Sumitomo 4 pot rotor question... need help

[adwolf```]

Does anyone know if I can use 26mm thick rotors on the Sumitomo 4pot calipers? Or do I have to use 30mm?

Slowly getting the bits for a brake upgrade on the 510.

 

Sorry if this has been discussed I can't find any information.

 

[Lockleaf]

I would imagine if you put a 2mm spacer behind each pad the caliper would never know the difference.  And i think you would have to push a 510 pretty seriously to make it need 30mm worth of brake fade resistance.

[adwolf```]

Thanks heaps didn't even consider that.

[iceman510]

You may not need the spacers.  You just have to monitor your pad wear and confirm you don't have so much piston travel when the pads are low that the piston is too far extended. 

 

You could test  this with spacers the thickness of the pad (or thickness + 2mm pad material which is what you are supposed to use a pad wear limit) backing plates and check piston travel when clamped .

 

 

[Icehouse]

We run those calipers on S12 V6 struts with z31 rotors on our enduro 510.  Not sure the thickness but I'm sure it''s less then 30mm I will measure tonight.  We've worn the pads down to metal and never had an issue.  

 

 

 

 

 

 

 

 

 

 

 

 

[iceman510]

Now that is getting value from your brake pads.  😆