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Handbrake question
- Thread starter glastoveteran
- Start date
Lucy said:Mine's rubbish too! When i pull it up, 60% of the time the car rolls back a bit and i have to pull it up again even harder.
x2 My work carpark is in a bit of a slope and I'm now paranoid when I park up there in fear of finding my pride & joy intergrated into side of the office when I come back!
Am I correct to say that Z4 (and most cars with rear discs) use the rear brake pads to hold the rear discs when handbrake is applied?
My understanding of rear brakes is:
(1) For handbrake;
(2) For braking the rear wheels when DCT/DCC/ABS is activated.
Most normal braking is on front brakes only, rear brakes are never used.
My understanding of rear brakes is:
(1) For handbrake;
(2) For braking the rear wheels when DCT/DCC/ABS is activated.
Most normal braking is on front brakes only, rear brakes are never used.
ksher said:Am I correct to say that Z4 (and most cars with rear discs) use the rear brake pads to hold the rear discs when handbrake is applied?
My understanding of rear brakes is:
(1) For handbrake;
(2) For braking the rear wheels when DCT/DCC/ABS is activated.
Most normal braking is on front brakes only, rear brakes are never used.
Sorry but you couldn't be more wrong, the Z4 handbrake has cable operated brake shoes inisde the rear brake disc hubs, all road cars to the best of my knowledge have linked brake systems there is no independent system for front and back brakes so when you apply the brakes all 4 brakes are activated, there is arguably more force to the front on account that the Disc and calipers are bigger than those fitted to the rear and therefore exert more stopping power.
ksher - certainly some cars use the rear rotors to effect the handbrake operation. I spent ages finding them for my Jeep that now uses Rover rear calipers as with integral handbrake...
Only comment I woudl add to Richards response is that as a result of the basic physics of braking, weight transfer to the front of the car causes them to effect the majority of braking effort. Hence of course the front rotors are larger as the same size and pressure would just lock the rears and cause a skid.
Hope that makes sense?
Only comment I woudl add to Richards response is that as a result of the basic physics of braking, weight transfer to the front of the car causes them to effect the majority of braking effort. Hence of course the front rotors are larger as the same size and pressure would just lock the rears and cause a skid.
Hope that makes sense?