Anyone make a 150sx big bore?

I am thinking of buying a new 150sx possibly next summer. I love small bores but think it would be fun to have something a little closer to the old 200sx. Does anyone make a bigbore for the 150? A 175sx would probably be the funnest bike ever!

The 150sx can be made in to a 200sx with oem parts, I agree a 175 would be an excellent displacement. A buddy has an older IT175 and it's a blast to ride. I have heard that KTM jugs aren't bore-able as they don't have much material between the cylinder walls and the cooling jackets.

Yep, at first I glazed over your post, but after thinking about it a 175sx would be a great bike...

If you find one let me know...

You can go up to 175 by swapping a 200 cylinder, head, PV assembly ang con rod. Search on ktmtalk. The guys who have done it say its the best engine ever!!

or you can use a 200 bore and cylinder with the standard bottom end

or you can use a 200 bore and cylinder with the standard bottom end

whats the displacement if you do that? what year 200 cyclinder?

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