From Long Time Trials / Ironman's or a Sprint Tri. More Speed Guaranteed. 

It’s the go-to race wheel for our tri pros for good reason.  With a 60mm wind-shedding profile and the inherent aero-advantages of a paired-spoke design, these wheels shed wind and go fast all day long. Their light-weight keeps them snappy on the climbs and the stiff-yet-compliant ride quality makes them easy to handle and a joy to ride, no matter the length. 

The all-new rim features a 20mm internal width and tubeless compatibility. The standard Ares6 build features  US-made hubs featuring Enduro bearings, titanium freehub body and T2 high engagement drive. Or, pull out the stops with a ceramic Enduro Zero bearing upgrade for even more speed and longevity.    

Available in disc and rim brake options. Add a tubeless kit to your order and you’ll have what you need to get set up in a snap. 

All Rolf Prima orders are built by hand in Eugene, Oregon.

*We do our best to ship your wheel order ASAP, but because your wheel orders are custom built, please allow up to 2-4 weeks for shipment once your order is processed.  Contact for more information!



  • Weight: 1715g [795g/920g]
  • Rim: Carbon clincher
    • Rim Depth: 60mm
    • Rim Width (max): 29mm, internal 19.5mm
    • Tubeless compatible [kit required]
  • Brake type: Disc brake, Center Lock
  • Spoke count: 20/20
  • Spoke type: Sapim CX Speed, bladed
  • Hubset: XST4.4 
    • T2 High Engagement
    • Enduro steel cartridge Bearings
    • Front axle: 15mm, 12mm, 9mm
    • Rear axle: 142mm, 135mm
    • Freehub: CNC Machined 6al4v Titanium
    • Freehub compatibility: Shimano HG 10/11, SRAM XDR 11/12, Campagnolo 11/12, N3W
    • Made in the USA
  • Tire size and pressure recommendation: Please refer to chart in product images
  • Includes: rim strips, valve extenders and Rolf Prima's Certainty