Revolution AR-01 Disc Hub

Light, Smooth and Responsive disc brake hubs that give you an unfair advantage.

Experience the next level of responsiveness with Ascent's latest disc hub. From a full complement of NTN bearings, to the tested-and-proven 60 Tooth, 5-pawl engagement system, the AR-01 pulls no punches in bringing you race-grade performance for your wheels.

Light Weight

At just 310g, the AR-01 helps you shave weight from your wheels, allowing you to climb with ease. A set of Polaris 42 wheels weighs just 1.3kg when laced to the AR-01.

Smooth As Butter

Full complement of Japanese NTN LLB bearings allow your wheels to glide through your rides and sail to victory.


The 60 tooth engagement means explosive engagement and exemplary power transfer, perfect for attacking the peloton and breaking away.


I have subjected the wheels and hubs to a year of intensive rides and numerous climbs. I have to say that the rides have been not only smooth, fast, but very comfortable too. The wheels are able to hold the speed very very nice even though they are 42mm deep. Amazing wheels.

S. Iskandar

The finish is top-notch, reminding me of Shimano's quality. Performance-wise, they do their job impeccably with smooth and reliable braking. No complaints here; I highly recommend them to anyone looking for a stylish and effective solution at a great value!

Darren L.

Felt easier to climb hills with heavier gears - better acceleration and better for climbing slopes. I can do an extra order or two with these wheels and hubs.

KT Lim

Roll incredibly smoothly with the NTN bearings with good stiffness through the oversized axles.
The Polaris 42 is lightweight and spin up fast, incredibly stable in crosswinds, fast and comfortable with the ability to run wider tyres without compromising aero profile. Also tough and durable - have survived pretty rough gravel/single track without any issues.

Jonathan Q.

I found the Polaris 42 to be very stable, fast and light! They are quick on climbs and descents, and in windy conditions. I thought the AR-01 hubs felt very smooth and engaging. Overall, an excellent wheel that performs better than wheels in its price range!

AR-01 At A Glance

Main Features

  • Full complement of NTN LLB bearings for smoothness and reliability
  • Industry-standard bearing sizes mean easy maintainance and replacement.
  • 60T engagement with 5 pawls for rapid responsiveness and power transfer.
  • Weighs just 310g (Shimano freehub) - Comparable to the DT Swiss 240 (304g)
  • Compatible with both Thru Axle (100/142) and Quick Release (100/135), with 15mm Thru Axle for Reach Mini Velos
Product Deep Dive



Weight: 310g/pair (Shimano)
Spoke Count: 24/24
Spoke Type: Straightpull
Spacing: 100/142mm (Thru-Axle) and 100/135mm (QR)
Thru-Axle type: 12mm
Engagement Count: 60
Pawls: 5
Bearings: NTN LLB
Front bearings: 6803 x2
Rear bearings: 6803 x1, 6903 x1, 6802 x2


2 Yishun Industrial St 1
North Point Bizhub, #02-15
Singapore 768159


Mon/Tues/Thurs/Fri: 1–7pm
Wed/Sun: 1–5pm

Get directions