Holes HG XD MS 10 11 12s Rear 5x141 QR 12x148mm THRU TA MTB Bicycle Hubs Bike Parts

XM490pro is evolved from XM490. It is adapted to advanced riders who like more intense riding. Its rear hub axle is changed from AL7075 to 30crmo steel, which improves the overall strength, but through structural optimization, it still maintains the same weight of XM490 also supply multi-specification: 32holes, front hub 5x100/15x100mm, rear hub 5x135/12x142/12x148mm with HG/XD/MS cassette body with tool-free conversion. >Material: Body: AL6061                  Axle: 30 CR-MO                  Endcap: AL7075                  Cassette body: AL7075>Spoke holes: 32>Gauge: 14>Sealed bearings: 4 pcs>Axle&Built-in size:5x135 QR/12x142mm Thru5x141 QR/12x148mm Thru boost>Brake interface: Disc IS (6-bolt)>Cassette body: 6 pawls/72 HD,HG/XD/MS, 8-12S>Weight: 320g>Colour: black/oil slick>Warranty period: 2 years Important note: for the explanation of common abbreviations, please check the specifications you need before buying. If you are not sure how to choose, please consult our professional salespersons, and we will give you accurate suggestions. We are not responsible for the losses caused by your own purchase mistakes. 28H/32H/36H = the hub has 28 spoke holes/32 spoke holes/36 spoke holes, can fit your 28/32/36 holes rim.QR = quick release version = rear 5x135mm = rear 10x135mm QRTA = through axle version = THRU = rear 12x142mmBoost = front 15x110mm or 20x110mm / rear 5x141 or 10x141mm QR /12x148mm TAHG/XD/MS = the hub's cassette body is compatible with Shimano MTB 8-11 speed cassette and Sram PG series 8-12 speed cassette(HG) / Sram MTB XG series cassette 11&12 speed(XD) / Shimano MTB micro spline 12 speed cassette(MS).