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Machined to the tightest tolerances, Onyx hubs use sprag internals for strength, extremely low rolling resistance and infinite points of engagement.

Steel bearings standard. Hybrid ceramic bearing option available.
  • Made in USA.
  • 7075 Aluminum Hub Shell
  • Adjustable preload
  • Titanium bolts
  • Extremely low rolling resistance
  • Silent instant engagement.
  • Radial lacing is not permitted on any Onyx Racing Products Hub.
  • Maximum Spoke tension is 120 KgF on all hub models.
All Onyx rear hubs also feature:
  • Patented sprag clutch mechanism
  • Instant clutch engagement during power stroke and instant disengagement when coasting
  • Silent operation before, during and after clutch engagement
  • Heat treat hardened stainless steel driver
  • Labyrinth seal interface between driver and hub shell
  • Adjustable side load
  • Grease service temperature range of -58F (-50C) to 248F (120C)
  • Compatibility with Shimano Hyperglide compatible cogs



Machined to the tightest tolerances, Onyx hubs use sprag internals for strength, extremely low rolling resistance and infinite points of engagement.

Steel bearings standard. Hybrid ceramic bearing option available.
  • Made in USA.
  • 7075 Aluminum Hub Shell
  • Adjustable preload
  • Titanium bolts
  • Extremely low rolling resistance
  • Silent instant engagement.
  • Radial lacing is not permitted on any Onyx Racing Products Hub.
  • Maximum Spoke tension is 120 KgF on all hub models.
All Onyx rear hubs also feature:
  • Patented sprag clutch mechanism
  • Instant clutch engagement during power stroke and instant disengagement when coasting
  • Silent operation before, during and after clutch engagement
  • Heat treat hardened stainless steel driver
  • Labyrinth seal interface between driver and hub shell
  • Adjustable side load
  • Grease service temperature range of -58F (-50C) to 248F (120C)
  • Compatibility with Shimano Hyperglide compatible cogs

ORP-VESP-CL-R-1

Onyx Racing Vesper MTB Centerlock Hub - Rear



Spoke Count



Availability and stock levels vary by color & specification, please check each color below for stock information. All ONYX hubs are built to order.

Machined to the tightest tolerances, Onyx hubs use sprag internals for strength, extremely low rolling resistance and infinite points of engagement.

Steel bearings standard. Hybrid ceramic bearing option available.
  • Made in USA.
  • 7075 Aluminum Hub Shell
  • Adjustable preload
  • Titanium bolts
  • Extremely low rolling resistance
  • Silent instant engagement.
  • Radial lacing is not permitted on any Onyx Racing Products Hub.
  • Maximum Spoke tension is 120 KgF on all hub models.
All Onyx rear hubs also feature:
  • Patented sprag clutch mechanism
  • Instant clutch engagement during power stroke and instant disengagement when coasting
  • Silent operation before, during and after clutch engagement
  • Heat treat hardened stainless steel driver
  • Labyrinth seal interface between driver and hub shell
  • Adjustable side load
  • Grease service temperature range of -58F (-50C) to 248F (120C)
  • Compatibility with Shimano Hyperglide compatible cogs
  • AVT.Bike is an authorized ONYX Racing Products dealer and proud to carry one of the largest selections of ONYX products available online and shipped anywhere in the world.
  • ONYX hubs are available in 23 standard in stock colors, as well as a limited edition color of the month.
  • All ONYX Hubs are manufactured in the USA and come with ceramic bearings as standard.
    ONYX rear hubs feature a unique silent free hub with instant clutch engagement.
  • If you have any technical questions at all on ONYX Racing Products please contact us and we'll be pleased to help you out!
Available For Pre Order.
Ships In Approx 2 Weeks.
Available For Pre Order.
Ships In Approx 2 Weeks.
Available For Pre Order.
Ships In Approx 2 Weeks.