OEM vs Wiesco Piston kit?

[Shift-MX]

I got a 1998 RM 125 and i should be getting the cylinder back from Mr.Gorr in like 2 weeks (hopefully), i went to the local shop today to order a top end kit. The guy at the counter has either an OEM replacment kit or Wiesco. I know most people go with Wiesco, but the guy at the counter said he'd give me a deal on the OEM replacment kit (somthing like $100 canadian not sure exactly). What should i go for? Thxs. Oh ya one more question, how do you guys recomend breaking the top end in? i wanna do it properly so i get the most life out of it. Thxs again.

 

[Joepro9]

i like wiesco but stock is good too. I do heat cycles to break in my bike. then I ride east at 1/4 trottle for 15 min, then at 1/2, 3/4, then a day at easy riding. Then i rip it up. ( i am very careful with the wiesco piston during break in)

 

[RM_guy]

Here's a good thread on the differences between cast (OEM) and forged (Weisco) pistons

http://dirtrider.net/forums3/showthread.php?s=&threadid=35945

 

[Shift-MX]

Alright, thxs for the info. Both pistons seem pretty equal, with there pros and cons. Thxs again.