68C Posted March 26, 2014 Share Posted March 26, 2014 Due to hand arthritis problems I have modified my V11 Rosso Corsa braking to mimic the older Guzzi linked brakes, the footpedal working one front disc and the rear disc. The only problem is the front master cylinder is not really matched to a single disc making it stiff and wooden. Does anyone know the part number of a Brembo master cylinder that looks like the original item but has a smaller piston, alternatively of any other bike that may have had such an item? I am keen to keep the original look so it matches the clutch master cylinder. 1 Link to comment Share on other sites More sharing options...
nuevototem Posted March 26, 2014 Share Posted March 26, 2014 Hi, you can use the California vintage parts cos it have a combined braking too! Best regards! Link to comment Share on other sites More sharing options...
AndyH Posted March 26, 2014 Share Posted March 26, 2014 Like the idea! Are you using some kind of proportioning valve and is the rear master cylinder the right diameter for this as well. Strikes me that the V11 original might now be too small to drive two slave cylinders and need too much travel to apply the requisite force. Any thoughts? Link to comment Share on other sites More sharing options...
68C Posted March 26, 2014 Author Share Posted March 26, 2014 Hi NUEVOTOTEM,Does the Cali have the remote reservoir like the V11? I am keen to have it match the clutch master cyl.Hi ANDY H!The rear is a little long in travel but seems acceptable. I am considering adding a second rear master cylinder with a 'Y' shaped link, one for the front and one for the rear, I could even mess around with the braking proportioning then. The disc size seems Ok but worried about rear pad life.My old T3 just has a simple union joining the two pipes and the brake switch with no moving parts. I have got hold of a Cali proportioning valve which may come into play if I don't go the twin rear master cyl route. Some later Calis even have a ride height sensor like most cars, the less weight at the rear means less braking force to the rear. then of course there is ABS and radar controlled auto brakes and........I think I'll go and lie down. Link to comment Share on other sites More sharing options...
GuzziMoto Posted March 26, 2014 Share Posted March 26, 2014 For the front brake M/C, perhaps one from a single disc V7. Not sure of the reservoir set up on that. There are also plenty of Ducati's, mainly entry level ones, that have a single front disc. Link to comment Share on other sites More sharing options...
Skeeve Posted March 28, 2014 Share Posted March 28, 2014 Does anyone know the part number of a Brembo master cylinder that looks like the original item but has a smaller piston, alternatively of any other bike that may have had such an item? I am keen to keep the original look so it matches the clutch master cylinder. Dunno if it matches the clutch master, but the Jackal came w/ a single front disc. Guzzi sold a dual-disc kit for it @ one point, with a 2nd disc & new master cyl... maybe find a shop who did the upgrade for a customer & still has the original kicking around in spares? Link to comment Share on other sites More sharing options...
sp838 Posted March 28, 2014 Share Posted March 28, 2014 These guys have tons of Brembo stuff, including the "Goldline" masters, calipers and rotors: http://www.oppracing.com/ Here is the page for OE brembo front mc's: http://www.oppracing.com/category/1011-oe-front-brake-master-cylinders/ This one is 1mm smaller than ours, which I believe is 16mm: http://www.oppracing.com/product_display/30777-brembo-oe-front-brake-master-cylinder-psc15-gold-without-reservoir-wlever49-reg/ If that's still too much, this one has a 13mm piston: http://www.oppracing.com/product_display/32311-brembo-oe-mc-ps13-black-without-reservoir-wlever50/ You could paint it gold... They even include blueprint spec sheets on most everything, the one above for example: http://www.oppracing.com/images/cmsuploads/Brembo/OEM_Schematics/oppracing%2010-5053-53%20brembo.pdf so you can check to see piston diameters and select one with a smaller bore. They have been a great resource for me with all my reconfigurations, and one customization I haven't shared with the forum yet hehe... Link to comment Share on other sites More sharing options...
68C Posted March 28, 2014 Author Share Posted March 28, 2014 Thanks Skeeve, unfortunately doesn't match but it has shown me I need a 13mm piston for a single disc. Link to comment Share on other sites More sharing options...
sp838 Posted March 28, 2014 Share Posted March 28, 2014 If you need a 13mm mc, check out the link I posted above. Link to comment Share on other sites More sharing options...
68C Posted March 28, 2014 Author Share Posted March 28, 2014 Thanks SP838, that is a great lead, the PS13 for the TZR125. 125's are popular for learners in the UK so I should be able to get one and spray it gold. Link to comment Share on other sites More sharing options...
sp838 Posted March 28, 2014 Share Posted March 28, 2014 Weird that it doesn't exist in gold... I'm searching, will post if I find it. In the meatime, here's on in the UK on Ebay: http://www.ebay.com/itm/CAGIVA-MITO-125-FRONT-BRAKE-MASTER-CYLINDER-WITH-LEVER-1992-/221177222268?pt=UK_Motorcycle_Parts_13&hash=item337f30947c&vxp=mtr These mc's were also fitted on these bikes: Cagiva Mito 2 1992-1993Cagiva Mito Euro 2 2004Cagiva Mito EV 1994-2003Cagiva Mito EV 6 Marce 1999-2000 http://www.oppracing.com/product_display/30760-brembo-oe-front-brake-master-cylinder-ps13-black-without-reservoir-wlever50/ Good luck! Link to comment Share on other sites More sharing options...
68C Posted March 29, 2014 Author Share Posted March 29, 2014 THanks, I also found one here: http://www.ebay.co.uk/itm/351024612682?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT Your Ebay UK search result handy as it shows they are on small Cagivas as well. And that one is near my brother-in-law in Pinner. He has a 2.3 triumph converted to a trike with a trailer which I found very scary when I had a brief ride (drive?). Link to comment Share on other sites More sharing options...
docc Posted March 29, 2014 Share Posted March 29, 2014 . . . . I had a brief ride (drive?). A spin? A go? A "bit of sport?" Nudge-nudge-wink-wink . . . know what I mean- know what I mean? Link to comment Share on other sites More sharing options...
68C Posted March 29, 2014 Author Share Posted March 29, 2014 "Say no more," Link to comment Share on other sites More sharing options...
GuzziMoto Posted March 29, 2014 Share Posted March 29, 2014 A nods as good as a wink to a blind bat. Link to comment Share on other sites More sharing options...
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