D3 Dual Directional Design - Super-aero rim profile produces lower drag results at the tyre-leading and rim-leading edge. OCLV Carbon - The most advanced carbon available is ultra-light, compliant and durable. Stacked Lacing - Provides a better spoke bracing angle for a stiffer wheel. Construction: 50mm deep OCLV Carbon rim (27mm outer, 17.5mm inner width), DT star ratchet drive system, 18 front/24 rear DT nail head 14/17G bladed spokes with Alpina alloy locking nipples. Compatibility: Shimano 10/11spd, SRAM 10, Campagnolo (freehub sold separately). Includes: Bontrager Carbon Stop Cork pads, Bontrager valve extender, Bontrager internal cam quick release. No rider weight restrictions.