Easyboost subchassis adapter for Minarelli horizontal engine to Yamaha BW'S 50

Subchassis Easyboost engine adapter Minarelli horizontal to Yamaha BW'S 50.

The Easyboost Racing mounts allow you to fit a horizontal Minarelli engine (such as that of an MBK Nitro or Yamaha Aerox) into the chassis of an MBK Booster, Yamaha BWS or Rocket, making it easier to create a "Spitro". This system is designed for set-ups where the carburettor is oriented towards the rear of the engine.

Installation is quick and simple, as it uses the original chassis mounts without the need for welding. Manufactured in France from 8 mm thick electro-galvanised steel and laser cut, these mounts guarantee high strength and durability. In addition, they are designed to work with the original shock absorber or one of similar length, approximately 250 mm.

Kit contents

• Chassis mounting brackets.
• Engine adaptation plates.
• Engine mounting axles and tubes.
• Bushings spacers.
• Complete set of bolts and all necessary mounting hardware.

Compatible models

MBK

• Booster Naked
• Booster Naked 12"
• Booster Naked 13"
• Booster Next Generation
• Booster Next Generation II
• Booster Original
• Booster Road
• Booster Rocket
• Booster Spirit

YAMAHA

• Bw's
• Bw's Bump
• Bw's Easy
• Bw's Naked
• Bw's Next Generation
• Bw's Next Generation II
• Bw's Original
• Bw's R
• Bw's Spy

Note: On Booster models after 2004, Rocket, and horizontal Minarelli crankcases, it is necessary to file a small section of the crankcase as per the attached instructions.