Disc direction?

[kiwi cowboy]

Got two discs off trade me ages ago for a project but just realised they are both left hand discs.
They are off an rgv250 and the same as gsxr400's amongt others.

The question is can i get one rotor turned on the carrier to make it a right one or not.

[Laava]

Photo's?......................

[kiwi cowboy]

Photo's?......................

Same as these design

[MSTRS]

Left/right...what is the difference? I've never heard of discs that are directional...

[Owl]

Left/right...what is the difference? I've never heard of discs that are directional...

No difference.......that's why they're both left.:laugh:

Actually, it's the sweeping pattern of the rotor holes. They should sweep backward from bottom to top.......at least that's my understanding.

[willytheekid]

No difference.......that's why they're both left.:laugh:

Actually, it's the sweeping pattern of the rotor holes. They should sweep backward from bottom to top.......at least that's my understanding.

+1

Your quiet right Owl

[MSTRS]

No difference.......that's why they're both left.:laugh:

Actually, it's the sweeping pattern of the rotor holes. They should sweep backward from bottom to top.......at least that's my understanding.

Really? My understanding is that the holes simply reduce weight and provide better cooling...

[bogan]

Really? My understanding is that the holes simply reduce weight and provide better cooling...

I think the backwards from bottom to top is just done so it looks cooler, unlike some carriers (also sometimes part of the disc) with angled 'spokes' which must sweep from top to bottom. Hole placement won't be exerting force on the carrier or disc, but may make some difference to the stresses internal to the disc.

I'd flip it mainly so every observant fella doesn't give you shit about it :bleh:

[MSTRS]

I'd flip it mainly so every observant fella doesn't give you shit about it :bleh:

Are there really trainspotters in this country...?

[scumdog]

Left/right...what is the difference? I've never heard of discs that are directional...

The solid (non floating) discs I had on my Harley were visially directional - and marked 'L' and 'R' accordingly..

[Owl]

Really? My understanding is that the holes simply reduce weight and provide better cooling...

I'm sure that's true and the sweeping pattern is no doubt aesthetic, but it is what it is. Some rotors are identical copies (universal), while some are mirror images (L+R).

[kiwi cowboy]

No difference.......that's why they're both left.:laugh:

Actually, it's the sweeping pattern of the rotor holes. They should sweep backward from bottom to top.......at least that's my understanding.

I had been told the hole pattern is for better cooling.
Not sure if its true and what the ramifications are for running it backwards except the shit factor as has been mentioned.

[Owl]

You could always contact Steve at F1 Engineering in Hamilton. He does rotors, but I wouldn't imagine that work would be cheap?

[FJRider]

The solid (non floating) discs I had on my Harley were visially directional - and marked 'L' and 'R' accordingly..

I've heard the genuine Harley Davidson boots are also marked the same way ... :facepalm:

[kiwi cowboy]

You could always contact Steve at F1 Engineering in Hamilton. He does rotors, but I wouldn't imagine that work would be cheap?

Might do that.
Not sure on cost as they would be standard size rivets wouldnt they? { take old rivets out reverse disc new rivets in} simple:blink::facepalm:

[kiwi cowboy]

I've heard the genuine Harley Davidson boots are also marked the same way ... :facepalm:

As opposed to fj's were the riders boots are the brakes eh fred yabba dabba doooo:Punk:

[Grumph]

The direction of the drill pattern won't make a pinch of shit's difference...run them as is and save yourself the trouble and expense of trying to change one.
Buy me a beer at the BM with the $ saved...