Ok so its time for a top end. Bike still runs fine but its got some serious hours on it. Its time. So what the general concensious on piston brand? I know I know this is like what oil is best. Still I did some searching here and really didnt find much. So what are people using. Ive used Wiesco in the past with good results on many other bikes. But those were all Yamaha/hondas. This is my 1st KTM. Do they like something diff? I was eyeballing this (man are they expensive) http://www.ktmcyclehutt.com/ktm-parts/ktm-parts.php?sku=00050000009&title=KTM-Piston-Kit&year=&ktm-model=&category=Engine-Parts&fit=Piston-Kits&fitment=bigbikes probably really cant go wrong with OEM. Also piston size. I see them some manufactures list them as A,B and C. I know about the slight variations and why they do the abc thing. Is it stamped on the cylinder somewhere what mine is? Never looked before. Why do some offer them as abc and others dont? http://wossneronline.com/forged_pistons/index.php?main_page=product_info&cPath=50_65_100&products_id=564 If its oem then it is what it is. But if I can save a few $ and use a wossner or Wiesco and it will work just as well then Im all for it. Times are tough and ya gotta stretch them $$'s. ya know how it is. let the comments fly!