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Racer X Tested: 2013 YZ125


We return to our roots this month with a classic bike that has remained largely unchanged for the past eight years: the Yamaha YZ125. What it lacks in change it makes up for in dependable performance, and it’s also the perfect platform to build a screaming two-cycle rocket.


Pro Circuit Works pipe and Shorty silencer


Moto Tassinari V-Force reed block


Pro Circuit Valved and sprung suspension billet clutch cover


Rad Manufacturing Wheelsets, rotors, mounting hardware


Renthal Bars, grips, chain, sprockets, grip donuts, and covers


CV4 Radiator hoses and a cap


LeoVince Carbon fiber disk guards and chain guide


Dunlop MX51 front and rear tires


Works Connection Chain adjuster blocks, brake reservoir cap, oil fill plug, clutch lever assembly


Decal Works Graphics kit


Moto Seat Seat cover