its way better than stock, i was rebuilding my top end and figured id throw a cam in it. i noticed better throttle response and better power all through the RPMs. its totally worth your money
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this cam gave my bike a little more toppend but didnt notice any on the bottom i feel the product is over price for the power you get you are just paying for the name
Heavily Boosted bottom end and over-rev. no wear so far 80+ hours.
Used on a '06 crf 250r with PC head, valves, piston, crank, exhaust, and ignition.
expensive and exhaust lobe came off sent to pro circuit and was told dirt got into my engine and caused this. My air filter and oil is changed after every ride.
Note: All Pro Circuit Camshafts must be used with Pro Circuit Valve Springs. In addition, camshaft timing should be set by a certified mechanic to ensure proper function. Improper installation could result in engine failure.
right out of the description