Disc brake query.

[videojetman]

I just bought a carbon fork off here.
The fork is the IS fitting am I right ?
Basically the disc calliper is for post mount as I understand.
So I found an adapter and I am suspecting I need a bigger disc.
The current disc is 160 mm so I think I am in need of a 180mm disc.
I might sound like a total nonce here but I just need a 2nd opinion.
Also does anyone have a spare 180mm disc they no longer need ?
Thanks in advance.
Jeff.

 

[legrandefromage]

smaller adapter will make it fit and if that is too small, you then pack it out with washers till it sits right

 

[02gf74]

Carbon fork is IS.
Rockshox fork is post.
Brake calliper is post.

Buy an IS fork to post adapter, available for 160, 185 and 205 mm rotors.

 

[videojetman]

Thanks for the replies.

 

[jimo746]

Re:

I wouldn't go bigger than 160mm disc on the front of those carbon forks.

A: check the manufacturers recommended max disc rotor size.

B: I can't really see the need for 180mm disc on a rigid fork??

 

[mattr]

Haven't seen a fork only rated to 160 for years.
The 3 or 4 rigid carbons I've had through my hands recently were all rated to 180 or 185.

The 17 stone bloke that I fitted the last set for will be grateful for 180s.

 

[mechanical_vandal]

Re:

Also looks like your 180mm adapter is upside down so make sure you fit the 160mm adapter the right way around.