KTM 300 Piston choice

2008 KTM 300 piston seized today so need some advice on piston choice. So far got Wiseco at £180, Wossner at £135 and Vertex at £115. Any thoughts on which/alternative? Also Wiseco and Woosner are twin ring, vertex is single, much difference?

Cheers

I had mine from et james
ktm piston kit with all the gaskets and o rings and copper washers and small end £107

Twin ring for enduro engines.

Single ring for MX.

Whys that then?

Less stiction I think they call it for SX . Two rings helps to keep the compression to last longer I believe... :

dai 530 wrote:I had mine from et james
ktm piston kit with all the gaskets and o rings and copper washers and small end £107

yeah me to. top end rebuild kit   

Piston in the post from et james, cheers for that Dai. Any tips on running it in?

I just start mine and leave it run for 5mins then leave it cool down do the same again then ride it for about 2 hrs not reving it to hard and its ready for a good seeing too
some say to use cheep 2 stroke oil to run it in not to glase the bore
i have used a horning tool to deglaze the bore and it gives a even finish

The 300 lives, has an odd clunking noise, could be piston slap, could be paranoia! Will see when i run it in.

Mite be wise to take the TM the weekend.