28mm wide 6061 eyeleted OSB alloy rim for superior tire support and wheel stiffnessSealed bearing hubs with 3 pawl, 24 tooth drive mechanism for quick engagement and durabilityRear hub is interchangeable between 135 and 142x12 with included axle kitIncludes Bontrager TLR rim strips and valve cores28 front/rear DT 14/15g spokes with Alpina locking alloy nipplesCompatible with both Shimano and SRAM 9/10 spd cassettesOptimize with Bontrager Super Juice and Tubeless Ready tires