stinger_ YZF r125 Posted December 12, 2009 Share Posted December 12, 2009 i have a yamaha yzf- r125.. i am looking at ways that will make the bike faster, i am getting a 192cc big bore kit and a letachy full race pipe just after new year. is this going to make alot of differance? will it affect the liabitly of the engine as well? Link to comment Share on other sites More sharing options...
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