Product Description The Open Pro Carbon UST rim by Mavic - with laser machined brake tracks The Mavic Open Pro Carbon UST rim crowns the Mavic Open Pro series. It is slightly lighter than the aluminium model thanks to carbon fibres and features iTgMAX brake track technology for optimum braking performance in all conditions. It is best to ride them without a tube to benefit from Road Tubeless advantages, such as lower rolling resistance, puncture protection and less weight. The rim profile of the Open Pro Carbon is 25 mm high and therefore rather flat. Specifications:Application:Road, Triathlon & Time TrialWheel Size:28"Tyre Type:clincher tyreNumber of Spokes:20, 24, 28, 32Brake Type:rim brakeTubeless System:Road USTTechnical Information:Dimensions (ETRTO):19-622Inner Width:19 mmOuter Width:25 mmDepth:25 mmERD:589 mm (rim inner diameter + 2 x nipple height)Valve Hole Diameter:SV/Presta (6.5 mm)Rim Material:CarbonApproved For:Air Pressure (max.):6.75 barsRecommended Tyre Width:23 - 62 mmFeatures:tubeless rim tape width: 25 mm (included)tubeless ready (with Mavic UST valve - included)100 % carbonflat profileconventional rim drillingTechnology:iTgMAX Integral Glass Transition Temperature. iTgMAX means an inner rim bed sealed with multiple layers of seamless carbon fibre to achieve a unique one-piece rim shape without cutting away fibres. The brake track is given a lasered finish to guarantee optimum braking efficiency. Consistent and efficient braking, 50 % less time to decelerate in wet conditions. The most reliable carbon rim that withstands the toughest use of the most powerful riders in the worst conditions. Road UST UST means Universal Standard for Tubeless and is compatible with UST Tubeless Ready tyres. The UST technology improves traction, control and riding comfort with reduced inertia and reduced risk of punctures. Manufacturer Numbers:20 hole:J380012024 hole:J380012428 hole:J380012832 hole:J3800132Contents:1 x Mavic Open Pro Carbon UST rim1 x Mavic tubeless rim tape1 x UST valve with accessorieswashers for nipples Weight: black | 20 | 28": 425 g Manufacturer: Mavic Group Germany GmbH Geigelsteinstraße 10 83080 Oberaudorf Germany info@mavic.com