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ESR Stroker Crank Assembly +4mm
Get the most out of your engine with an ESR Stroker Crank! Stroking the cranklets the piston travel farther up and down the cylinder bore, resulting in a larger engine displacement, more torque, and more horsepower! ESR starts with a brand new OEM crank that gets disassembled, stroked, blueprinted, balanced, and truedwithin exact tolerances. Combine an ESR stroker crankwith our new F-1 piston and you'll end up with a powerful and reliable YFZ498 or a TRX505!
ESR can also stroke cranks to your specs from 4-7mm. We will only stroke new cranks. Call for more info 805-489-1999.
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