Hi guys. I'm upgrading my XR600 with a NX650 cylinder and a 10.25:1 compression WISECO piston. I'm also replacing the stock carburetor with the NX650 one to have smother throttle response. So i want to add an oil cooler to help maintain temps were they should be. I've seen those coolers on ebay, do you think they could work on the XR? [/url] http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=005&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=150052639247&rd=1&rd=1 The coolers measure around 7.5in x 3.15in. What do you think? I've also found some stock XR250 oil coolers (those round ones that go under the headlamp.) Do you think that those would be better? Thanks guys.