The Optimus Race Alloy Trail Rims provide the perfect balance of lightweight and fast rolling mixed with the capacity for getting a bit rowdy. The 6069 alloy construction with welded joints combined with 30mm inner rim width provide lateral stability and precision. This is essential to maintain speed and absorb impacts while reducing fatigue and increasing grip. The low rim profile height contributes to a lively feel with a responsive and dynamic ride. The rims are tubeless compatible. A 28mm internal width provides the best profile for tires from 2.3-2.5” wide. They pair perfectly with our 2.4" Optimus tire. Pair with e*thirteen Tubeless Tape, Tire Plasma Tubeless Sealant, and Quick Fill Tubeless valves for the complete tubeless system. PRODUCT SPEC Color Black w/ Gunmetal decals Drilling 28h ERD 29: 599 Included Rim, nipple washers, and User Manual Material 6069AL with welded joints Protection 5-YEAR WARRANTY Weight 477g Variations in paint and layup can result in +/- 5% Width 28mm internal width