Modern Vespa

Hi everyone
Can someone in the group help me with the dimensions for the rear bleeder screw on a GTS 300 2011?
Is it a M10 X 1mm thread?
This is what I think might work but does anyone know the length size of the screw?
Thanks in advance
Nick[img][/img]

Bump.

Welcome to MV Nick.

I looked at various parts diagrams for your '11 300GTS and every schematic shows the bleeder screw as part of the caliper, but no part number or description.

I did find an old MV post talking about the front bleeder screw on an MP3.

Anybody know the brake fluid bleeder screw size?

Are you bleeding both the front and rear? Perhaps you can pull the front and inspect/compare? I am not 100% they are exactly the same, but it's one more data point.

My service manual also did not specify.

There are a handful of mechanics and parts folks on MV. Perhaps someone has a spare they can pull and measure.

Another option is to contact Scooterpartsco, SIP, or Scooterwest and see if they can advise.

According to the Scooterwest video and website, GTS uses 10mm bleed in back, 8mm in front. I bought the 10mm tool to bleed my rear. Robot's video says you don't need a bleeder tool to do the front. We'll see.