Motoxparts one of NZ's largest importers we supply to trade and now direct to the public all online over 2000 pages all at your finger tips have a look...

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For details how to buy from Motoxparts click on "About This Store" bottom right of this listing below the MXP logo, you will be taken to a page with all details
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View our large range at Motoxparts warehouse/shop, Beach Haven, Auckland between 9-5 Mon-Fri.

In stock crf150/250/450 rmz250/450 kxf450 kxf250 yzf/wr426 yzf/wr250 yzf/wr 450 KTM250 Listing is for crf250R/X 04-09 stage 3 kit

This kit is ultimate upgrade kit.
Engine builder seeking ultimate performance and longevity from there engine - get rid of those poor made genuine valves and springs that course so many problem's and fit a forged piston kit to make that side 3 times stronger than the Honda cast piston

PARTS EXCEED GENUINE
Faction MX valves/spring used buy the fast racers in the world like James Stewart.

This engine kit will make the engine way more reliable, less valve adjustments no worry about broken engine valves. Kit comes with Faction MX - 2 one piece stainless steel intake valves, 2 high performance springs. Full top end gasket set head, base gasket, valve stem seals, and all other gaskets needed. Wossner High quality forged pro pistons made in Germany are largely constructed of 4032 (T6) Alloy. Moly coated skirt to aid lubrication keep piston noise to minimum. Each set is provided with matched piston rings and diamond like coating (DLC) gudgeon pins used in F1 racing.

Wossner forged pro series coated skirt double braced piston, piston pin, pro seal rings, set of hardened steel cur-clips. Wossner piston are 3 times stronger than the ome piston, 2 stainless steel 21-4N one piece nitrided high flow inlet valves, 2 performance silicon chrome valve springs. Complete top gasket: steel head gasket, base gasket and a set of valve stem seals