Unleash Your Cycling Potential to Ultra EXAR Ultra wheelset is designed for ultimate performance. The wheelset is fully equipped with top-level materials from spokes to bearing, creating elaborate hub and rim. No matter in terms of appearance, quality or speed, EXAR Ultra has been improved to a higher level. The difference in details will take riders to the lead on the field. Brake Disc Brake Height -Front Wheel 40mm, Rear Wheel 45mm Weight -1290g ±3% External Rim Width -30mm Internal Rim Width -23mm Rim Material -HI-MOD T800 Carbon Fiber Spoke -HI-MOD T800 Carbon Fiber Front Wheel Spoke Tension -110kgf±10% Rear Wheel Spoke Tension -Drive Side 130kgf±10%, Non-drive Side 110kgf±10% Front Wheel Spoke Lacing -21H 2:1, Brake Side×2, Non-brake Side Radial Lacing Rear Wheel Spoke Lacing -21H, 2:1, Drive Side×2, Brake Side Radial Lacing Ratchet -36T (Compatible with DT System. Replaceable Ratchet with Different Tooth Amount) Frame spacing -100/142mm thru-axle Freehub -Standard Shimano 11-speed (Campagnolo N3W and Sram XDR Freehubs are available separately) Compatible Cassette -Shimano 8-12 Speed Compatible Tire Type -Clincher Tire, Tubeless Tire Maximum Tire Pressure -120psi for Clincher Tire, 110psi for Tubeless Tire Compatible Tire Width -Compatible with 25c Tire and Above, Suggested Tire Width is 28c - 32c