GrigioCarbonio Hardwheel AS31 ultralight MTB 29" rim for tubeless or tubeless ready tires. Asymmetrical profile (3 mm offset), 25 mm height, 34 mm width (31 mm inner channel). Monocoque fully made with high module T1000 carbon fiber, great technology and superior attention to details with differentiated construction for front rim and rear rim. With only 280 grams (front rim) and 300 grams (rear rim), is actually the lightest clincher MTB rim on the market for its size, but is extremely strong and reliable too and hasn't got any rider weight limit. 24h-28h-32h drilling, 12k or UD fiber fabric, glossy or matte finishing, sticker type removable graphics in many colors. 100% Made in Italy.
With only 290 grams medium weight (28 holes, 280 grams for front one and 300 grams for rear one, +/- 5% tolerance), GrigioCarbonio HardWheel AS31 T1000 rims are, for their size, the lightest and finest ones on the market.

They're 34 mm wide with 31 mm inner channel and 25 mm height.

They've got asymmetrical shape with 3 mm offset and this allow to obtain a better balancing of spokes tension on both wheel sides. The result is a strong wheel that will maintain spoke tension and truing for a longer time with a great reliability and longevity (spokes are less stressed).
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Rim structure is differentiated from front and rear rim because the types and intensity of loads are different on front and rear wheel so make sense to optimize structural dimensioning. Rear rim weighs about 20 grams more and can withstand to bigger static loads and torsional loads introduced from transmission; the presence of the freewheel-body also create an asymmetry in the wheel design with greater difference on spoke tension between wheel sides. So this type of differentiation is the response for a real need especially if you are going to offer the lightest rim on the market. We think that AS31 T1000 rims are actually the ones with differentiated structure for front/rear rim.
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Rim side walls and inner channel has got Hook-less type design but they also have got anti-beading hooks for a double safety. They are probably the only carbon rims on the market with anti-beading hooks because make carbon rims with hooks is very difficult and expensive but is surely a plus always welcome, specially on a premium product!
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Side walls are fully made with well compacted structural fibers without any filling material and or interrupted fibers. This assure a great impact resistance and avoid any risk of de-lamination.

HardWheel AS31 T1000 rims are available in 24-28-32 h drilling with T1000 12K fabrics, really elegant and racing at the same time, or UD unidirectional fabrics, matte or glossy finishing choice.

Graphics are sticker type so fully removibile, you can change them if worn out or only to change look. They're are available in many colors directly cutted or printed from 3M high quality vinyls. Please write the color that you prefer in the order notes or let us know your choice through e-mail.

HardWheel AS31 T1000 rims are compatible with 29" Tubeless or Tubeless Ready tires (with sealant conversion systems). The oversize shape assure a great stiffness and a greater air volume so you can use lower inflating pressure with better performances (better grip, traction, comfort and puncture resistance). The rim valve zone has got a special aluminium insert that protect the carbon fiber and assure a better sealing due to the ultra flat surface. The aluminium insert is fully CNC machined with GC milled logo and black anodized finishing for an amazing detailing.

HardWheel AS31 rims are monolithic and fully T1000 high module fibers made, the most advanced and performing on the market, which allows to create products with an incredible stiffness/weight ratio. Another important feature of T1000 fiber in the great elasticity (25% more than T800), so a final better impact resistance, less vibrations and a superior comfort...all this is really great for a MTB rim!
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T1000 carbon fiber is at least 4 times more expensive than T700 and T800 carbon fiber (which are usually used to make carbon fiber rims). GrigioCarbonio is proud to offer a top quality product with unique features at a competitive price, that's the real goal.

But the real added value is the working ability, using the best material in the best way, with the best layering compacting the fibers with an autoclave with high pressure and correct temperature. GrigioCarbonio is a brand that comes from SG Compositi, a company with more than 20 years of experiences in composite materials at high levels (automotive, aviation, aerospace and sport racing). The great experience, the materials and technology know-how is always an advantage and is the only way to became recognized in the industry.

HardWheel AS31 T1000 rims are very light and performing but they are safe and reliable at the same time. GrigioCarbonio take particular care about safety, each products is tested before inside the factory and then with external labs able to certify and omologate it according to UNI EN 14XXX standards.
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Many race teams and top riders in the age used HardWheel rims and helped to develop them. Their feedback and the continuous product improvement gave birth to an ultralight rim, very strong with a great stiffness and reliability. For this reason there is no any rider weight limit or any other limitation different to max spoke tension and max pressure inflating.

Dream Bikes offers HardWheel AS31 T1000 rims as spare products and also in complete wheelset. We can offer you custom assembling with Extralite, Carbon-Ti or DT swiss hubs. Spokes are usually ultralight stainless steel ones made by Alpina so we have the opportunity to offer you 100% Made in Italy wheels with weights starting from about 1060 grams for the pair. On demand we can also assemble wheels with Berd textile ultralight spokes, with weights starting from only about 1000 grams!

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Don't esitate to contact us for prices and any further information.

All GrigioCarbonio parts are 100% proudly Made in Italy.

Product |
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Availability |
This product is no longer in stock
|
Price |
€1,023.77
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Description |
GrigioCarbonio Hardwheel AS31 ultralight MTB 29" rim for tubeless or tubeless ready tires. Asymmetrical profile (3 mm offset), 25 mm height, 34 mm width (31 mm inner channel). Monocoque fully made with high module T1000 carbon fiber, great technology and superior attention to details with differentiated construction for front rim and rear rim. With only 280 grams (front rim) and 300 grams (rear rim), is actually the lightest clincher MTB rim on the market for its size, but is extremely strong and reliable too and hasn't got any rider weight limit. 24h-28h-32h drilling, 12k or UD fiber fabric, glossy or matte finishing, sticker type removable graphics in many colors. 100% Made in Italy. |
Weight : |
280 Gr. (front rim) - 300 Gr. (rear rim) (+/- 5%) |
Construction : |
Monocoque |
Rim shape : |
Asymmetrical |
Offset : |
3 mm |
Diameter : |
29" (622 mm) |
ERD : |
591 mm |
Height : |
25 mm |
Width : |
34 mm |
Inside width : |
31 mm |
Material : |
T1000 High Module Carbon Fiber |
Finish : |
12k natural T1000 carbon fiber or UD unidirectional, glossy or matte |
Graphics : |
Sticker decals (removable), many colors |
Use : |
XC, Marathon, All Mountain |
Holes : |
24-28-32 h |
Fitting : |
With tubeless or tubeless ready tires |
Max rider weight : |
Unlimited |
Rated Load : |
100 kg |
Max Pressure : |
3 bar |
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