Rotors & Bells

[Error404]

Also reducing the pad contact and frictional area is not really ideal. It's all about friction and heat transfer.

The frictional area on the disc is almost identical between a 330mm disc with 55mm annulus and a 314mm disk with a 60mm annulus. Now I'll admit I'm not great with this stuff but my logic tells me tat assuming the pad width is the same the frictional area on each rotation will be the same? But the larger diameter disc is travelling at a higher velocity so for the same pedal effort more force acts on the disc through the smaller pad area and the higher velocity of the larger diameter rotor generates more friction and also more braking torque on the axle?
Its been along day but i need to write it down or I'll be up all night thinking about it

[Greg_S]

I have an ap setup with 330 x 32 discs, I have the original design at home if anyone interested? I also have a set of caliper carriers for the ap racing formula kit which uses the 330 x 28 discs for sale

[4WheelDrifter]

The frictional area on the disc is almost identical between a 330mm disc with 55mm annulus and a 314mm disk with a 60mm annulus. Now I'll admit I'm not great with this stuff but my logic tells me tat assuming the pad width is the same the frictional area on each rotation will be the same? But the larger diameter disc is travelling at a higher velocity so for the same pedal effort more force acts on the disc through the smaller pad area and the higher velocity of the larger diameter rotor generates more friction and also more braking torque on the axle?
Its been along day but i need to write it down or I'll be up all night thinking about it

That's the conclusion my own logic came to too, Alex. Hence why when I machined my caliper carriers, I made sure the pad sat right on the outside edge of the disk. I also makes it easier for changing pads later.

What is that?

I found that when a pad pops out and wedges itself between the caliper and disk, you can separate the caliper to get it out.
Although TBH it is better to keep an eye on your pad and disk wear. I happened to schedule a disk and pad change 45 miles too late.
I ended up having to do the job at 11pm in the road that entered a village. Luckily there was just enough room for the 3 cars that wanted to drive by while I worked on the car.

[andyg plym]

this reminds me,i will be putting my ap 4pots with brackets,bells etc up for sale very soon

[macspring]

What size discs ?

Thanks.