Magene EXAR GR45 Pro Disc Brake Wheelset SRAM XDR

Where endurance meets performance, GR45 Pro is born for riding.

Combining lightweight performance with all-terrain durability. The balanced profile, rim width & gravel optimised hubs ensure explosive power transfer on any surface and transform rough roads into smooth sailing.

FEATURES

Integral design rides light & fast:

• Instead of being a combination of components & sub-assemblies, EXAR carbon fibre wheelsets are quality and high performing products featuring an integral design of appearance, weight & performance.
• GR45 Pro applies HI-MOD carbon fibre rims, ensuring rim, spokes & hub remain stiff. The materials and structure are optimised to keep them as light as possible. This light design effectively reduces driving weight and improves sprinting performance.

Where Aero meets rigidity, the GR45 unlocks peak performance across every terrain:

• Compared with lower profile wheels, the 45mm rim depth reduces frontal wind resistance, delivering significant aero gains whilst at the same time achieving a perfect balance of torsional & lateral stiffness, ensuring uncompromising power transfer under high torque efforts.

32mm wide rim = ultimate comfort:

• Engineered for gravel bikes, the 32mm external / 25mm internal rim width delivers superior aerodynamics in turbulent crosswinds while enhancing stability.
• When paired with 35c & above tyres, the wider rim profile provides enhanced tyre support, reducing deformation to improve cornering grip & steering precision. Meanwhile, it enables lower tyre pressure, significantly boosting comfort on rough terrain by absorbing vibrations more effectively. This optimisation achieves the perfect balance between tyre stability, handling control, ride comfort & aerodynamic efficiency.

Flat engagement ratchet:

• GR45 Pro features a 36t flat ratchet system which has greater engagement force and a larger surface. This design enhances the durability of the ratchet, ensuring fast and precise engagement with improved stability. The rotating sound is smoother & more consistent with the use of the flat spring. Additionally the ratchet system allows for easy replacement with other ratchets of varying tooth counts, offering increased versatility.

Elaborate hub design engineered for gravel:

• Front: 24H, 1:1 lacing pattern with crossed spokes on both sides for enhanced durability & stability during braking & power distribution. The wide flange spacing improves spoke bracing angles & tension distribution. Maximising lateral stiffness & support.
• Rear: 24H, 2:1 lacing configuration to reinforce drive-side efficiency while maintaining critical lateral rigidity.

More powerful design:

• Compatible with both tubeless & clincher tyres. With no spoke holes, the rim is tubeless ready, with no need for rim tape.
• GR45 Pro features Pillar Wing 20 steel spokes. Compared with carbon spokes, steel spokes have superior vibration absorption, impact resistance & durability whilst on rugged terrain. GR45 Pro Wheelset is UCI approved, meeting the strict performance & safety standards of professional racing. Lab tested reliability that thrives in real world gravel chaos.

SPECIFICATIONS

• Model: GR45 Pro
• Brake: Disc
• Rim height: 45mm
• Weight: 1490g ±3% (not including valves)
• External rim width: 32mm
• Internal rim width: 25mm
• Rim material: Hi-Mod carbon fibre
• Spokes: Pillar Wing 20
• Spoke tension: F NDS 110kgf ±10%, R DS 130kgf ±10%
• Ratchet: 36t (54t sold separately)
• OLD: F 100mm, R 142mm Thru-Axle
• Freehub: XDR (HG sold separately)
• Tyre compatibility: Tubeless or clincher
• Tyre width: 28c & above
• Max Tyre pressure: Tubeless – 110psi, Clincher – 120psi
• Included:
  
  • Carbon fibre front wheel x1
  • Carbon fibre rear wheel x1
  • Tubeless tyre valve x2
  • Manual x1