Sarma just announced the very first Carbon Fiber 29+ Rim to hit the market! The new Naran 29+ is tubeless ready – 50mm wide and weighs a mere 450 grams! If you were thinking about building a set of summer wheels for your fat-bike, these rims could be a game changer.
The following is from the news release from Sarma –
FEM optimised (Finite Element Method):
How do you find the best formula for carbon layouts with the best stiffness/durability and optimal weight?
Special 3D modeling and analysis software, coupled with skills from the aerospace industry.
Here is a related article about our approach: http://sarmabikes.com/blogs/
news/12104417-advanced- engineering-for-creating- brand-new-carbon-rim-for- fatbike
Unlike most carbon rims, the manufacture of this rim has no post process cutting or machining of the bead hooks, thus none of the individual carbon fibers are disrupted or severed. The end result? No weight restrictions (okay there is one, but it’s generous) and only 450 grams at 50mm wide!
Improved web and bead seat:
The new design results in a smooth inner rim surface, for better seating of tubeless tires and increased durability, less material and increased stiffness.
Outer width: 50 mm
Drilling: Centered (32 holes, spoke holes offset ± 7 mm)
Compatible with tubeless
Drilled for Presta valve, recommended length: 45 mm
ERD: 592.5 mm
ERTRO: 622 mm
Max rim pressure 25 psi
Max rider + bike weight limit 260 lbs
Max spoke tension 120 kg (centered)
Recommended width of tubeless tape 30 mm
Recommended spoke nipple: 12-14 for centered
MSRP – $1,220 per pair
Available – Early August 2014
Sarma USA is taking pre-orders and also offers full wheel builds with numerous hub and spoke options available.
Visit Sarma USA at – http://us.sarmabikes.com/ for more information.