Aluminum piston cylinder Ø38.95 mm MBK 51 AV10 liquid Doppler ER1

Upper engine Doppler ER1 MBK 51 AV 10

New complete piston liner kit adaptable for moped, MBK 50cc moped, Motobécane 51... with AV51 engine and liquid cooling. Also consider replacing the piston pin needle cage of dimension 13x16x14 mm which is not supplied in the high engine kits (this bearing is sold separately).

This piston cylinder block kit includes

• 1 x cylinder block
• 1 x piston
• 1 x set of seals
• 1 x segment
• 2 x circlips
• 1 x gudgeon pin

Technical characteristics and dimensions of the cylinder block kit

• Mark: Doppler
• Cylinder color: gray
• Cylinder material: Nikasil treated aluminum
• Piston diameter: 38.95 mm
• Piston pin diameter: 13 mm
• Cylinder fixing centers: 43 mm and 50 mm
• 6 architecture transfers with booster exhaust
• Delivered without cylinder head