Fast, efficient and lightweight for long rides through mountain backroads but still tough and durable for big days across relentless gravel as well as fast rips on technical dirt, the all-new, go-anywhere CXR 1 represents the evolution of versatile performance.Features:- Optimized carbon lay-up places high-tensile strength carbon fiber at the most crucial points, ensuring a robust structure at a class-leading weight- Giant hookless technology further enhances the rim's durability with a more consistent carbon fiber structure, creating XC-level impact resistance and a rounder tire shape for better grip and handling as well as added sidewall support when cornering- 25mm inner rim width is apt for larger volume road and gravel tires- Dynamic Balanced Lacing technology ensures spokes are set for optimal tension when pedaling, resulting in enhanced durability and transmission efficiency, creating a stiffer, more efficient wheel that winds up fast and carries more speed- 54 tooth DT 350 hub offers near-instant engagement for quick power on technical climbsSpecifications:- Rim Material: Carbon- Rim Type: Hookless Clincher- Tubeless: Giant Tubeless System (rim tape and valve kit included)- Rim Height: 35mm- Rim Outer Width: 31mm- Rim Inner Width: 25mm- ETRTO: 622-25- Front Hub: DT350, Centerlock- Hub Compatibility: Shimano HG, SRAM XDR- Bearing: Sealed Cartridge- Front Axle: 100x12 Thru Axle- Spokes (Front): SAPIM CX-Ray- Lacing (Front): 24H, DBL- Weight (Pair): 1398g- Nipple Type: AlloyTechnology:Hookless rim design:- Hookless rim design enhances overall durability, offers a wider inner rim width without adding extra weight and also helps create a more round tire shape providing superior grip and handling as well as added sidewall support when cornering. Additionally, without the rim hook to push the tire bead inward, hookless rim design offers a more seamless airflow between the tire and the sidewall of the rim, resulting in less drag and improved aero performance when compared to standard hook-type rims.Dynamic Balanced Lacing:- Since its introduction in 2015, Dynamic Balanced Lacing (DBL) has been the cornerstone of Giant WheelSystems. DBL ensures that spokes are set for optimal tension when under dynamic load, resulting in enhanced durability and pedaling efficiency. The enlarged DBL hub flange also increases the spoke bracing angles, which boosts overall torsional/transmission and lateral stiffness for better power transfer and more stable sprinting.