• High performance racing valves from NCY. These are a must for any serious tuner. With stainless construction and level seats, these scream quality and performance right out of the box. Intake: Stem = 5.0mmHeight = 65.75mmValve = 28.0mm Exhaust: Stem = 5...
    $34.99
  • The rocker arm assembly for Type 1 QMB139 engines. Type 1 has a shorter head and 64mm valve stem length. If you have 69mm valve stem length and a taller head, you have the Type 2 engine and chances are your scooter is newer Product is intended as OEM...
    $19.99
  • Tailored for the Corsa Kit, this gasket set guarantees optimal compatibility, enabling your engine to perform at its peak. Whether you're upgrading for increased power or simply performing maintenance, the Polini Gasket Set offers a crucial component for...
    $10.99
  • PCV block off plate used for removing PCV system on GY6 engines. Most GY6 scooters have sub-par PCV systems often causing massive vacuum leaks that lead to poor performance. When installing this block off plate, it is highly recommended you purchase a...
    $12.99
  • Replacement engine case assembly for GY6 150 long case scooters. Includes hardware. Buffers and bearings are already pressed in. All you have to do is build a scooter engine from scratch. Product is intended as OEM equivalent. Any misuse, alteration or...
    $109.99
  • Complete 72cc iron cylinder & head kit. This works with most Chinese 50cc 4-stroke QMB139 engines. Pump up that weak engine to a respectable 72cc displacement (and stay on  budget). This kit is not indended to make your scoot a screaming...
    $59.99