Cylinder Athena Alu 120cc Honda MTX 80

120cc Big Bore ATHENA racing cylinder for Honda MBX 80, MTX R 80 and NSR 80 R

More power for the race track

The ATHENA Racing Big Bore Cylinder Kit is the perfect solution for anyone who wants to maximize the performance of their Honda MBX 80, MTX R 80 and NSR 80 R motorcycles. This kit, specially developed for racing, offers a significant increase in performance thanks to its larger displacement of 120 cc and its high-quality design.

athena racing big bore kit - Advanced technology

Made from high-quality aluminium with nickel-silicon coating, the 55 mm diameter cylinder has been optimized for high temperatures and the demands of racing. With 8 transfer ports (6 side and 2 rear), the design significantly improves gas flow, resulting in a noticeable increase in power and torque at both low and high engine speeds.

Racing only - Not approved for road use

This kit is designed exclusively for use in racing. It contains a VERTEX double piston ring that optimizes performance at both low and high engine speeds. It is recommended to combine the kit with a larger 24 mm carburetor, a racing exhaust, a reinforced crankshaft and heavy-duty bearings to achieve the best possible performance.

The ATHENA Racing Big Bore 120cc complete kit contains:

• Aluminum cylinder 120cc 8 transfer ports Ø55mm (WITHOUT cylinder head)
• VERTEX 2-ring piston (1.5mm rings) with side grease nipples
• Reinforced piston pin and clips
• Gasket set
• Stud bolt

Compatible models:

• Honda MBX 80
• Honda MTX R 80
• Honda NSR 80 R

Important note: The gaskets included in the kit are specially designed for ATHENA cylinders. When dismantling, original spare parts should always be used to ensure optimum sealing.