WIMPUS Posted March 23, 2016 Share Posted March 23, 2016 Hi, I was wondering, what is the minimum thickness of the front disc brakes on a Spitfire (1500) ? Mine are now 1,5 years old (i think) + Mintex M1144 pads, discs got a little lip (see pic of how much on one side (0,75mm)). Quote Link to comment Share on other sites More sharing options...
Martins Stag Posted March 24, 2016 Share Posted March 24, 2016 Wimpus are you saying that you front disks are 0.75 mm thick or the pad has 0.75 mm left on it? This seem very thin to me. Unfortunately I can't tell you what they should be as I have ventilated discs on my Spitfire. From dim and distant memory I would guess that they would be 8mm thickness.Martin Quote Link to comment Share on other sites More sharing options...
Jonny-Jimbo Posted March 24, 2016 Share Posted March 24, 2016 No, I think he means the groove worn into the disc by the pad is 0.75mm thick, or if you prefer, the 'lip' at the edge of the disc where the pad doesn't run, and so the disc isn't worn down. Quote Link to comment Share on other sites More sharing options...
stevegt6 Posted March 24, 2016 Share Posted March 24, 2016 I would have thought minimum rotor thickness would be dependent upon how hard one brakes - regardless if there is a 'legal' limit... If you drive fast and brake hard, then I would say the minimum thickness to be greater than for some-one who drives Miss Daisy, as more heat generated and more likely to warp...Are the originals about 8mm thick?? If so, you have roughly 6.5mm thick rotors, so few miles left in them yet Quote Link to comment Share on other sites More sharing options...
JohnD Posted March 24, 2016 Share Posted March 24, 2016 JJ, you have PMJOhn Quote Link to comment Share on other sites More sharing options...
WIMPUS Posted March 24, 2016 Author Share Posted March 24, 2016 Quoted from Jonny-Jimbo No, I think he means the groove worn into the disc by the pad is 0.75mm thick, or if you prefer, the 'lip' at the edge of the disc where the pad doesn't run, and so the disc isn't worn down. You are spot on what i mean ! Quote Link to comment Share on other sites More sharing options...
WIMPUS Posted March 24, 2016 Author Share Posted March 24, 2016 Quoted from stevegt6 I would have thought minimum rotor thickness would be dependent upon how hard one brakes - regardless if there is a 'legal' limit... If you drive fast and brake hard, then I would say the minimum thickness to be greater than for some-one who drives Miss Daisy, as more heat generated and more likely to warp...Are the originals about 8mm thick?? If so, you have roughly 6.5mm thick rotors, so few miles left in them yet The original discs are 9,5mm it seems (via the triumph exp forum).and seems the min thickness is 8mm.. so... Quote Link to comment Share on other sites More sharing options...
Jonny-Jimbo Posted March 25, 2016 Share Posted March 25, 2016 Which, if your grooves are equal, will mean your discs should be changed... Quote Link to comment Share on other sites More sharing options...
piman Posted March 26, 2016 Share Posted March 26, 2016 Hello Wim, measure the disc not the lip, the outer rim gets very rusty and could give you a false reading.Alec Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted March 26, 2016 Share Posted March 26, 2016 Quoted from piman Hello Wim, measure the disc not the lip, the outer rim gets very rusty and could give you a false reading.Alec ^^^^ This!Your discs will not be worn out after one (or part of one set) of M1144s. Mine (OK, thicker Vitesse ones) are still good after eating one set of M1144s and 2/3 set of the harder DS2500.Nick Quote Link to comment Share on other sites More sharing options...
.thumb.jpeg.b15b81ef10abeea1c3039ae03c4a9f3a.jpeg)
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.