AR-01 · Disc Brake Hubs

Fast engagement.
Quiet confidence.

258g per pair, 60-tooth ratchet, 5-pawl engagement, and full-complement NTN bearings for road, gravel, and mini velo builds.

The hidden accelerator

Every surge starts at the hub.

AR-01 is built for riders who notice the half-beat between pressing on the pedals and the bike moving forward. Short pickup, smooth bearings, clean service.

258g
Pair weight
60T
Ratchet ring
6deg
Engagement angle
Shop AR-01 hubs →
Compatibility

AR-01 specs

AR-01 Road
AR-01 Mini Velo
AR-01 Wheel Build
Best forRoad and gravel disc wheel buildsPerformance mini velo front axle fitmentsPolaris and custom carbon wheelsets
Weight / Build258g pair258g pairRim dependent
Engagement60T / 5-pawl60T / 5-pawl60T / 5-pawl
Axle12mm thru-axle15mm front optionRoad / gravel
Spoke Interface24H straightpull24H straightpull24/24H
BearingsNTN full-complementNTN full-complementSapim CX Ray
Frame Spacing100/142mm100/135mm optionCustom lacing available
Front Bearings6803 x26803 x2Built in Singapore
Rear Bearings6803 x1, 6903 x1, 6802 x26803 x1, 6903 x1, 6802 x2AR-01 included
FreehubShimano HG standardConfirm before orderAsk for freehub options
60-tooth engagement

It picks up before you think about it.

A 60-tooth ratchet with five pawls gives AR-01 a 6-degree engagement angle. That matters when you accelerate out of corners, restart after a climb, or keep pressure on over uneven roads.

The hub stays mechanically simple and serviceable, while NTN full-complement bearings keep the system smooth under load.

Build options

Standalone hubs, or the heart of a full wheelset.

Buy AR-01 as a hubset for your own build, or use it as the hub platform for Polaris, Polaris SL, Zenith, or a custom Ascent wheelset.

Need SRAM XDR, Campagnolo N3W, or a specific axle setup? Check compatibility before ordering and we will point you to the right configuration.