The Koga Kinsei 50mm Carbon Wheelset brings cutting-edge aero engineering and durability to performance-focused riders who demand precision, speed and compatibility. Built around an aerodynamic 50mm carbon rim with a modern 21mm internal width, this wheelset is optimised for 28–30mm tyres, offering superb ride stability, grip and comfort without sacrificing speed.

At the core of the Kinsei system are its lightweight sealed-bearing hubs, weighing under 400g per pair and delivering crisp 6.9° engagement through a robust 52T stainless ratchet ring and multi-point 3-pawl design. These hubs are built for responsive acceleration and long-term reliability.

Spoke technology is equally elite: Pillar Aero Wing straight-pull spokes made from Swedish T302+ stainless steel provide exceptional stiffness and are wind tunnel tested for aerodynamic gains. Brass nipples and a 21/24 count round out a build trusted at pro level.

This is a tubeless-ready disc brake wheelset designed for modern road bikes, delivering the stiffness, weight and profile you’d expect from top-tier carbon race wheels, with the versatility to handle a range of terrain and tyre widths.

Future-Proof Support: The Kinsei wheelset is built to last, and to stay on the road. That’s why we carry a full range of spare axles, bearings and freehubs to support your wheels well into the future.

Key Features:

• Rim Material: Carbon fibre with 50mm depth for aero efficiency
  
• Rim Width: 21mm internal, 28mm external
  
• Tyre Compatibility: Tubeless ready and inner tube compatible (not tubular)
  
• Tyre Range: 25mm to 45mm wide
• Aero optimised tyre range: 28-30mm tyres
  
• Max Tyre Pressure: 7 bar / 101 psi
  
• Brake Interface: Centre lock disc only
  
• Rider Weight Limit: Up to 120kg
• Weight: 710g (front) / 820g (rear)
  

Hub & Freehub System:

• Lightweight Kinsei hubs with sealed stainless bearings
  
• 3-pawl engagement with a 52T ratchet ring (6.9° engagement)
  
• Freehub: Shimano HG or SRAM XDR
  
• Axles: 12x100mm front, 12x142mm rear

Spokes & Nipples:

• Pillar Aero Wing straight-pull T302+ stainless steel spokes
  
• Spoke count: 21 front / 24 rear
  
• Durable brass nipples

Included in the Box:

• Tubeless tape pre-installed
  
• 2 x tubeless valves
  
• Disc rotors not included

Spare Parts:

• Front axle: Koga Kinsei 12 x 100 Replacement Front Axle
• Rear axle: Koga Kinsei 12 x 142 Replacement Rear Axle
  
• Freehub: Koga Kinsei Replacement Rear Freehub