Tags
banjo grinding, Brembo Brakes, grind, GTV-300, Installation, SIP Scootershop, swap bleeder valve, Vespa GTS 300
There are no videos about installing the Brembo brake calipers or any other brake calipers on YouTube that I could find (send me a link if anyone knows of a good video). I therefore spent some time reviewing the Haynes Manual and found a few entries in Modern Vespa on this subject. I also received some advice from SIP Scootershop in Germany. For those of you planning to install these, I have listed below a few other things you NEED to order and do before you start.
First you need to order the following additional parts that DO NOT COME WITH THE BREMBO CALIPER!
- Zelioni Bracket Adapter for the Vespa 300 # ZELA01FS (DAG01FSL)
- Two screws to fix the caliper on the adapter. We recommend a M10x20mm screw.
- A new set of sealing washers for the banjo since it is recommended to discard the sealing washers when you remove the banjo (brake line). Apparently these can be purchased separately from a Yamaha or Honda dealer using these part numbers: Yamaha 90430-10005-00 or Honda 90545-300-000 for the washer.
Once you have the above you can follow the instructions that will follow in a month when the weather is better and I film the job.
You also have to swap the bleeder screw and connection for brake hose. (mount the bleeder screw on top as you can see on the following pics). People who have not done this end up grinding the banjo bolt because it rubs against the inner wheel.
Example of Swapped Bleeder Valve:
Notice how the bleeder is on top and this gives more room for the banjo
Example of Ground Banjo to Clear Wheel Rim:
This picture was found on http://modernvespa.com/forum/topic111917 and was posted by jumperjohn. The Brembo Caliper comes stock with the bleeder on the bottom.
MG Driving/Riding Adventures 
Peter I really admire your gusto.
That’s going to be an interesting modification, and clearly it has challenges. Having said that, if anyone can do it, you can.
I’m looking forward to the installation video.
I’m curious, why are you doing this? I know Brembo is sought after. But I need to be educated, and who better to do that than you.
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Same answer as in previous post:
Well, what you have said is very true but let me further explain. The first 10,000 Km on the GTV was the year before my wife got her Vespa so much of those kilometers was done with two riders and luggage on the back. I remember that year since I was constantly adjusting the rear shocks between two riders and luggage and the single rider setting and inflating and deflating the tire pressure as well. Perhaps that had a bit to do with it. We also ride highway often and the Malossi are suppose to provide much more stability and better handling like your Bitubo.
The muffler is really a sound thing justified by the lack of compression gasket required. Since we do a lot of kilometers each year we tend to change tires that requires to remove the muffler. Often this compression gasket needs replacement at $ 43.0-0 each time. That is how I financially justify this, but really it is about vanity and the look and sound of it. I really like how the Fiat Abarth sounds and am hoping that this muffler will give the Vespa a bit more of a throaty sound (less like a lawn mower).
Braking is an issue with my hand. I was told by those who ride with Brembo that they can usually stop the Vespa using their pinky finger. I think that it may be a bit of an exaggeration but if it is much easier then my hand will appreciate it.
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Good morning
my name is pier and i am writing to you from italy
reading your post I decided to give the modification and install the brembo caliper with the zelioni adapter.
Once everything was assembled by my mechanic and the air removed from the circuit, the brake lever reached the end of its stroke as if the master cylinder was undersized. Did you replace that too or did the original Piaggio remain?
Thanks for your help
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No, Let the pads sit. Ride it for a bit “Carefully” and the system should sort it self out if he got out all the air out. Put a vacuum tube on caliper then tap with screw driver or small lever to get the last bit of air bubble out that hides in the caliper. There is no need to change cylinder. When I changed the pads on the BMW it took about 2-4 Kilometers before they adjusted and were back to normal. It too seemed like the lever was reaching the end but then it stiffened up. Good luck.
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