matt-northey wrote:you may find disc will be to powerful and course lock ups
An urban MYTH I'm afraid.....disc brakes DO NOT have self servo action like drums and certainly are not any more powerful by design. You will also find that the hand brake 'with discs' is very poor compaired to drums.
However, there are two real advantages:
1) The open design of disc brakes means they cool better and so are less prone to brake fade when worked very hard.
BUT
2) The main reason that manufacturers have swapped to discs all round is that most vehicles are now fitted with ABS and some sort of stability control system, these innovations simply don't work in conjunction with older drum brake design. Thats the real reason and not that they are inherently better or more powerful.
Spread the word and not the myth!
Martin