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: 28/32

>Gauge: 14

>Sealed bearings: 4 pcs

>Axle&Built-in size: 5x141 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

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 QR

TA = through axle version = THRU = rear 12x142mm

Boost = front 15x110mm or 20x110mm / rear 5x141 or 10x141mm QR /12x148mm TA

HG/XD/MS = the hub's cassette body is compatible with Shimano MTB 8-11 speed cassette and for Sram PG series 8-12 speed cassette(HG) / for Sram MTB XG series cassette 11&12 speed(XD) / for Shimano MTB micro spline 12 speed cassette(MS).