Brake Adapters ?

[BretonM]

Hello all,

I decided upon the Hope Tech 3 E4 Brakes for my bike with 200mm Floating Rotors.

My bike is currently running a Fox 34 Performance 140mm Boost Fork with Shimano M506 Brakes and a 180mm Rotor up front.
With a 160mm Rotor in the rear.

I've decided upon the 200mm rotors as I'm pretty heavy and feel they'd suit my riding best !

The fork is Post Mount and the rear is an is mount, see pictures for the current adapters in use !

I would like to know what adapters I need to make the rotors fit and to have no issue with clearance.

( I haven't come here to be told that my decision to purchase the 200mm Rotor is incorrect or misguided but simply for advice on the solution to my 'problem' )

Thanks !!

 

[Drago]

I would check that your frame and forks are rated to handle the stresses of that size before splashing out.

Once that's established, most rotor sellers should be able to sell you a set to match. Do Hope themselves not sell them?

 

[iluvmybike]

You can always ring Hope up and ask them exactly what adapters - they are very helpful

 

[BretonM]

I would check that your frame and forks are rated to handle the stresses of that size before splashing out.

Once that's established, most rotor sellers should be able to sell you a set to match. Do Hope themselves not sell them?

Stresses ?

 

[BretonM]

You can always ring Hope up and ask them exactly what adapters - they are very helpful

I've heard that !

If I don't get an answer on here I'll give them a quick bell.

Thanks.

 

[Drago]

Aye, you're putting more leverage on the caliper mounts/bosses.

My guess - and its a guess only - is your forks may be OK but that's a big jump for the frame.

 

[BretonM]

Aye, you're putting more leverage on the caliper mounts/bosses.

My guess - and its a guess only - is your forks may be OK but that's a big jump for the frame.

What do you reckon then, a no go for the rear ?

Maybe I could get a 180mm instead ?

 

[fossyant]

Fox 34's will be fine. You'll need 40mm adapter on the front - you've already got a 20mm by the looks of it, so you'll need to swap that out.

You'll need a bigger IS to post adapter too - not sure of the size.

Most forks are set up for 160mm discs without the adapter.

 

[fossyant]

I'd go 180 at the rear at most - the adapter will be massive for 200mm

 

[BretonM]

Fox 34's will be fine. You'll need 40mm adapter on the front - you've already got a 20mm by the looks of it, so you'll need to swap that out.

You'll need a bigger IS to post adapter too - not sure of the size.

Most forks are set up for 160mm discs without the adapter.

So I won't be at risk damaging my fork using a 200mm Rotor up front ?

Will I have to get a Hope specific +40mm adapter or will a shimano one do the job ?

I'd go 180 at the rear at most - the adapter will be massive for 200mm

Honestly, I'm not to fussed if the adapter is huge or what it really looks like

Is there an adapter available that will do the trick ?

Thanks for the help, extremely valuable as usual !!

 

[fossyant]

Fox 34's are seriously beefy, and many folk run 200mm. Both existing adapters should have the size printed on them, so you'll just need to go up by 20mm or 40mm for the rear

Rear adapters - you'll need the 203 !!

http://www.chainreactioncycles.com/shimano-mount-adaptor-rear-post-to-is/rp-prod13749

 

[fossyant]

Front

http://www.chainreactioncycles.com/shimano-mount-adaptor-front-post-to-post/rp-prod13747

 

[BretonM]

Front

http://www.chainreactioncycles.com/shimano-mount-adaptor-front-post-to-post/rp-prod13747

So these two adapters will replace the current adapters ?

And also with my rotors being 200mm and the adapters made for 203mm will this have an effect on brake performance ?

Thanks !!

 

[BretonM]

Front

http://www.chainreactioncycles.com/shimano-mount-adaptor-front-post-to-post/rp-prod13747

So I just choose the 203mm adapter out of the two ?

Thanks.

 

[fossyant]

It shouldn't but I'll await an expert as you can't get 200mm in shimano, although another make of adapter might be 200mm (hope !!)