Just as their 80mm Naran carbon fatbike rims are starting to ship out, Sarma is staying busy by introducing the world’s first 100mm carbon fat bike rim because hey, even the fattest bikes deserve carbon too. While most carbon fat bike rims have stuck with an 80mm width like their Naran, the new 100mm rim will offer lightweight fat bike performance with a tubeless ready design. In addition to the new rim design, Sarma was showing off their new Shaman carbon fat bike frame for the first time.
Want Siberia’s take on a fatbike? Check out the new products from Sarma after the break.
How fresh are the 100mm prototypes? So new that they haven’t been drilled yet, but the final product will be offered in either a centered 32h or universal 64 hole patterns to work with centered or offset designs. Sticking with the double wall design of the original Naran, the 100mm prototype carries some improvements over the original carbon rim in the form of smoother radii for better rim durability. The rim also features a new carbon manufacturing technique which will decrease the excess resin making a lighter, stronger rim. These changes will make their way onto the Naran 80mm rim as the company makes continual improvements as well.
Designed to be tubeless with the use of rim tape, the rims feature a bead lock to securely hold the tire at low pressures when running tubeless. Target weight for the 100mm rim is 750g, with availability and price TBD.
The other big news from Sarma was their prototype Shaman carbon fatbike frame. In development for some time, this is the first time we have seen a prototype. The frame is based on their 80mm Naran rim and uses a 170mm centered rear end. Dmitry tells us that they are considering a 190mm spaced frame as well but are still trying to judge the demand.
The Shaman uses their 135mm spaced thru axle equipped Hoboy carbon fork, which matches to the tapered head tube.
Other frame highlights include a 100mm threaded BB, internally routed cables, and 170mm thru axle rear end. Sarma plans to offer the bike in a frameset and complete build though the spec shown here is not representative of the final build. The paint is also being finalized with the stealth look shown here possibly being replaced with a grey panel design with red lettering. Have an opinion? They’d love to hear.