The Black Inc THIRTY FOUR gravel-oriented wheels emphasizing strength and low weight, to offer top performance on mixed terrain rides. Strong enough for serious gravel grinds and light enough to keep up with the road-specific competition. The transition between the hookless rim profile and the tire sidewall has been carefully optimized to provide exceptional aerodynamic performance when using a large diameter tire. This feature makes the THIRTY FOUR an excellent wheel for gravel and road when using 30mm or larger tires. Specs Spokes 24 Pillar SR X-TRA 1424 Aero Butted straight pull Spoke Pattern 2x/2x Nipples Pillar External Brass DSN 16 mm type Weights Shimano: 1632g (Front: 731g, Rear: 901g) Compatibility Shimano HG 10/11 speed cassette, SRAM 10/11 speed cassette, SRAM 12 speed cassette, Campagnolo 11/12 speed cassette Hub Front: HU-03B Alloy Body / Rear: HU-03B Alloy Body Hub Width Front: 100 mm / Rear: 142 mm Axle Type 12 mm Thru Axle Bearings Stainless Steel Brake Interface Center Lock ASTM Classification Level 2 Material High Modulus Carbon Fiber (T-700/ T-800) Finish UD matte glossy clearcoat Type Interface Tubeless Type Compatibility Tubeless Recommended Tyre Size 700c x 32-43mm Rim Height 34 mm Rim Width Internal: 25 mm / External: 30 mm Rim Decals Water Transfer Assembly The THIRTY FOUR disc brake wheels are hand built by artisanal wheel builders and inspected with the latest electronic machines. This process gurantees that every single wheel's quality, performance and reliability. Included Accessories 1. Tubeless Valves / 2. Tubeless Tape / 3. Valve Extensions (Presta) / 4. Valve Core Removal Tool