Lambretta Race-Tour, Piston kit, 69.50mm, 39mm crown, piston port cylinders, forged, MB
£171.44
£142.87
In stock
SKU
6950PP39
69.50mm Race-Tour piston port piston kit, 39mm crown height MB
This is one of our MB forged Race-Tour piston kits these are the strongest most versatile piston ever made for a Lambretta scooter. It provides better than Japanese quality without the additional expense of having to change your con-rod.
Piston dimensions;
- Piston size - 69.50mm
- Engine size - 220
- Induction type - Piston port
- Piston crown height - 39.00mm
- Piston dome - 7mm
- Skirt - 70.50mm
- Con rod length - 107 110mm
- Gudgeon pin - 16mm
- Small end bearing width - 20mm
The piston kit includes;
- Piston
- Piston rings
- Circlips
- Gudgeon pin
Suitable for large block cylinders;
- Cast Iron 200
- Rapido 200
- SIL 200
- Rapido Road/Race 200
- Mugello 200 (replate oversize)
- Race-Tour 200 (replate oversize)
It is not designed for reed valve type cylinders but is strong enough to be modified for one.
| Brand | MB Racetour |
|---|
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- The strongest most versatile piston ever made for a standard or tuned Lambretta.
- A full range of sizes in 0.5mm increments from 64mm to 71mm.
- Piston kits weight between 244g and 286g.
- To date over 500 pistons have been made with not one broken piston.
- Fed up of poor piston quality and supplies in the past, MRB invested heavily in these pistons.
- Designed by Mark Broadhurst and piston supplier Cegway who has a history of Formula one piston design.
- Tooling was made in the UK and shipped to America where the forgings are done, and machined once back in the UK.
- Recommended piston to bore clearance for Cast iron cylinders is .003'' - .0035''
- Recommended piston to bore clearance for alloy cylinders with iron liners is .002'' -.0025''
- Recommended piston to bore clearance for Nicasil or Ceramic plated cylinders is .0015 - .002''
- Use only unleaded fuels, avoid the super unleaded type fuels.
- Use fully sinthetic oils.
- For long lasting reliability, once run in check your ring gap at 1000 - 1500 miles, replace rings if the ring gap has increased beyond acceptable limits.
- Made from the latest modern alloy material for 2-stroke engines.
- The strongest purpose made forged Lambretta piston available to date.