I currently have an 09 LTZ400 with a Dura blue axle and ASR +2+1 a-arms that I race MX with. I'm thinking about upgrading to an LTR for next race season and have been shopping the net like a fiend trying to find one. Most of the LTRs in my price range have the stock a-arms and axles. My question is, how much punishment and abuse can the stock axle and a-arms on an LTR take for MX racing? Most of the race ready quads for sale on craigslist with the upgraded suspension components run about $4000. From what I've read about the LTR, its basically race ready out of the box with a few add-on accessories. Thanks for everyone's input.