manxmann3 Posted July 12, 2016 Report Share Posted July 12, 2016 Hi Got a 2005 Rev 3 250 needs new rear master cylinder The aprilia rs125s of that era had grimeca master cylinders that look identical with 40mm bolt centres Any reason why it shouldn't work if I fitted one There are brand new pattern ones on eBay for 35quid including reservoir and hose compared to 90 for a grimeca Thanks Quote Link to comment Share on other sites More sharing options...
manxmann3 Posted July 12, 2016 Author Report Share Posted July 12, 2016 https://www.ebay.co.uk/itm/112023555182 Quote Link to comment Share on other sites More sharing options...
petert Posted July 13, 2016 Report Share Posted July 13, 2016 No reason whatsoever, I did similar with my old Rev 3. Only used a Brembo one Quote Link to comment Share on other sites More sharing options...
smokey125 Posted July 13, 2016 Report Share Posted July 13, 2016 Any master cylinder will work with any caliper, it's only a simple hydraulic system. The thing to look for is the bore size of the master cylinder. Changing the bore size will change the power and feel of the system. Quote Link to comment Share on other sites More sharing options...
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