hey guys, i ride in florida, lots of sand at times and i have a stock 2003 mc250, i was wondering should i get a flywheel wt. and if so, what size? also do you reccommend a 13t spocket? and last, my factory hebo handlebars have a 12mm outside opening so the barkbusters i bought wont fit the outside mounting screw since they are 14mm thick, i rather not change bars at this point ? (my stock gearing 12-48) just one more thing to add, i am a newbee rider thats mid fourtys, and usually rides around in the mid-top of first gear, trails are tight and i'm not to skilled. please let me me know what you think and does anyone have the used parts i've asked about, thanks for all your help!