rear brake discs

[bobwars]

hello people just a quick ? should rear brake discs be the same width as the front discs a friend of mine who knows a bit says it's unusual that a sports cars (172)rear discs are so thin.also dangerous.i think there standard but not sure.its due a service so maybe i need to have this sorted cheers.????????

 

[MRBILLYUK]

Rear discs are 8mm new on 1*2's iirc and 7mm minimum thickness .

 

[bobwars]

cheers for that so they are supposed to be thinner than the front discs.as my front discs are twice the thickness???

 

[MRBILLYUK]

Yep , rears are only very thin . Fronts are vented 24mm new , 21.8mm minimum thickness .

 

[bobwars]

thanks again.

 

[ginna]

most makes of cars usually have thin rear disc's as they dont really brake on them, unless you go high performance cars.

 

[Martin_172]

yep much thinner on the rear as they are solid disks, no need for vented rear disks on the 172/182, or most small front wheel drive cars for that matter