Cylinder Top Performances Black Trophy 70cc cast iron Yamaha BW's / Slider

Cylinder Kit Top Performances Black Trophy 70cc, Minarelli vertical AC, worthy successor of the Trophy by Top Performances.

The kit Includes:

• 70cc Cast Iron Cylinder , d=47mm, 5 transfer ports + simple outlet
• 2-ring piston, 10mm piston pin
• High Compression cylinder head, aluminium
• Gasket kit

The Black Trophy cylinderis a sports / entry level tuning cylinder and ideal for everyday use. Compared to the Trophy, it has only been slightly modified, only the piston has been given a special coating. The cylinder is extremely durable and reliable. The performance it really impressive; acceleration is noticeably improved and top speed is slightly increased, too. It can achieve 7 to 8 HP with the right setup.

An excellent choice if you are looking for the perfect compromise between performance and durability / reliability!

• Not street-legal.
• Squish clearance  is preset by the manufacturer, a base gasket is supplied.
• Run in: 300km (150km with ½ throttle and 150km with ¾ throttle).
• If you want to keep the oil pump, we recommend using Stage6 oil with optimal flow characteristics to avoid clogging the pump.

Min. Configuration

• • Exhaust
  • BR9HS spark plug
  • Reinforced small end bearings
  • Carburetor 17,5 mm
  • Sport CVT
  • V-belt min. 16 mm

Max. Configuration

• • Exhaust
  • Reinforced small end bearing
  • BR9HS spark plug
  • Woodruff key, offset
  • Carburetor 19mm
  • Reed valve
  • Air filter insert
  • Sport CVT
  • Reinforced V-belt
  • Sport Clutch
  • Secondary gearing 14-43