When the terrain turns violent, this is the lightest, most compliant competitive gravel wheelset available. At 1,079g, these are the lightest gravel wheels in their class, paired with ARRIS Composite spokes for compliance, while the largest bead hooks in the category can take an absolute pounding and still keep air in the tires. At a Glance Use Gravel Racing & Riding Weight 1,079g with tape & valves Rim Depth & Width 38mm F/R external, 27mm internal width Hub & Engagement DT Swiss 180 EXP internals, 36T Spokes Roval Aero Composite Spokes by ARRIS Technical Specifications Rims Wheel Size / ETRTO 622 × 27 (700c) Tubeless Compatibility Yes Insert Compatibility Yes Brake Compatibility Disc (Centerlock) Rim Construction Carbon Clincher Hooked Valve Stem Length Roval Tubeless Valve, Alloy 40mm Hole Count Front: 21H, Rear: 24H Rear Rim Terra CLX III Carbon Clincher, 700c (WC043-2) Rear Rim Dimensions Depth: 25.5mm, External Width (at widest point): 38mm, Internal Width: 27mm, Bead Hook Width: 4.9mm Front Rim Terra CLX III Carbon Clincher, 700c (WC043-1) Front Rim Dimensions Depth: 25.5mm, External Width (at widest point): 38mm, Internal Width: 27mm, Bead Hook Width: 4.9mm Hubs Rear Hub Roval Low Flange Road Hub, Center Lock, 12x142mm, (LF19-R) Rear Freehub Body DT Swiss Ratchet EXP (36T ): Sram XD-R Rear Hub Bearing DT Sinc Ceramic Bearings - DS:1526 (15 x 26 x 7mm), NDS: 6802 (15 x 24 x 5mm) Front Hub Roval Low Flange Road Hub, Center Lock, 12x100mm, 19mm OD End Caps Installed (LF18-F) Front Hub Bearing DT Sinc Ceramic Bearings - DS: 6802 (15 x 24 x 5mm), NDS: 6802 (15 x 24 x 5mm) Spokes & nipples Nipples ARRIS MK4 Spoke Nipple Alloy, 6mm Rear Spokes Roval by ARRIS, Composite Aero Spoke with Ti End Pieces: T-head, 24qty, (DS: 299mm, NDS: 294mm) Rear Lacing Pattern One-Cross / Three-Cross (2:1), Not Tucked Front Spokes Roval by ARRIS, Composite Aero Spoke with Ti End Pieces: T-head, 21qty, (DS: 287mm, NDS: 300mm) Front Lacing Pattern Two-Cross / Radial (2:1), Not Tucked Tire info Tubeless Tape Width 30mm Tire Type Clincher Tubeless and Clincher Tube Type Design Tire Tracer TLR 45mm Approved Tire Widths 35mm-60mm (2.2") Max Pressure 35mm – 70psi, 36-45mm – 55psi, 46-50mm – 45psi, 51-60mm - 40psi Weight Wheelset Weight 1,079g (with valves and tape) Rear Weight 590g (with valves and tape) Front Weight 489g (with valves and tape) General Warranty Limited Lifetime Warranty Assembly Method Hand Built Weight Limit 275 lbs / 125 kg Certifications ISO 5775-2, UCI Approved E-bike Approved No Extras 4 Extra Spokes and Nipples, Roval Wheel Bag, Shimano HG 11/12-Spd. Road Freehub & end Caps (rear wheel only)