ÆRA No. 1 product highlights:

  • UK designed and manufactured.

  • Designed for Road, Gravel and Cyclocross disc brake bikes.

  • Handmade in small batches in England.
  • Hubs & bearing covers machined from aerospace grade 7075-T6 aluminium.

  • Stainless angular contact bearings.

  • Ceramic bearings upgrade available +£200.

  • The perfect finishing touch to any bespoke build.

  • Super smooth and beautifully finished.

  • Low maintenance & easy serviceability.

  • Matching No. 1 bottom bracket also available.
  • Excellent durability.

  • Understated and complementary finishes.

ÆRA No.1 Hubs

Performance is at the beating heart of our timeless No. 1 hubs. Designed, engineered and assembled in the UK, our top tier hubs perform faultlessly in all conditions and are perfect for the varied UK weather that we know and love. With an elegant yet highly functional design the ÆRA No. 1 hubs are the perfect choice for your bespoke build and are available in three hard wearing colour options.


Complement your ÆRA No.01 hubs with a choice of ÆRA carbon or alloy rims.

Price per pair:

  • £ 1149 – stainless steel bearings
  • £ 1349 – ceramic bearings – get faster with use


  • Brevet black anodised
  • Baroudeur Blue anodised
  • Ceramic coated (adds £195)



We use only the highest quality bearing across our entire range of products. Our No. 1 hubs come with stainless steel bearings as standard, however ceramic bearings are also available on request. Ceramic bearings have higher strength and the increased hardness of the bearings will give a longer lifespan and superior corrosion resistance. The bearings also get faster with use.

The Devil Is In the Detail

The ÆRA No. 1 is a four-season hub that is designed and manufactured in the UK, home to some of the most demanding riding conditions. Combining style and durability in equal measure, the No. 1 hub is the ultimate bespoke build upgrade.

We use 28 spokes both front and back for added strength over mixed terrain. Our spoke holes are countersunk to allow the head of a Sapim CX-Ray spoke to sit flush to the surface of the flange, optimising aerodynamics and aesthetics.

Colours & Finishes

The hub colour can be chosen to compliment any bike build. We offer the ÆRA No. 1 hub in anodised Brevet Black or Baroudeur Blue finish or with an extra tough Brevet black ceramic coating featuring a gold Æ logo. Bespoke finishes are also available on request.

To complete your custom bike project why not match the No. 1 hub with our N0. 1 bottom bracket.


You can specify your hubs to be compatible with Shimano/SRAM HG, SRAM XD or XDR. We use a 4 pawl design that provides you with 108 points of engagement, giving instantaneous acceleration.


Suitable for J-bend spokes

Available with 28 holes only

Centerlock rotors only. 6 bolt adapters are not recommended

12mm Thru axle design

Rear hub 142mm wide with 12mm thru axle

Front hub 100mm wide with 12 mm thru axle

4 pawls with 108 points of engagement

Weight: Front 131g, Rear 284g, combined weight 415g.

Available with Shimano/SRAM HG, SRAM XD or XDR driveshell/freehub

Looking after your hubs

  • Our ÆRA No. 1 hubs can be serviced by ÆRA. Contact the team for pricing.

  • To extend the life of your bearings regular maintenance is essential

  • Clean and repack grease every 2000 miles or every six months to a year

  • Inspect regularly to ensure ideal conditions are maintained

The perfect complement to any ÆRA rim. Contact the team with any questions.

Handmade In England

Our No.01 hubs are proudly made in the UK. We believe in protecting our environment and the beautiful landscape that we enjoy cycling on, so are committed to sourcing reusable and recyclable packaging.