Skorpion Sport brake upgrade.

[phoenix76rb]

After finally replacing the fork seals on my 1995 Skorpion Sport, it was time to upgrade the brake system. Even after cleaning all the fork oil off the front brake disc, and replacing the brake pads, the original equipment Grimeca brake master cylinder and caliper simply were not up to the task of stopping the bike even in normal street traffic.

I bought a Brembo P4 30/34 caliper from an Italian online company (CarpeMoto) and a PS13 master cylinder (from OPPRacing) only to find that the master cylinder did not fit with the stock handlebars. There is interference between the stub for the banjo fitting, and the aluminum boss for the clip-on on the right hand side. Well, I never liked those handlebars anyway!

After some online research, I bought a set of Woodcraft 41 mm clip on’s that they market for the 2015 to 2018 model year Yamaha R3 models. They fit perfectly, and actually raise the handlebars about an inch and a half, which is helpful for me because I have relatively short arms with a 32 inch inseam. Makes the riding position more comfortable for me around town. Turns out there was one more modification I needed to make, because even with the thinner aluminum boss on the wood craft clip on, there was still interference with the master cylinder stub. I had to add a second far side handlebar clamp inside the master cylinder to gain the extra clearance I needed.

After that it was just a question of drilling holes for the handle bar switchgear, and adjusting and lining everything up and bleeding the brakes. The stopping of the motorcycle is transformed; much more like my single desk Ducati 750 SS from back in 1992, and much safer in modern stop and go traffic!

[phoenix76rb]

The master cylinder “bodge “

[jpmsteadi]

Very nice Tim! Good feeling brakes make all the difference!

[phoenix76rb]

Thanks, this really makes the difference between enjoying this bike and not.

[serow6]

Going to give this a try on one of my MZs. All the parts you listed are still available a few years later.

Fingers crossed!

[DAVID THOMPSON]

the picture says getting the fluid reservoir full at the handle bar is a lot of fun
can be done by leaning bike and turning fork but getting some one to help may work

on a flush and clean up forcing fluid in from caliper works best to get the air out of the line

[Puffs]

Following a biased and flawed moderator choice (someone posting aggressive personal attacks is rewarded, while my technical posts are removed - behind my back & without any justification!), I have withdrawn from this forum.