Valve Cover Grom welding is not necessary in

welding is not necessary in order to install- only modification necessary is a 10mm hole drilled into the frame

you're sure to be the coolest kid on the block

the mouth has a less-than-ideal opening that causes a great amount of turbulence when air hits it like a wall

or want to free up some HP

Valve Cover Grom welding is not necessary inFits all years CRF110 Can be modified to fit 4v heads by request in notes during checkout If you have a built CRF110 and you're having trouble with engine temps, crank case pressure, or want to free up some HP, this is your solution! The Avail Motorsports Valve Cover includes a 3 8ths breather that can eliminate built up crank case pressure by providing a vent directly from the head, which can also reduce engine temps by several degrees and actually