Feel the Snap.

Ride the Power.

75T ratchet engagement. Built for MTB riders.

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Choose Your Hub

S10 J-bend
S10 J-bend
S60 Straight Pull
S60 Straight Pull
Commonly used repair parts
Spare Parts

ENGINEERING

Inside the 75T ratchet system.

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koova- engine

COMPATIBILITY

Find the right hub for your bike.

CHECK FIT

RIDER TESTED

Real hubs. Real trails. Real feedback.

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What Riders Say

Hubs look amazing, paired with DT541—feel great on trails!
—  DH4ALL
buen sonido y Exelente tiempo de respuesta al pedaleo
—  downhill_tony
Es una transmisión de potencia deliciosa y sensaciones muy agradables al escuchar la maza
—  CHICHARO (Cesar Correa)
Love the buzz and the power transfer. Koova feels bombproof.
—  Alex_nb_
Solid engagement, smooth, responsive feel—great performance on trails.
—  mtb_skills23
buen sonido y Exelente tiempo de respuesta al pedaleo
—  Bryan
Smooth shifting and crisp engagement. The feel and precision are spot on.
—  Kobędzowski
Koova hub look quite nice and the sound is next level.
—  dangl_mtb
Loudest hub l heard in my life!
—  j_semenas

Hub Tech Explained

Does a Loud Ratchet Freehub Mean More Drag? Explained

Does a Loud Ratchet Freehub Mean More Drag? Explained

This article focuses only on ratchet-style freehubs. If your hub uses pawls, the mechanics are different. Many riders assume a...

Hub Engagement: 75T Conical vs Standard Ratchet

Hub Engagement: 75T Conical vs Standard Ratchet

Hub engagement defines how quickly power transfers to the wheel. Learn the differences between 75T conical ratchets and standard ratchet...

From Pawls to Ratchets: MTB Hub Engagement Systems Explained

From Pawls to Ratchets: MTB Hub Engagement Systems Explained

Throughout bicycle development, the hub has remained a critical part of the drivetrain. As riding styles evolved—especially in mountain biking—the...