Name Metrakit Cylinder Kit "SP 3" 70cc Yamaha BW's / Slider Item No. MK802A0331 Brand Metrakit Homologation No Displacement 70cc Stroke Original Conrod Length Standard Product Line Racing Material Aluminium Engine Type 2-stroke Cooling Type AC Piston Pin Original Number of Piston Rings 1 Cylinder Head Included
The Metrakit 70cc "SP3" Yamaha BW's / Slider - MBK Booster / Stunt by renowned Spanish manufacturer Metrakit. With plenty of power, it is definitely one of the best 70cc racing cylinders. It is the little brother of Metrakit's extremely powerful "Pro Race", the only difference is in cylinder head design - this one is a monobloc cylinder head. This SP 3 version was modified and improved over its predessor, for even more power.
The Nikasil-plated aluminium cylinder comes with a single-ring piston (10mm pin, flathead). It has a "simple" oval exhaust port and 5 transfer ports allowing for excellent performance at low as well as high rpm range - between 15 - 16.
To exploit the full potential of this cylinder kit, we recommend running it with a sports or racing exhaust, a 17.5mm carburetor (at least) and last but not least a reinforced crankshaft to improve reliability.
The Metrakit 70cc "SP3" MBK Booster / Stunt is reserved for the race track and NOT street-legal.
- Suitable for (31)
Your product goes with the following manufacturers and their models:
Amico 50cc AC (1991 - 1992), Amico 50cc ac (after 1993), Amico GL 50cc AC, Amico Sport 50cc AC, SR 50cc AC (before 1994) - Minarelli vertical
Pista 2 50cc AC, Pista 50cc AC
Booster 50cc AC (1992 - 1999), Booster 50cc AC (after 2004), Booster Next 50cc AC (after 1999), Booster Next 50cc AC (before 1999), Booster One 50cc until 2013, Booster Rocket 50cc AC, Booster Spirit 50cc AC (before 2004), Booster Track 50cc AC, Stunt 50cc AC, Stunt 50cc AC CAT (after 2004), Stunt Naked 50cc AC
BW's 50cc AC, BW's 50cc AC (after 2004), BW's Bump 50cc AC, BW's Easy 50cc 2013, BW's NG 50cc AC (after 1999), BW's NG 50cc AC (before 1999), BW's Spy 50cc AC, Slider 50cc AC (before 2004), Slider 50cc AC CAT (after 2004), Spy 50cc , Target 50cc, Zuma 50cc AC, Zuma II 50cc AC
- Spare Parts
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