M38 Disc Race Edition

Regular price $1,499.00

At first blush, you might be inclined to compare Mercury's M3 Carbon Clincher Wheelset to other manufacturers' pure climbing wheels. And you'd be right to do so, at least when it comes to climbing. But these aren't just a one-trick pony. The M3s' aerodynamic pedigree, low weight, and brute strength also recommend them for all the ups, downs, and flat-outs of competitive cycling. They cover the demands of every terrain on every day of your cycling life.



  • 24x38mm
  • Tubeless Ready
  • Low Drag Hub - 12x100 / 12x142 thru-axle spacing
  • Centerlock disc mounting
  • 6 Sealed Bearings
  • Sapim Spokes
  • Handbuilt in the US
  • 1610g - Disc only


The rims measure 38 millimeters, a depth that strikes an all-purpose middle ground between straight-on aerodynamics, hiding from crosswinds, and considerations of weight for climbing. The M3 is a solid 24mm wide, which means you can run lower PSI for a more comfortable ride that corners with unparalleled confidence. Wider rims also have some counter-intuitive effects when compared to those standard 19-millimeter rims: they actually decrease rolling resistance and increase aerodynamics.

If you are a team or a club and interested in bulk custom orders, please fill out the team custom request form and we will respond with pricing or sponsorship information.

All of our designs are custom created by our BIRDWORX team members. Simply choose a Birdworx product you want to customize and we'll send you a confirmation email to gather information to start your order!

Once a (1) design has been picked, Birdworx will allow for 2 revisions at no additional charge.  Anything over those 2 revisions, a rate of $45.00 per hour will be applied