EN931 - 29er mtb enduro 31mm internal width 23.5mm deep carbon rim - 500g

  • $195.00
    Unit price per 

Product Item: EN931 - 29er mtb 31mm internal width 23.5mm deep carbon rim - 500g

The EN931 - 29er enduro mtb rims are designed for all mountain / enduro cycling on hard, steep and technical trails, 31mm internal width is an ideal position in the middle of the strength, to weight, to width range, it works with many tire sizes.

Rim Specs

Rim Model EN931 (MX938EN)
Material Toray T700 & T800 premium carbon fiber
Size 29"
Intended Use Enduro / AM / e-bike
Bead Type Hookless
Tubeless Ready Yes
Inner/Outer Width 31mm/38mm
Depth 23.5mm
ERD 598mm (including nipple head dimension)
Weight 500g±20
Offset 0mm (symmetric)
Max Cyclist Weight (on flat ground)
125kgs / 276lbs
Spoke Hole Angle ±7°
Spoke Tension 110~130kgf (recommended)
Tire Pressure 60psi / 4.14bar (recommended max)
Tire Size 2.3" ~ 3.0" (recommended)
Warranty 5 years
     If you can't find the specs you need, please contact us directly to see what we can do, we will do our best to help you.

    Customer Reviews

    Based on 3 reviews
    29er mtb EN931 price/power

    I am very satisfied. Why is it the rim without Carbonal logo? There is no reason to be ashamed of it.

    Nino Ruzicka
    Stif and strong Enduro rim

    This is the new and strongest rims I ever tryed EN931/Sapim Cx-Ray/Hope Pro 4 Evo Boost), very stif and fast roling, great acceleration and torsion in cornering, more than 40% stronger than any other strongest Alu rims, no any movement in any milimeter of long riding and races, light and cool looking on the bike, perfect angle of the tire in the cornering with 31mm width! Highly recommend this rims!

    I have completely discarded my reservations and am totally satisfied.

    We have built my test wheelset with the proven Tune KING Kong Boost hub and light, stiff Sapim "D-Light" spokes.

    First you notice:: The rims are really cleanly worked have and a valuable appearance. In additon, they are not exactly thin, which indicates stiffness and a long service life. With 478gr. HR and 506 gr. VR the rims are exactly in the manufacturer's specification. Our test rims are 38 millimeters wide and have an inner diameter of 31mm. This lets the tire work nicely and provides decent grip. Tubeless mounting with the Maxxis DHL DHF combi went smoothly and during the last three weeks I have tested, they held the air very well. The tire always had a perfect fit.

    In terms of handling, it is noticeable: The rim is enormously stiff. I have found this to be very pleasant. The low rotating mass is also positively noticeable: The rims have a nice concentricity and respond very directly.

    Conclusion: if you're looking for a carbon rim that won't plunge you into financial ruin, you can get a really good deal with the Carbonal. I have completely discarded my reservations and am totally satisfied. In any case, a tip for individualists.