Strada says: At 325g, the Stans Crest CB7 is among the lightest rims available for cross country racing. Its 23mm internal width makes it ideal for modern wide cross country tyres without adding unnecessary weight allowing fast acceleration out of corners and minimal speed loss over bumpy challenging terrain.
Use: Cross Country / Marathon Racing (also Cyclo-Cross IMO)
• Internal Rim Width: 23.0 mm
• Tyre Sizes: 2.00” to 2.25”
Radial Impact Absorbing Carbon Technology. Stans obsessive attention to the shape of the rim and a proprietary carbon fibre lay-up process have resulted in a rim that absorbs radial vibrations and impacts while maintaining lateral stiffness, keeping your wheels driving constantly forward with less energy loss than other carbon rims.
Smooth is fast. The more forward momentum your wheel and tyre can maintain without deflecting off the ground and sending your energy upward and backward, the faster you move. Stans Crest CB7 RiACT rims allow the wheel system to absorb more, offering levels of vibration damping and impact absorption never possible before. The result is a rim that’s both stronger and faster-rolling.
The Crest CB7 rims are created using a high impact resistant nano-elastomer resin for greater overall rim strength and can deflect up to 10mm radially to soak up speed-robbing impacts, all while being laterally stiffer than aluminium rims. Thanks to the impact absorbing RiACT technology the Crest CB7s roll easier and with less resistance. Their design virtually eliminates race losing tyre pinch flats.
Bead Socket Technology
Like all Stan’s rims, the Bead Socket Technology (BST) of the Crest CB7 sets the standard for easy tubeless setup and reliability. The patented shape of BST rims not only allows tyres to make airtight seals more quickly and easily, but it maintains that seal more securely, even at lower pressures. The low-profile design of BST rims also means less weight, stronger sidewalls and a more effective tyre shape.
NOTE: due to the compliance we do not recommend these rims are used with straight pull spoke hubs as they will not handle the give needed by the rim compliance.
A quick video from Stans…
STANS say: All carbon rims are not created equal. If your carbon rim is too stiff, you’re losing speed and risking tyre pinch flats. The Stans Crest CB7 rim with RiACT absorbs radial vibrations and damps impacts. It’s a difference you can feel in the ride of the bike almost instantly. First introduced with our legendary Valor rim, our impact absorbing RiACT technology has evolved to be more responsive and even more durable. The Crest CB7’s new layup and rim shape allows for 10mm of radial compliance to absorb larger impacts. The new rim also matches the Valor’s strength while using less material to save weight. And when it comes to the lateral stiffness needed for steering precision and control, the new CB7 layup delivers. Wider than the original Valor while still optimised for XC tyre widths, the Crest CB7 keeps you in control and rolling faster.
The Crest CB7 also features our Bead Socket Technology. Combined with our sealant, Stan’s patented BST rim design has become the foundation of all current tubeless-ready systems. There are many imitations out there these days, but only one true BST tubeless system. The Crest CB7’s tubeless technology means lighter, lower, faster accelerating sidewalls, easier inflation, and reliability that continues to set the benchmark for all tubeless systems.
We back up the technology in every Stans Crest CB7 rim with one of the best warranties available, including lifetime crash replacement. Better by design, the Crest CB7 is the most advanced rim available for creating a lighter, stronger, more reliable, and faster rolling wheelset.
Designed for cross country racing and riding.
Patented low-profile sidewalls and 23mm internal rim width.
Ultra-light 325g (29”) rim weight.
RiACT system absorbs impacts and rolls faster.
Bead Socket Technology for easier tubeless setup and the best reliability.
WideRight rim design optimized for 2.00 – 2.25 tyres.
Custom decal kits available to match most bikes.
Warranty and Crash Replacement
Crest CB7 rims are automatically covered under Stan’s two-year carbon warranty program. Owners who register their wheels get five years of warranty coverage. All registered rims are also covered by Stan’s lifetime crash replacement.
Riact – InDepth:
Everyone knows carbon fiber can create a stiff wheel. We knew it could do much more. The carbon fiber rims on our Valor wheelsets are 30% stiffer laterally than our legendary aluminum rims, but the real key to their outstanding performance is Radial Impact Absorbing Carbon Technology. Obsessive attention to the shape of the rim and a proprietary carbon fiber lay-up process have resulted in a rim that absorbs radial vibrations and impacts while maintaining lateral stiffness, keeping your wheels driving constantly forward with less energy loss than other carbon rims. RiACT lets us create a rim that’s lighter than the competition while also being stronger. Our Valor Carbon rims can absorb radial impacts large enough to compress the wheel 7mm without damaging the rim or even losing air pressure in the tire. Our new Bravo Trail and All-mountain rim is able to deflect an incredible 10mm radially without damage or pinch flatting.