The SLR 1 42 Disc WheelSystems are efficient lightweight all-around carbon road wheels that bring premium-level performance to all riders. Featuring hookless rim design and optimized carbon layup to ensure a robust yet lightweight structure, contemporary wider inner width, as well as low friction hubs offering low rolling resistance and Dynamic Balanced Lacing (DBL) technology to maintain maximum power efficiency, the SLR 1 42 Disc bring outstanding performance at no compromise.FEATURES:Hookless rim design enhances overall durability and offers a wider inner rim width without adding weightOptimised carbon layup features high tensile strength carbon fibre placed at the most crucial points to provide stiff and lightweight wheelsLow friction hub with precision machined internals eliminates excessive bearing load, reducing bearing friction, lowering rolling resistance and minimising power lossDynamic Balanced Lacing (DBL) ensures spokes are set for optimal tension when pedalling, resulting in enhanced durability and transmission efficiencyThe enlarged DBL hub flange increases spoke bracing angles, boosting overall torsional/transmission and lateral stiffness for better power transfer42mm deep all-round rim profile with an updated inner width offers better support for today's higher volume road tyresSPECIFICATIONS FRONTRim Material: CarbonRim Type: Hookless ClincherTubeless: Giant Tubeless System (rim tape and valve kit included)Rim Height: 42mmRim Outer Width: 23mmRim Inner Width: 19.4mmETRTO: 622-19Front Hub: Giant Low Friction Hub, CenterlockBearing: Precision Sealed CartridgeFront Axle: 100x12 Thru AxleSpokes (Front): SAPIM CX-RayLacing (Front): DBL Disc, 24HNipple Type: AlloySPECIFICATIONS REARRim Material: CarbonRim Type: Hookless ClincherTubeless: Giant Tubeless System (rim tape and valve kit included)Rim Height: 42mmRim Outer Width: 23mmRim Inner Width: 19.4mmETRTO: 622-19Rear Hub: Giant Low Friction Hub, Ratchet Driver, CenterlockHub Compatibility: Shimano 10/11/12Bearing: Precision Sealed CartridgeRear Axle: 142x12 Thru AxleSpokes (Rear): SAPIM CX-RayLacing (Rear): DBL Disc, 24HNipple Type: AlloyWarranty: 2 yearsWeight (Pair): 1452g with Shimano freehubWheelSystem Weight Limit: 285 lbs / 129 kg