Hope Disc rotor size for M4 question

[DeletedUser006]

Just a quick question, I have a Hope M4 up front and its running a huge 203 rotor which is far too grabby, I have checked on hope's website and it seems that 183 is the smallest. Could I not fit a 160 ? Caliper pictured below, its an IS to post mount.

 

[Enid_Puceflange]

Cant see why you couldnt run a 160 with a smaller caliper mount/adaptor.
Just so happens i would be looking to do the opposite and go up to a 203 from my 160. let me know how you get on
Im not running post mount though .

Gc

 

[Andy B]

I suspect that the uppermost piston casing will foul the fork lower or disc mount if you tried a 160.

180 up front works well & gives good power without being OTT

 

[DeletedUser006]

Cheers Guys, The 160 option is not available on the hope site for M4 so would guess the caliper is different at 160 size.