This MBD design is probably Mark's most copied invention, invented way back in 1987 and is probably the most copied part ever made for a Lambretta.

Always insist on genuine MBD parts and not copies.

This item is essential in any tuned scooter and we recommend it even in a standard scooter.

This chain slipper evolved because we found that the standard Lambretta top chain slipper wasn't strong enough to do its job in a Lambretta engine and can be quite dangerous when it snaps.

We had this item cast in aluminium with a special nylon piece attached to the top.

We recommend leaving about 6mm play (total up and down) in your chain.

People sometimes ask for a new piece of nylon for their chain slipper when it has worn down a bit but you do not need it - the rollers of the chain will run on the nylon.

We have never seen a chain wear all the way through the nylon on one of our slippers.

We personally recommend that you still use a bottom chain guide in conjunction with this item.

These are also known as chain adjuster or chain tensioner.