Piston ?
- Thread starter Brian VT
- Start date
blitz11
Silver Level Site Supporter
Just out of curiosity, why not Wiseco? Not to knock you, but maybe you know something I don't.
We made fun of Wiseco in the 1970's, but that was unfounded. Never had a problem with them. I run them in my de300 and my daughter's ktm 200 (sorry), and they seem fine.
Thanks.
blitz
We made fun of Wiseco in the 1970's, but that was unfounded. Never had a problem with them. I run them in my de300 and my daughter's ktm 200 (sorry), and they seem fine.
Thanks.
blitz
My buddy, that has owned a shop for 30 yrs., said the Wiseco (forged) would probably be fine but I should be careful to warm the bike up well before every ride. He also thought that, since they only offer 1 size, I might could get a more appropriately sized OEM-type (cast) piston for my cylinder (which may have worn to a C ?). I think the one that I've had in there for 3 years is a Vertex.
skid jackson
New member
I got a wiseco for my 06 300 with about 70 hours on it. piston was too big .. not enough clearance for when it heated up. I called wiseco and they said it was the only piston they made and it should work even on a new jug ... sure as hell did not work on mine. Took piston and jug to two different engine builders, both said not to run it as clearance was not enough for when it warmed up.
btw vertex is owned by wiseco ..or vice versa
btw vertex is owned by wiseco ..or vice versa
2 strokes 4 life
New member
You should buy the OEM made pistons. They are really well made (over 100+ hours of hard ridding on my bike) and come in upper sizes. As much un-lucky misshaps i have had with Gofasters.com they got em in stock. Otherwise a Gasgas dealer can get them in for you.
I've always got all my stuff from GoFasters and they sent me a Wiseco. Then my buddy gave me the info I mentioned in my original post. Hall's only has Wiseco too. Ron Brundidge has none.
Who has 'em ?!!!!
2 strokes 4 life
New member
Try Dave Fair at Gasgaspacific.com
GMP
Active member
From what I have measured on several bikes, the clearance is fine for a size up.
The piston must be a Vertex of maybe an Athena, both coated cast pistons.
Why would you want a single ring piston? That would be a step backwards for a low reving torque monster like the 300. You loose compression and life goes down as well. I'd prefer a dual ring piston for the GG 125 thats ridden in the woods.
The piston must be a Vertex of maybe an Athena, both coated cast pistons.
Why would you want a single ring piston? That would be a step backwards for a low reving torque monster like the 300. You loose compression and life goes down as well. I'd prefer a dual ring piston for the GG 125 thats ridden in the woods.
2 strokes 4 life
New member
More power but at cost. You will have to replace rings much sooner. It only makes the bike rev-gaster and loose bottom end. Might be alright on the 250 MX bike but not a Enduro bike.
Sounds like you got a vertex. Send it back and tell them you need a C size piston for free shipping both the pistons. They bring in those Vertex and Wiesco because they are cheap. Just like putting on a FMF pipe instead of a GG pipe. Tell them to eat that cost.
Sounds like you got a vertex. Send it back and tell them you need a C size piston for free shipping both the pistons. They bring in those Vertex and Wiesco because they are cheap. Just like putting on a FMF pipe instead of a GG pipe. Tell them to eat that cost.
I told him I had a B cylinder. Apparently they only have size A.
I've been calling around and all I can find is A.
I guess I'm stuck with the A and I'll have to get my jug rechromed to size or just run it as is.
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