Brembo calipers fitted to GTS, need some advice
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Member
GTS 300
Joined: 12 Mar 2013
Posts: 16
Location: UK
Wed Mar 20, 2013 4:35 pm quote
Hi. I fitted a new front caliper to my GTS. When I fitted the caliper banjo it touched the rim. I ground the banjo down but I didn't want to take too much material away. I have clearance, about 1 mm but this is close to the rim but does it matter? The banjo will never touch the rim as it moves with the wheel. What do you guys think?

Also the from brake feels a lot different to the stock brake, is it because there are four pistons, i seems I have more feel. The brake was bled well, it took ages! I haven't test drove the scooter yet.

Pics:




Ossessionato
GTS, LX, VSD, VSX, VNX, LD 125, Chucky, LI125
Joined: 21 Oct 2005
Posts: 4181
Location: San Jose CA
Wed Mar 20, 2013 4:45 pm quote
I had to grind the bolt down a bunch....but not before it scratched the hell out of my powder coating.

You will like it, I consider it a 'must do' mod.

R
Ossessionato
GTS, LX, VSD, VSX, VNX, LD 125, Chucky, LI125
Joined: 21 Oct 2005
Posts: 4181
Location: San Jose CA
Wed Mar 20, 2013 4:47 pm quote
Is the mount bracket from Jettin?

R
Member
GTS 300
Joined: 12 Mar 2013
Posts: 16
Location: UK
Wed Mar 20, 2013 4:51 pm quote
Do you think it's safe then?

The bracket is by Zelioni through SIP scooter shop.

Does anyone know what size the banjo is - M10 x 1.5?

Molto Verboso
2018 GTS300 Super Sport - Donatello Vespace
Joined: 22 Dec 2012
Posts: 1450
Location: Toronto, Ontario Canada
Wed Mar 20, 2013 5:03 pm quote
Have the same on my stock rim with a BiTubo shock. Absolutely love it. No damage as it was dealer installed. Why not put a slight offset to your wheel?

image.jpeg

Ossessionato
GTS, LX, VSD, VSX, VNX, LD 125, Chucky, LI125
Joined: 21 Oct 2005
Posts: 4181
Location: San Jose CA
Wed Mar 20, 2013 7:45 pm quote
jumperjohn wrote:
Do you think it's safe then?

The bracket is by Zelioni through SIP scooter shop.

Does anyone know what size the banjo is - M10 x 1.5?

Mine is about the same...very very close to the rim.

Have more than 20k miles on it and no problems.

I have the Jettin adapter on the bike currently, but have the same Zelionni adapter in the garage to try.

The Brembo caliper I purchased has the bleeder on top and the 'banjo' below. Hoping it works out better, will report back when I get it onto a bike.

Question: What is that front shock? Its lovely.

R
The Host with the Toast
Joined: 13 Jun 2008
Posts: 7198
Location: SoCal
Wed Mar 20, 2013 8:00 pm quote
my is from jetein and installed fine
Addicted
Joined: 27 Feb 2006
Posts: 987
Location: Orange County
Wed Mar 20, 2013 8:11 pm quote
Re: Brembo calipers fitted to GTS, need some advice
Yes the Bleeder goes on the top and the line on the bottom.
Member
GTS 300
Joined: 12 Mar 2013
Posts: 16
Location: UK
Thu Mar 21, 2013 12:49 am quote
Hi all, thank you for your responces.

The suspension is by Zelioni, looks great and works well too.

Can I ask, so the consensus is that the calliper fitted looks fine and won't cause problems..............

EDIT:

After reading posts - Can someone confirm. I think this caliper is set up incorrectly!

Can I simply swap the bleed valve to the top of the caliper, are they the same thread? I'll give it a go when I get home, dam...........
Member
GTS 300
Joined: 12 Mar 2013
Posts: 16
Location: UK
Thu Mar 21, 2013 3:10 pm quote
So I managed to get more room to the rim.



And it looks good, but there is a down side............



The bracket is aluminum and I tried to torque it to the brake caliper settings and stripped the thread, no idea why I thought that it would be a good idea. So a new one is ordered, copperslip and a nip with an alan key this time.

Addicted
Joined: 27 Feb 2006
Posts: 987
Location: Orange County
Thu Mar 21, 2013 7:49 pm quote
jumperjohn wrote:
Can I simply swap the bleed valve to the top of the caliper, are they the same thread? I'll give it a go when I get home, dam...........
yes same threads top and bottom.
Member
GTS 300
Joined: 12 Mar 2013
Posts: 16
Location: UK
Fri Mar 22, 2013 2:26 am quote
Thanks, I'll swap them over.

I ordered a helicoil kit to repair the thread too. All good fun but slightly peeved that the caliper is sold as a Vespa GTS replacement item that there is so much fettling to do!
Molto Verboso
'05 Vespa Granturismo
Joined: 22 Apr 2008
Posts: 1610
Location: Rancho Cordova, California
Fri Mar 22, 2013 7:07 am quote
The stock brakes on my two GT200s are so good that I can't immagine investing in an expensive after market set. What is supposed to be the advantsge?
Veni, Vidi, Posti
Reprehensible Misinformant
Joined: 24 Oct 2005
Posts: 7568
Location: Winchester, California
Fri Mar 22, 2013 7:12 am quote
Richard H. Lemmon wrote:
The stock brakes on my two GT200s are so good that I can't immagine investing in an expensive after market set. What is supposed to be the advantsge?
Im with you Richard. I don't ride to that extreme anyway that the factory brakes arent jus' fine for me.
Hooked
Joined: 24 Mar 2011
Posts: 488
Location: FI PKS
Fri Mar 22, 2013 7:36 am quote
You will know what is a good brake once you have tried one. And it sure looks good too.
SoulSurferr wrote:
Why not put a slight offset to your wheel?
Do you mean a spacer between hub and rim? I don't think it's a good idea since it will mess up steering geometry.
Ossessionato
'20 300GTS Super Tec '09 250 GTSie '75 Rally 200 '79 P200 '09 Stella 221
Joined: 13 May 2012
Posts: 2565
Location: Midway, Kentucky
Fri Mar 22, 2013 8:48 am quote
I'm running a Brembo caliper with the Jettin bracket and didn't have to do any modifications to the banjo fitting or bolt.

photo.jpg

Ossessionato
'20 300GTS Super Tec '09 250 GTSie '75 Rally 200 '79 P200 '09 Stella 221
Joined: 13 May 2012
Posts: 2565
Location: Midway, Kentucky
Fri Mar 22, 2013 8:50 am quote
You appear to be running a different rim than the standard 250-300 gts rim. Maybe this is your issue?
Member
GTS 300
Joined: 12 Mar 2013
Posts: 16
Location: UK
Fri Mar 22, 2013 3:39 pm quote
Yes, a different rim plus my bleed valve is in the wrong place!

I'll take a look tomorrow.

To answer the changing brake question. 80% of braking is performed with the front brake & the standard isn't great, I've had Brembo brakes before, they will give much more feel and control.
Hooked
Joined: 24 Mar 2011
Posts: 488
Location: FI PKS
Fri Mar 22, 2013 11:36 pm quote
jumperjohn wrote:
Yes, a different rim plus my bleed valve is in the wrong place!
It could be the reason why you had hard time bleeding the brakes? Usually bleed valve work better if it's up. As air is lighter than brake fluid, air goes up in the caliper.
Member
GTS 300
Joined: 12 Mar 2013
Posts: 16
Location: UK
Mon Mar 25, 2013 3:36 pm quote
Hi and thanks to all who responded.

To fix this issue I swapped the bleed to the top, this was the obvious place for it due to the caliper and banjo now not clashing with the wheel, therefore new banjo fitted. Bleeding was also better!








I also fixed the stripped thread in the aluminum adapter plate by putting in Helicoils, a lot stronger solution than just the aluminum thread.
Addicted
2010 gts 300 super. 09 MP3 500 lite
Joined: 02 Apr 2013
Posts: 620
Location: tampa
Sat Apr 27, 2013 12:59 pm quote
anyone know what motorbike this caliper is from?
The Host with the Toast
Joined: 13 Jun 2008
Posts: 7198
Location: SoCal
Sat Apr 27, 2013 5:08 pm quote
Its from Jettin
Addicted
2010 gts 300 super. 09 MP3 500 lite
Joined: 02 Apr 2013
Posts: 620
Location: tampa
Sat Apr 27, 2013 6:22 pm quote
I meant what bike is it from so I can find a used caliper off ebay
Hooked
GT200
Joined: 13 May 2010
Posts: 158
Location: singapore
Thu Aug 22, 2013 4:49 am quote
I have a caliper from the piaggio x9 they run brembos all round. do you guys reckon the jettin or zelioni adapter would fit fine.

IMG-20130822-WA0003.jpg

Ossessionato
'20 300GTS Super Tec '09 250 GTSie '75 Rally 200 '79 P200 '09 Stella 221
Joined: 13 May 2012
Posts: 2565
Location: Midway, Kentucky
Thu Aug 22, 2013 4:57 am quote
jerryd wrote:
I meant what bike is it from so I can find a used caliper off ebay
The Brembo calipers used for this conversion are from a Ducati 906 - Monster 900 - Aprilia STR250 and also found on various older Guzzi models.
Hooked
GTV 300 2012 Espresso
Joined: 04 Jun 2012
Posts: 108
Location: Cornwall, Ontario, Canada
Wed Mar 26, 2014 2:44 am quote
Swap the Bleeder
I ordered Brembo Caliper and there are a few other things required including the need to swap the bleeder valve. If you swap the bleeder, you do not need to grind the banjo bolt.

http://vespaadventures.ca/2014/03/25/brembo-brakes-planning-stage/

reversed bleeder.png

Addicted
1979 P200E, 2006 Piaggio Fly 150, 2010 GTS 300 Super
Joined: 03 Oct 2013
Posts: 619
Location: Atlanta
Wed Mar 26, 2014 3:42 am quote
When I put the Jettin adaptor and Brembo on, I didn't have any intereference issue. The banjo is close but not unreasonably close. I've put a couple of hundred miles on it with no issues.

GTS 300 Shock Installation (12).JPG

Hooked
GTV 300 2012 Espresso
Joined: 04 Jun 2012
Posts: 108
Location: Cornwall, Ontario, Canada
Wed Mar 26, 2014 3:50 am quote
Difference in Adapters
I guess it is the difference between the Zelioni Adapter and the Jettin. When I ordered from SIP Scootershop, it comes with the Zelioni Adapter and they suggest the swap.
Ossessionato
'20 300GTS Super Tec '09 250 GTSie '75 Rally 200 '79 P200 '09 Stella 221
Joined: 13 May 2012
Posts: 2565
Location: Midway, Kentucky
Wed Mar 26, 2014 6:46 am quote
This is definitely the best bang for the buck for the gts. I replaced the original pads that came with mine with sintered pads and the braking is that much better again. They might be a bit too much for someone that hasn't ridden a lot since they will lock the front wheel if you snatch the brakes.
Addicted
1979 P200E, 2006 Piaggio Fly 150, 2010 GTS 300 Super
Joined: 03 Oct 2013
Posts: 619
Location: Atlanta
Wed Mar 26, 2014 8:54 am quote
Willie B wrote:
jerryd wrote:
I meant what bike is it from so I can find a used caliper off ebay
The Brembo calipers used for this conversion are from a Ducati 906 - Monster 900 - Aprilia STR250 and also found on various older Guzzi models.
Willie, do you know which Brembo has been used for the rear of the GTS? SIP has listed a 34mm and a Zelioni adaptor for the rear. This is the only information that I have found on the rear to date.

Thanks.
Hooked
GTV 300 2012 Espresso
Joined: 04 Jun 2012
Posts: 108
Location: Cornwall, Ontario, Canada
Mon Apr 14, 2014 5:46 am quote
What should the torque value be for the Brake Banjo?
jumperjohn wrote:
So I managed to get more room to the rim.



And it looks good, but there is a down side............



The bracket is aluminum and I tried to torque it to the brake caliper settings and stripped the thread, no idea why I thought that it would be a good idea. So a new one is ordered, copperslip and a nip with an alan key this time.

Hooked
GTV 300 2012 Espresso
Joined: 04 Jun 2012
Posts: 108
Location: Cornwall, Ontario, Canada
Fri Apr 18, 2014 3:22 pm quote
Done, My Installation with Malossi Shocks as well.
http://vespaadventures.ca/2014/04/18/installation-of-malossi-shocks-brembo-brakes/

The Banjo and bleeder is really close but does not touch.

Huge difference with the brakes and the shocks. Amazing!

small1.JPG
Brembo Brakes and Malossi RS 24

small2.JPG
Real close to rim but nothing touches...

Molto Verboso
'05 Vespa Granturismo
Joined: 22 Apr 2008
Posts: 1610
Location: Rancho Cordova, California
Fri Apr 18, 2014 9:44 pm quote
I have been watching this thread for over a year now and still do not know what the advantage of this expensive aftermarket brake is supposed o be.
Hooked
GTS 250ie "gone" & others vintage
Joined: 25 Jan 2011
Posts: 356
Location: Paris, France
Fri Apr 18, 2014 11:51 pm quote
EBC HH sintered pads for standard caliper are a great upgrade for less issues and money.
Hooked
GTV 300 2012 Espresso
Joined: 04 Jun 2012
Posts: 108
Location: Cornwall, Ontario, Canada
Sat Apr 19, 2014 3:06 am quote
like having power assisted braking
I added them to reduce the squeeze effort to brake since I have stiff and sometimes swollen fingers. But yesterday I was riding with my wife who has a GTS300 and twice on country roads I switch bikes to compare and determine the real value of this addition. My grip strength in my right hand is only 38 % of original after surgery. I found that travelling at 60 miles/hour down hill was the most noticeable comparison. The Brembo brakes smoothly, evenly with little effort much like power assisted brakes. The Malossi shocks also helped by keeping the front end stable. I had to squeeze much harder on the GTS with stock brakes and shocks and the bike dipped. Did they both stop? YES. If a deer was in front of me I would prefer having the Brembo. I believe the stopping distance is shorter. My wife was requesting more notice when I was going to stop or pull over.

Is it a needed modification? Of course not. Us it nice to have? Absolutely. Does it help reduce my finger soreness and allow me to ride longer? I believe so. Was it worth it for me? YES.

Hope this helps
Ossessionato
'20 300GTS Super Tec '09 250 GTSie '75 Rally 200 '79 P200 '09 Stella 221
Joined: 13 May 2012
Posts: 2565
Location: Midway, Kentucky
Sat Apr 19, 2014 6:54 am quote
Richard H. Lemmon wrote:
I have been watching this thread for over a year now and still do not know what the advantage of this expensive aftermarket brake is supposed o be.
If you use your scooter to run to the pool or down the street for a pack of smokes, I'm thinking the brakes on your GTS work adequately. If you get out and ride on heavily traveled roads or the freeway and ride flat out as some do, the stock brakes aren't very effective at bringing the 326 pounds of mass to a safe stop. The Brembo calipers have more clamping power and more pad surface area than the original caliper. Combining the calipers with sintered pads increases the braking efficiency that much greater. It takes less effort to brake the scooter more efficiently with this set up. Richard, considering you're running a sidecar rig, your scooter weighs more and would definitely benefit from these. Adding the sintered pads does increase the effective of the Brembos, but shouldn't be done if the rider lacks a lot of experience with brake modulation. Snatching the brake lever with this setup could find you and your scooter on the ground as it's easy to lock the front wheel in extreme braking situations. I'm on my second set of sintered pads and have been amazed at the lack of wear to the original rotors.
World Traveler
2007 LX150 Daring Plum Leonardo Da Vespa
Joined: 02 Jul 2006
Posts: 29304

Sat Apr 19, 2014 7:52 am quote
I wish we could have the Brembos on the LX series. Richard, i will add if you ride your scooter exclusively these aren't just frivolous mods. I have 27,000 miles on mine and no way could my back have taken the stock shocks on our roads. I threw on a HID and some Led's that synch with my brake light to help with visibility. Riding for fun and having the scooter for your only transp is two different animals IMHO.
Lurker
Joined: 29 Apr 2014
Posts: 4

Tue Apr 29, 2014 11:16 pm quote
judy wrote:
I wish we could have the Brembos on the LX series. Richard, i will add if you ride your scooter exclusively these aren't just frivolous mods. I have 27,000 miles on mine and no way could my back have taken the stock shocks on our roads. I threw on a HID and some Led's that synch with my brake light to help with visibility. Riding for fun and having the scooter for your only transp is two different animals IMHO.
I mounted on my piaggio zip sp with 10inch wheels. The stage6 4 piston caliper. So it wil fit on the lx series also

IMG_20140301_170426794.jpg

World Traveler
2007 LX150 Daring Plum Leonardo Da Vespa
Joined: 02 Jul 2006
Posts: 29304

Wed Apr 30, 2014 8:25 am quote
Very nice. Rockin it and thank you. WANT. BTW a warm aloha and welcome to the forum from Hawaii. Where did you get it and do you know the part number? Thanks
Lurker
Joined: 29 Apr 2014
Posts: 4

Thu May 01, 2014 8:06 am quote
Thanks for the warm welkom! https://www.scooter-attack.com/shop/#!/en/Brakes/Adaptors/S6140063-4-Piston-Brake-Caliper-Adaptor-for-Stage6-R-T.html here a link from a shop that sales them. There is a guy (petit pest on facebook) in italy that is making adapters so you stil have a tacho. I've bought mine from him

Last edited by jonathann on Sun May 04, 2014 11:21 am; edited 2 times in total
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