This is MB standard sized 52.01 - 52.02mm MB Race-Tour rear hub bearing which fits all Series 1, 2 and 3 Lambrettas.

A quality bearing to suit standard or tuned scooters. 

Now comes with slight improvments that standard bearings don't come with.

• Uses a large O ring which gets crushed in the casing to seal once fitted
• The inner bearing face is chamfered to aid fitting the seal

Comes with a MB seal and comes with our special O ring to help seal the bearing in place in the casing, the bearing now has a recess to locate the O ring.

Uses standard size rear hub seal 32 x 45 x 6mm.

TOP TIP: use a bit of sealer smeared into the O ring groove, stretch the O ring over the bearing and push into the groove, otherwise the bearing will sit proud.