Cilinder - Cilinder Head

39mm - 6 Cooling Ribs

39mm - No gaskets - Nicaseal - 12mm Piston Pen

44.5mm - Pison Pen 12mm

45mm - No Gaskets - Nicaseal - Piston Pen 12mm

45mm - Piston Pen 12mm

54mm - Nicasil - 7 gates - Piston Pen 14mm - Including Dellorto PHBG W17 Gasneedle and 2 Nozzles.

53mm - Nicasil - Piston Pen 14mm - No Gaskets

57mm - Piston Pen 14mm

For 80cc