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Ships within 48 hours · Estimated delivery Sep 28 - Oct 3
Larger diameter than stock
** = Head Chamber area must be machined 4mm deeper to accept longer stroke crank
The connection size for a possible mounting of air filters is increased to 70 mm
1989 Kawasaki KX500
BL420MRU DRIVE CHAIN BLACK 420 X 120 90-18045K Larger diameter than stockMRU features RKs proprietary Ultra Thin Seal, U Rings, where the thickness of the seal is less than 50% of the most common O ring seal. This allows RK to design a Sealed Chain with the weight of a Non Sealed Chain. MRU will feature 4 times longer chain life than comparable non sealed 420 chains and will require less chain adjustments compared to non sealed 420 chains. Tensile Strength: 4,540 lbs Max CC Rating: 150cc Street, 150cc Off road Max
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