Are you looking for untimate stopping power for your CRF150R / CR85 Minimoto?  Here is the MadLabs Radial Mount Big Brake Kit.
 
Fits: CRF150R/RB (All Years)
        CR85R (All Years)
        CR80R (Late model) 
 
This kit comes with the following parts:
1 x Aluminum front rotor spacers,
1 x Aluminum 90mm radial caliper mount, 
1 x Complete mounting hardware Set.
 
*Left side fork leg needs to be tapped with 10x1.25mm thread size!!
**The inner face of RC390 caliper needs to me modified so that it will clear from the rim!! (Shown in pictures)
 
This kit part with the following rotor option:
EBC OSX6314 250mm stainless steel rotor.  (Select "Kit only" then purchase from external sources)
Braketech Axis Cobra Supermoto 245mm Stainless Steel Brake Rotor. (Currently back order with No ETA!!)
Braketech Axis Iron Supermoto 245mm Brake Rotor.
 
For 90mm caliper we recommand KTM RC390 front caliper (Part# 90113015000) which you can purchase used from ebay.  Minor modification on caliper is needed in order to clear from the wheel.  
 
**Please note that this kit only fits 12" minimoto spoke wheels with OEM bolt pattern.