CNC machined brake drum attachments SIP Performance rear for Vespa models with a 4 hole attachment.

The attachment for closed wheels with a 4 hole attachment are long out of production and have for some time now only been available from India with regrettably questionable quality.

• Fine and coarse cog teeth
• M8 and M10 versions
• 16.0mm and 21.5mm stud lengths

The SIP brake drum mounts are high precision CNC machined. Depending on the Vespa model, there are different stud versions M8 or M10. Also the gearing of the recording is depending on the model either fine or coarse.

The studs are specially manufactured are fixed by pulling into the brake drum mount (cone / counter-cone). Therefore they fit only with the SIP brake drum mounts. The precise milling prevents twisting. The brake drum mounts are available incl. stud bolts or without stud bolts.

The length of the studs can be freely selected:

• Road Version with 16mm bolts: for original rim and tires.
• Sport Version with 21.5mm bolts: for use with spacer and thus tires up to 4.00-8 or 100`90-10 possible

For individual claims to the screw connection can also be welded, for example, modified screws or studs. The original part is similar. However, this should only be done by experts, because with a chassis part is to be paid particular attention to safety.

Conclusion: The perfect solution when restoring a Vespa or preparing one for sporting use including spacers and wider wheels/tyres.