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The compression on this piston is:
The key difference between the Stage 1 and Stage 2 Power Upgrades is which battery you are using or going to use
Generally you should re-pack your silencer every 10–15 hours
Includes a black Titanium replacement nut
Eliminates the OE backfire screen by providing an open filter cage and special air filter that features a fire-retardant inner filter foam
DOHC Bore Up Kit (145cc) - Kitaco - CRF100 XR100 zs190 The compression on this pistonCylinder: Aluminum cylinder (Hard plating) Piston: Forging WPC + MOS2 processing (3R specification) Displacement: 145cc Compression: 11. 7: 1 Bore Diameter: 57 Stroke: 56. 5mm (Long stroke) ULTRA SE high camshaft Valves come assembled in head Fits all years XR100R and CRF100F High performance and high power!!!! Even more affordable. This is the ultimate engine tuning and DOHC kit for the 100cc vertical engine. The extremely compact DOHC 4 valve