
![]() Tue Jan 02, 2018 11:15 am
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
![]() Tue Jan 02, 2018 12:44 pm
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
![]() Sat Jan 06, 2018 12:17 pm
Banned
2:6
Joined: 11 Jan 2007
Posts: 8217 Location: San Francisco |
|
![]() Sun Jan 07, 2018 8:04 am
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
![]() Mon Jan 15, 2018 1:35 pm
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
![]() Tue Jan 30, 2018 11:40 am
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
AnnDee4444 wrote: The front caliper carrier on a MP3 looks very similar to the GTS... any chance this would be a direct swap for the larger disc & caliper? I can't seem to find any good photos of one. The MP3 caliper carrier (part # 2B0006085) will more than likely fit on a GTS, however the brake caliper bolts are at an angle (compared to the shock mount) and meant for non-floating calipers (rear GTS & front LX). I'm not confident that a 240mm disc with a non-floating caliper is an upgrade over a 220mm disc with a floating caliper. I don't own an LX, but swapping to the MP3 carrier/disc(and caliper?) would be a way to use a 240mm disc on the front (with a 12" wheel). Stoppies anyone? |
![]() Sun Aug 19, 2018 8:55 pm
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
Sorry to bring this thread back from the dead, but I saw that the MP3 now has 258mm wavy rotors. 13" wheels are probably required for clearance.
https://www.cycleworld.com/2019-piaggio-mp3-500-sport-refines-three-wheels ![]() ![]() |
![]() Mon Aug 20, 2018 2:00 am
Banned
2:6
Joined: 11 Jan 2007
Posts: 8217 Location: San Francisco |
|
Interesting and nice!
Looks like they may be using the rear GT caliper to space it out by 10mm. Did the same on my LX to go from a 200 to 220 disk. ![]() Here's the current MP3 caliper from the top of this page: ![]() And a close up from the new MP3: ![]() note the gap between the caliper and bracket |
![]() Mon Aug 20, 2018 6:46 am
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
oopsclunkthud wrote: Looks like they may be using the rear GT caliper to space it out by 10mm. oopsclunkthud: Did you ever get the correct side MP3 caliper carrier? Any idea how to determine if one of these 258mm non-floating caliper setups would be better than the stock GTS? |
![]() Mon Aug 20, 2018 8:52 am
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
I wonder how far off this bracket would be: https://www.sip-scootershop.com/en/products/adaptor+malossi+for+oversize_m189800
![]() |
![]() Fri Nov 16, 2018 7:20 pm
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
![]() Sat Dec 22, 2018 6:46 am
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
SIP now offers a radial adapter & caliper kit for up to a 250mm disc (or 260mm?). The caliper is 4 piston @ 24mm each. https://www.sip-scootershop.com/en/products/brake+kit+sip+radial+front+_mvbrk002
![]() There's even a kit for the rear: https://www.sip-scootershop.com/en/products/brake+kit+sip+radial+rear+_mvbrk004 ![]() |
![]() Thu Dec 27, 2018 2:28 pm
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
SIP also now sells a complete caliper carrier conversion.
https://vespaforum.de/viewtopic.php?f=17&t=48005&sid=dd466792a3974a60dbd60f8777834ecf ![]() |
![]() Mon Feb 04, 2019 10:09 pm
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
![]() Mon Feb 04, 2019 11:15 pm
Banned
2:6
Joined: 11 Jan 2007
Posts: 8217 Location: San Francisco |
|
![]() Tue Feb 05, 2019 2:29 pm
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
oopsclunkthud wrote: funny, I've been trying to see if I can go to a smaller disk on the rear, like the 200mm from the LX front. Just out of curiosity, do you want a smaller rear brake so that you can run a smaller wheel? This might be useful for Scomaldi type swaps. |
![]() Tue Feb 05, 2019 4:41 pm
Banned
2:6
Joined: 11 Jan 2007
Posts: 8217 Location: San Francisco |
|
Hello All,
There is a very simple brake update for the GTS, if running 13" wheels, which cost about £170 (EUR190/$215) depending on taxes, etc. This will give you a 250mm front disc, standard caliper and use sintered pads. not full Brembo, but cost effective for servicing and not overkill. Parts have been available for a while: BRAKING adapter bracket - POW44 MALOSSI (Galfer) brake disc - 6217150 The parts were designed by different suppliers to put bigger brakes on the Gilera Runner earlier performance 50, 125/180 models, but will fit the GTS. Based on Oops previous calculations the increased disc diameter, combined with better pads and the LX master cylinder may give a real OEM+ brake upgrade, even with a 240mm disc. I have the bracket and a machines late Piaggio MP3 front disc (258mm machines to 250mm) for the OEM+ look and I'm awaiting a quote from a reputable brake system manufacturer for some 250mm discs, other than the Malossi ones. Additionally, I'm looking at getting a similar bracket CNC'd for a 240mm disc on the GTS for general fitment on 12 or 13" wheels. In theory, the proposed bracket would allow the use of the normal 240mm MP3 disc on the GTS front, but also allow the Late 300-500 MP3 258mm disc to be used on the Gilera Runner ST models (which currently runs a 240mm disc. ![]() ![]() ![]() |
![]() Mon Jun 10, 2019 9:31 am
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
![]() Mon Jun 10, 2019 10:58 am
Banned
2:6
Joined: 11 Jan 2007
Posts: 8217 Location: San Francisco |
|
AnnDee4444 wrote: Found the bracket: https://www.sip-scootershop.com/en/products/adaptor+braking+oversize+_pow44 |
Additional brake upgrades - Rear
Hello All,
In addition to my ideas on available parts for cheap/simple OEM+ brake upgrades, I have just discovered a brake caliper bracket for the rear of the Leader/Quasar engine to allow 240mm brake discs (Gilera Runner ST /MP3 front) on the rear of the Vespa GT/GTS or any other which previously use the 220mm. This would be a simple plug and play, bolt on disc and bracket. the part is used on the Giler DNA 125/180 machines and is part number 597326, I have a new one on order, so once I get chance I will add the pics of the 250mm front set up and 240mm rear. |
![]() Mon Jun 24, 2019 9:52 am
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
Re: Additional brake upgrades - Rear
lennymbsc wrote: Hello All, In addition to my ideas on available parts for cheap/simple OEM+ brake upgrades, I have just discovered a brake caliper bracket for the rear of the Leader/Quasar engine to allow 240mm brake discs (Gilera Runner ST /MP3 front) on the rear of the Vespa GT/GTS or any other which previously use the 220mm. This would be a simple plug and play, bolt on disc and bracket. the part is used on the Giler DNA 125/180 machines and is part number 597326, I have a new one on order, so once I get chance I will add the pics of the 250mm front set up and 240mm rear. |
Sorry for the delay, been travelling for work and had to get some time in the garage.
So the front, the caliper bracket needed a little dressing as the disc bolts were fouling slightly on the back of the bracket (where the disc bolt heads pass) needed dressing as the material is quite thick. But the brakes fit nice under the 13" rims and I just need to bleed the brake up (as used a recon'd caliper). I haven't fitted the LX master yet a will see ho this feels first. ![]() |
![]() Tue Jul 23, 2019 1:32 pm
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
The inital set up was done with an MP3 258mm rotor, which I had machines down to 250mm for the set up. There is a Malossi disc which will go straight on (and save grinding the bracket to cleat the disc bolts, as has counter sunk screws)
I need to follow up with EBC who were drawing up and quoting on some 250mm VR discs. |
![]() Mon Jul 29, 2019 9:16 am
Hooked
GTS 250
Joined: 26 Apr 2008
Posts: 324 Location: California |
|
lennymbsc wrote: The inital set up was done with an MP3 258mm rotor, which I had machines down to 250mm for the set up. There is a Malossi disc which will go straight on (and save grinding the bracket to cleat the disc bolts, as has counter sunk screws) I need to follow up with EBC who were drawing up and quoting on some 250mm VR discs. I hope someday a company will make a bracket to use the 258mm rotor and OEM caliper. It seems like it would offer the best low-cost but OEM quality braking improvements. |
Hello,
The issue with is contact between the rotor mounting screws (the Malossi rotor has counter sunk ones) and the Braking bracket (as the material is quite thick. I have dressed the back of the bracket and edges which contact the brake pad ( to ensure pad movement and zero contact with the rotor screw heads. I also have a set of 250mm VR discs in manufacture at EBC, which work out at £45 each. I will need to purchase the MOQ (minimum order quantity) of 10 parts and they will become a purchasable part. If anyone fancies a 250mm disc, let me know. I can also get the brackets for about £40. A nice little upgrade. I'll get the rear brake set up photographed next. ![]() |
All Content Copyright 2005-2022 by Modern Vespa. All Rights Reserved.
Modern Vespa is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.
Shop on Amazon Smile with Modern Vespa