American wheel and sealant specialist, Stans No Tubes, has revealed two new carbon rims.
Collaborating with Californian frame brand, Ibis, Stans have added two new CB7 specification rims to their product portfolio, complementing the company’s existing Arch and Crest CB7 offering.
These new rims feature an asymmetric spoke hole profile, which allows for superior balance in spoke tension. What Stans has managed to achieve with their CB7 rims, are to combine the benefits of asymmetric spoke tension with the traditional sealing properties of a more conventional rim.
Both these new Stans rims are designed for riders who prioritise descending, bringing all the benefits of asymmetric spoke tension and carbon construction, to an audience that prefers riding wider rims and burlier tyres.
The Flow CB7 remoulds Stans classic enduro rim in carbon. Internal rim width remains at 29mm, similar the MK3 aluminium Flow rim, but weights has dropped.
The Flow CB7 27.5 rim has a mass of 420g and if you prefer a 29-inch wheel, that will be 455g. Those weights numbers make the Flow CB7 160g lighter than an equivalent aluminium Flow EX, in 27.5, and 163g lighter if you want the larger 29er rim.
Stans recommend 2.35- to 2.6-inch tyres as the most appropriate volume casing for its new Flow CB7 rim.
For those riders who require an even wider rim, there is the new Baron CB7. It features a similar symmetric spoke profile to the Flow CB7, but the internal width is wider, at 35mm. The additional width amazingly does not increase weight.
Due to the wider rim width allowing for an even larger air volume, Stans engineers have been able to slightly reduce the amount of protective carbon material, which allows the CB7 to register the same weight as a Flow CB7.
As a complete factory build, these new Stans carbon wheelsets weigh 1674g and 1761g, respectively, and are available in both 27.5- and 29-inch guises.