Skip to product information
1 of 5

32er 45x32 Carbon MTB & Gravel

32er 45x32 Carbon MTB & Gravel

Regular price $1,990.00 USD
Regular price Sale price $1,990.00 USD
Sale Sold out
Description

These are so new, we haven't even finalized the name yet. Unveiling at MADE 2026, we can't keep them secret any longer!

We've worked to develop a 32er wheel that's still lightweight and nimble while being plenty robust for the rough stuff. The carbon layup we've speced is the secret sauce; at just 490 grams per rim, you'll be dancing up and down the trails and roads. And that's for a 45mm depth rim with a 32mm internal rim width (38mm external)! Rims have a micro-hook, as well. Complete sets are approximately 1510g. 

We're producing these in small batches for now, and are doing our best to keep them in stock.

We are ALSO producing a 30mm depth rim with a 30mm internal rim width and a micro-hook for gravel use, and a 25mm depth / 30mm internal hookless variety for MTB shredding. If you're interested in either of those, GET IN TOUCH

Features
  • Meticulously hand built in the U.S.A.
  • Fidelity R36 Disc standard builds / Fidelity M Disc or Boost builds available by request
  • 45mm depth / 32mm internal width micro-hooked carbon rim
  • Other rim depths available

 

 

More Info

The new 32er 45x32 rim profile measures in at a 32mm internal rim width and features a micro-hook. The external rim width is 38mm. We recommend a 50mm tire and up, although folks have gone a bit smaller. There's no upper limit to what these rims can handle, but 2.25 to 2.4" would be the "sweet spot.

Hub Options

The Fidelity R36 Disc is our standard build option or these, to keep them light. But if you prefer quicker engagement, HiFi offers a MTB-specific disc hub, both in Boost and regular 100mm / 142mm spacing (or 135mm for those QR holdouts out there). The Fidelity M Disc centerlock has regular disc spacing, while the Fidelity Boost takes care of the wider axle needs. The rear hub has 6 offset pawls with two engagement points each, and they interact with a ring that sports 102 teeth. That translates to an engagement angle of less than 2 degrees—lightning quick! The M Disc build adds about 60g.

HiFi disc hubs are now all centerlock, but we do offer some really nifty adapters that let you run 6-bolt rotors with a lockring on our hubs (or any centerlock hub). No bolts required!

Some Future Proofing and Built-in Flexibility

Our 100mm front hubs quickly convert to 15mm or 12mm thru-axle, or to quick release, and the rear hub converts to a 142×12 or 135mm QR. End caps to match your preferred setup are included with all of our wheels. All of our HiFi Fidelity Disc hubs can be set up with with Shimano/SRAM HG freehub bodies; SRAM XDR/XD Drivers; or Microspline freehubs. Road hubs have a Campy option. Fear not: these are future proof (or at least future resistant)!

All HiFi wheels are shipped with lockrings, tubeless tape, and valves included, ready to take your existing ride and amplify it.

Tech Notes

32er 45x32

Rim profiles: 45mm deep with a 32mm internal width, with an asymmetric rim profile. These rims have a micro-hook.

Hubs: HiFi Fidelity R36 Disc hubs with Japanese stainless steel cartridge bearings. Durable, dependable, and light.

Freehub: Shimano/SRAM HG; SRAM XDR/XD Drivers; Microspline; Campy all available

Spokes: 28h 2x front and / 28h 3x rear Sapim CX-Ray bladed spokes; Sapim Securelock alloy nipples (brass also available).

Wheel Weight: 1510g

Discipline: The 32er 45x32 wheels are fantastic gravel race or gravel adventurers

What's included: HiFi tubeless disc wheels all come with the freehub you require, centerlock lockrings, tubeless tape, and tubeless valves. QR orders include quick release skewers.

Need help? GET IN TOUCH; we'd love to hear from you! 

View full details