The Flow EX3 is the most reliable tubeless rim made for handling faster speeds on the most demanding trails. If you're looking for the ultimate rim for Enduro and DH racing, something to handle the increased weight and added speed of an E-bike, or just want the most durable rim possible, this is it. The Flow EX3 combines the 29mm internal width and durable 6069 aluminum construction of the Flow MK3 with the incredibly strong triple cavity design of the classic Flow EX rim. The result is a new rim shape that perfectly balances radial compliance with lateral stiffness and sets an entirely new benchmark for durability and impact resistance.Patented low-profile tubeless rim design balances lateral stiffness with radial complianceDesigned, tested, and raced to victories on the World Cup DH and Enduro World Series circuitsBuilt to handle the added speeds and increased forces of today s longer travel trail, enduro, DH, and E-bikesTiebeam triple-cavity rim design resists damage and prevents air loss under impacts29mm internal width optimized for 2.35 to 2.8 Trail, All-mountain, and DH tiresMost trusted tubeless system for easy setup and low maintenance6069 aluminum alloy is stronger than conventional 6061 alloysBead Blasted BBQ finish for added durabilityItem SpecificationsBrake CompatibilityDisc OnlyBrake TrackNoneColorBlackDefined ColorGrayDesigned for ebikeYesEyeletsNoneHub Drilling32ISO Diameter622 / Road / 29"Manufacturer Spec ERD (mm)602Rim Center Offset (mm)0Rim Depth (mm)17.9Rim JointWeldedRim MaterialAlloyRim Width (External)32.6Rim Width (Internal)29Tire TypeTubeless ReadyValve LengthShort 32-40mmValvePrestaWeight618Wheel Size29" Stan's No Tubes Flow EX3 Rim Rims UPC: 847746061175