A Boyesen RAD valve and Power Wing added more power
to an engine that is handicapped against 250 four-strokes.
Engine braking and weight are problems a 125 doesn’t have.
We still wanted more pucker power. Enter Moto-Master.
Gearing the YZ125 down a tooth is a must to maximize the
six-speed transmission. Renthal helped us make it happen.
Dubya provided bulletproof wheels, with D.I.D DirtStar rims
and thicker spokes. Oh, how sweet it is!
If you own a 125 two-stroke, do yourself a favor and invest
in a pipe and silencer. Pro Circuit made our bike sing.