Description
Specifications
Rim | |
Series | 29er Pro33 |
Wheel Size | 29″ |
Tire Compatibility | Clincher/ Tubeless |
Rim Depth | 29mm |
Inner Width | 27mm |
Outer Width | 33mm |
Rim Profile | Asymmetric |
Offset | 3.2mm |
Bead Type | Hookless |
Other | |
Assembly Method | Handbuilt |
Rim Finish | Glossy Marbled |
Max Tire Pressure | 50psi/3.4bar |
Extras | Rim Tape(Installed), Tubeless Valves(Installed) |
Weight (Pair) | 1359g+(See FAQ Data information) |
Rider Weight Limit | 275lbs/125kg |
Recommended Tire Sizes | 2.1″-2.7″ |
Intended Use | Cross Country / Trail |
ERD | 580mm |
Hub | |
Front Hub Spacing | QR x 100mm / 15x100mm / 15x110mm |
Rear Hub Spacing | QR x 135mm / 12x142mm / 12x148mm |
Bearing | TPI |
Brake Compatibility | Disc (Center Lock/6-bolt) |
Freehub Type | Ratchet System 36T |
Freehub Compatibility | Shimano / SRAM XD / Micro Spline |
Spoke | |
Front Spoke Pattern | 3X/3X |
Rear Spoke Pattern | 3X/3X |
Spoke Count | 28F/28R |
Spoke Type | Sapim CX-Ray |
Nipple Type | Sapim Secure Lock |
XC3 mountain wheels

RIM
During the rim production process, internal inflatable bladders from a special material are used to produce smoother walls, resulting in a lighter rim. These bladders are then completely removed without the use of harsh chemicals through the valve hole. Our unique manufacturing process makes is so that the rim does not have to be patched to extract the bladders like traditional manufacturers. This significantly improves the strength of the rims.
RIM TYPE
We use both genuine Toray T700 and T800 carbon fiber which is superior to generic carbon fiber used by many manufacturers. The two types of carbon fiber are used in different places to increase the wheel’s strength to weight ratio while reducing lateral and radial forces as well as increasing impact resistance.
The rims have also been specifically designed to make sealing tubeless tires using a floor pump easy.
SPOKE
Sapim CX-Ray spokes come standard. We take precautions to ensure that spoke windup is minimized so wheels don’t go out of true. After the initial truing, the wheel is sideloaded. This process is repeated again. The wheels are sideloaded a total of 16 times. We see this as an essential quality control standard. As a result, our wheels are guaranteed to stay within 0.2mm of true.
The 3.2mm spoke offset minimizes the right and left spoke tension difference. This makes for a stonger and more laterally stiff wheel giving you more control.
I've had the Pro33 wheelset with the Pro hubs for over 8 months. The wheelset is astonishingly light weight without exhibiting noticable flex. The wheelset has been ridden in all kinds of terrain and has held up very well without any need for truing. The Pro hub uses the robust 36T ratchet system which is a proven simple design. The Sapim CX ray are the best out there in terms of low weight combined with strength. The wheelset comes ready with tubeless tape and valves which is a nice bonus. These wheels are by far my favorite carbon wheelset I have tried at an excellent price.