Gava

iTrader: (10)

I know this might sound like a stupid question but which way round do you fit grooved discs?

pics would help

carl heath

Grooved goes on outside i would think mate,unless grooves are on both sides but i wouldnt know as never had a set,but you can see grooved disks through wheels so id say outside.

Allan

iTrader: (1)

As supplied by Godspeed

alcazar

iTrader: (2)

Look at the above. Imagine those discs whirling round on the sides shown.
The one on the left moves clockwise, the other anti-clockwise.

Now imagine the groove is a jet of water, or sparks from a catherine wheel: what would they do? They would bend as the grooves do.

That's how I remember it.

CharlySkunkWeed

iTrader: (7)

Think there is two options actually. One way prolongs disc life , the other prolongs pad life.

stu turbo 98

iTrader: (6)

Some manufacturers specify different ways,my front K sports go against the wheel direction and my rears from godspeed go with the wheel direction,both specified by the makers.

Gava

iTrader: (10)

i thought if it went against wheel direction it would be better braking, thats why i asked, does it really matter which way round they go?

Brun

It depends on the vanes inside the disk:

Turbotits

iTrader: (2)

As above. Groves can run either way. Its the central vanes that are inportant

Gava

iTrader: (10)

oh ok now i get it cheers