Forum menu
Disc Brake adapter ...
 

[Closed] Disc Brake adapter help

Posts: 0
Free Member
Topic starter
 
[#6319602]

So I think I'm being stupid but trying to find an adapter to fit these old forks and their tabs.

[img] [/img]

I have some Formula RX which are post mount but can't seem to find an adapter that fits as the tabs aren't threaded?

Trying to get a 160mm disc adapter.

Any help really appreciated as I'm scratching my head!

Thanks


 
Posted : 06/07/2014 12:41 pm
Posts: 12956
Free Member
 

IS to post mount adapter. Threads are on the adaptor you bolt through the mount on the fork.

And for a 160 up front you need a 0mm adaptor.


 
Posted : 06/07/2014 12:43 pm
Posts: 30656
Free Member
 

IS to Post Mount Adapter. Looks like below, just get the appropriate size.

[img] [/img]

Edit: Ah well, too slow.


 
Posted : 06/07/2014 12:44 pm
Posts: 12956
Free Member
 

If only I was this quick on my bike!


 
Posted : 06/07/2014 12:48 pm
Posts: 30656
Free Member
 

Edit: This should be ok.

http://www.chainreactioncycles.com/avid-mount-adaptor-front-is-160mm-bb5/rp-prod20304

On the phone so, can't be 100% sure, as CRC mobile site is a bit wonky. So hopefully someone can double check.


 
Posted : 06/07/2014 12:52 pm
Posts: 1617
Free Member
 

Any IS to post mount adapter should work.

This is the proper Formula (and very expensive) one: http://www.chainreactioncycles.com/formula-front-is-mount-adaptor/rp-prod64796?utm_source=Google&utm_medium=Shopping&utm_name=UnitedKingdom&gclid=CJe97v7QsL8CFVIPtAodQHoAaw&gclsrc=aw.ds

but generic ones like superstar or other brands like shimano should fit.


 
Posted : 06/07/2014 12:58 pm
Posts: 0
Free Member
Topic starter
 

Thanks guys. Still not getting how I attach. I have a superstar adapter but there are no threads in the tabs!!! Like I will need to get a longer bolt and a nut for the other side.??


 
Posted : 06/07/2014 1:49 pm
Posts: 12956
Free Member
 

Hmm that wont work* not enough gap between adapter and rotor.

So there are 4 holes in the adapter and only the post mount ones are threaded?

*i ghink


 
Posted : 06/07/2014 2:22 pm
Posts: 12956
Free Member
 

Thinking about it, is the adapter a post mount to IS rather than IS to post?


 
Posted : 06/07/2014 2:37 pm
Posts: 0
Free Member
Topic starter
 

The adapter I have is PM-IS. I still can't see that any adapter will fit. It's like I need a specific caliper?

These forks were off an old orange P7 so will try looking up the original specifications.


 
Posted : 06/07/2014 2:44 pm
Posts: 0
Free Member
Topic starter
 

All sorted I'm simply being an idiot! ๐Ÿ˜ณ ๐Ÿ˜ณ

Thanks guys. Was using wrong adapter!


 
Posted : 06/07/2014 3:09 pm