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RM100/KX 80/ KX 85/ KX 100 -> 112cc Big Bore Stroker kit
Fits KX 80, KX 85 or KX 100 1998-2015 . The kit includes: +2mm HotRods Stroker Crankshaft. Big Bore (Nikasil plated) cylinder 54.5mm bore. Cylinder head modified for the big bore piston and stroker crank . Powervalves machined for bigger bore. Wiseco Pro-lite 54.5mm piston, rings, pin and clips, top-end bearing and a top-end gasket set. The exhaust port gets enlarged and polished, the transfer ports get the rough casting flaws removed and finished with a glass beaded finish. Removing casting flaws and polishing the exhaust port will gain significant power in midrange and top-end without loosing any low end power. The bigger bore amd longer stroke adds power all through the powerband. The combustion chamber of the head gets polished also.


2014-2015


Total for the kit: $750.00 if you send us your old cylinder and head for the core charge, or $1450.00 and we can refund $700.00 if we get your old cylinder and head  with powervalves for the core charge.


1998-2013

Total for the kit: $750.00 if you send us your old cylinder and head for the core charge, or $950.00 and we can refund $200.00 if we get your old cylinder and head  with powervalves for the core charge.