Disc Rotor Sizing Problems

[BretonM]

Hello all,
I would like to put some custom brake rotors on my bike.
On the same specification it says that the bike has a 6" brake rotor front and rear.
I have been trying to find 6" brake rotors all over the shop and nothing seems to even exist.
Is there a conversion to a similar size in millimetres as this is what they all seem to be set out in.
As I've stated before I am a rookie at these sorts of things, so any advice or help for future reference would be greatly appreciated.
Thanks.

 

[classic33]

Hello all,
I would like to put some custom brake rotors on my bike.
On the same specification it says that the bike has a 6" brake rotor front and rear.
I have been trying to find 6" brake rotors all over the shop and nothing seems to even exist.
Is there a conversion to a similar size in millimetres as this is what they all seem to be set out in.
As I've stated before I am a rookie at these sorts of things, so any advice or help for future reference would be greatly appreciated.
Thanks.

Price limit?
Check here for prices.

 

[BretonM]

Price limit?

I would like a rotor with some blue or gold anodisation on it.
Preferably under £40 for the pair.
Just the rotors themselves.
Thanks.

 

[classic33]

There's these http://www.chainreactioncycles.com/brake-spares/disc-brake-rotors

 

[BretonM]

There's these http://www.chainreactioncycles.com/brake-spares/disc-brake-rotors

Thanks a lot ... however I'm still confused about which size to get ... as I say the spec says a 6" rotor but in reference to mm I have no idea ??

 

[classic33]

You'd be looking at 152 - 153mm. It's actually just shy of 152.5mm is 6 inch, possibly why they've used the imperial measurement in the sizing.

If it says 6 inch rotor required, then any shop should know which size you mean. If they don't, keep your money in your pocket.

 

[BretonM]

You'd be looking at 152 - 153mm. It's actually just shy of 152.5mm is 6 inch, possibly why they've used the imperial measurement in the sizing.

If it says 6 inch rotor required, then any shop should know which size you mean. If they don't, keep your money in your pocket.

So if ordering online I should look for 152 or 153 mm Rotor ?

 

[classic33]

So if ordering online I should look for 152 or 153 mm Rotor ?

Stick with the 6 inch when searching & ordering. 152mm & 153mm aren't there, for bicycles.

 

[fossyant]

Are you sure it's 6" imperial..... Rotors come in 140, 150, 160,etc etc.

Measure the diameter with a ruler !

 

[BretonM]

You'd be looking at 152 - 153mm. It's actually just shy of 152.5mm is 6 inch, possibly why they've used the imperial measurement in the sizing.

If it says 6 inch rotor required, then any shop should know which size you mean. If they don't, keep your money in your pocket.

It's just that online the only sizes close enough are 140mm and 160mm.

 

[BretonM]

Are you sure it's 6" imperial..... Rotors come in 140, 150, 160,etc etc.

Measure the diameter with a ruler !

Yes I measured earlier, would 150mm fit because it's only 2mm out.

 

[fossyant]

150 is best, but can you post details of fork/ discs/callipers as most stuff is metric.

My 170/160's run a few mm in from the furthest edge, so going for the nearest would do the trick.

We are running totally blind here as we don't know the bike model or anything.

 

[BretonM]

150 is best, but can you post details of fork/ discs/callipers as most stuff is metric.

My 170/160's run a few mm in from the furthest edge, so going for the nearest would do the trick.

We are running totally blind here as we don't know the bike model or anything.

I apologise, the bike is a Norco Ryde 2009.
Thanks.

 

[BretonM]

150 is best, but can you post details of fork/ discs/callipers as most stuff is metric.

My 170/160's run a few mm in from the furthest edge, so going for the nearest would do the trick.

We are running totally blind here as we don't know the bike model or anything.

 

[fossyant]

A 2009 bike will be metric, 150's then