EXAR CARBON PRO GRAVEL SERIES WHEELSET
Where endurance meets performance, GR45 Pro is born for gravel combining lightweight performance with all-terrain durability. The balanced profile, rim width and gravel-optimized hubs ensure explosive power transfer on any surface and transform rough roads into smooth sailing.
PRODUCT HIGHLIGHTS
- Integral Design, Rides Light and Fast: Instead of being a combination of components and sub-assemblies, EXAR carbon fiber wheelsets are quality and high-performing products featuring an integral design of appearance, weight, and performance. GR45 Pro applies HI-MOD carbon fiber on rim. While the rim, spoke and hub remain stiff, we optimized materials and structure to keep it as light as possible. The light design effectively reduces driving weight and improves sprinting performance. *The wheelset weight doesn’t include the weight of quick-release skewer and rim tape. A tolerance of ±3% applies to the weight, and the actual wheelset weight should prevail.
- 45mm Aero Profile, Balanced Rigidity for All-terrain Domination: Compared with lower-profile wheels, the 45mm rim depth reduces frontal wind resistance, delivering significant aero gains. At the same time, it achieves the perfect balance of torsional and lateral stiffness, ensuring uncompromising power transfer under high-torque efforts. Where aerodynamics meets unwavering rigidity, the GR45 Pro unlocks peak performance across every terrain.
- 32mm Fat Rim, Ultimate Comfort: Engineered for gravel bikes, the 32mm external / 25mm internal width wide rim delivers superior aerodynamics in turbulent crosswinds while enhancing stability. When paired with 35c and above wide tires, the wider rim provides enhanced tire support, reducing deformation to improve cornering grip and steering precision. Meanwhile, it enables lower tire pressure, significantly boosting comfort on rough terrain by absorbing vibrations more effectively. This scientifically optimized combination achieves the perfect balance between tire stability, handling control, ride comfort, and aerodynamic efficiency.
- Tubeless-Ready, Tape-Free: Compatible with both tubeless and clincher tires. Without spoke holes, the rim is tubeless-ready with no need of rim tape.
SPECIFICATIONS:
BRAKE: DISC BRAKE
HEIGHT: 45MM
WEIGHT: 1490G (INCLUDE ±3% TOLERANCE ON WEIGHT,WITHOUT RIM TAPE AND VALVE)
EXTERNAL RIM WIDTH: 32MM
INTERNAL RIM WIDTH: 25MM
RIM MATERIAL: HI-MOD CARBON FIBER
SPOKE PILLAR WING: 20
FRONT WHEEL SPOKE TENSION: BRAKE SIDE 110KGF±10%
REAR WHEEL SPOKE TENSION: DRIVE SIDE 130KGF±10%
FRONT WHEEL SPOKE LACING: 24H 1:1
REAR WHEEL SPOKE LACING: 24H 2:1
RATCHET: 36T (REPLACEABLE RATCHET WITH DIFFERENT TOOTH AMOUNT）
FRAME SPACING: 100/142MM THRU-AXLE
FREEHUB: STANDARD SHIMANO 11-SPEED (CAMPAGNOLO N3W AND SRAM XDR FREEHUB ARE AVAILABLE SEPARATELY)
COMPATIBLE TIRE TYPE: CLINCHER TIRE, TUBELESS TIRE
COMPATIBLE TIRE WIDTH: COMPATIBLE WITH 28C TIRE AND ABOVE
MAXIMUM TIRE PRESSURE: CLINCHER TIRE 120PSI，TUBELESS TIRE 110PSI
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