BX315R Gravel/MTB Straight Pull Centrelock Rear


You can think of this hub in two ways: it’s the straight pull, centrelock version of the best selling MTR12 MTB hub and also as a tougher version of the popular BX312R, thanks to its larger flanges and Bitex’s larger (54pt) diameter ratchet with larger pawls.

This makes it a good, tough option for gravel riding or cross country mountain biking.

Easily converted between a range of axle interfaces and freehub bodies, available in 24, 28 and 32 hole counts. Suitable for 6 bolt rotors only. 54pt freehub engagement, TPI bearings – 3×6902 and 1×6802 as standard (with Shimano 11spd freehub).

Please note for Microspline or N3W freehub body options you MUST also purchase the microspline upgrade separately by clicking here.

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Additional information





Axle interface type (Rear)


Freehub Body (54pt)

Shimano 11 speed (standard), Shimano 11 speed (Steel), Shimano Microspline, SRAM XD, SRAM XDR, Campanolo N3W (please purchase upgrade)