piston change

[Getoviq95]

HI gyus ,i opened my engine to clean a power valve ,and i decided to change a piston .My cylinder is size A ,but my piston is vertex size B-71.95 .My question is what size to be a new piston .If i put a next size 71.96 ,the clearance will be only 4/100mm ,which is too small .What is the size of A cylinder i think is 72.00mm ?And second question ,why wiseco pistons are only in one size ?
http://prikachi.com/images.php?images/189/8816189l.jpg

[Moto7man]

An "A piston" is smaller than a "B piston." Put in another B piston.

[Getoviq95]

How so my B piston(71.95mm) is smaller than B piston ?

[GGRider01]

I don't understand your question..

Though, I will say the same thing. Run a B piston.

Pro X makes A, B and C sizes. Here are the part numbers:

01.7300.A
01.7300.B
01.7300.C

[Moto7man]

Wossner A piston=72mm bore
Wossner B piston=72.01mm bore
Wossner C piston=72.02mm bore

[Getoviq95]

Originally Posted by Moto7man

Wossner A piston=72mm bore
Wossner B piston=72.01mm bore
Wossner C piston=72.02mm bore

http://www.ebay.co.uk/itm/Wossner-Pi...8AAOSwGIRXYBHU see this one wossner B is 71.95mm the same size like mine

[RBrider]

Your cylinder was probably worn a little and a previous owner installed the B piston to account for the wear. I'd put the Wossner B piston in it, if it were mine.

RB

[Getoviq95]

What do you think about the condition of my current piston is there still life in it or better not to risk and to put new one .Thank you !
]https://scontent-vie1-1.xx.fbcdn.net/v/t34.0-12/13565544_909027835910471_529089834_n.jpg?oh=e9731f 5619e72b697d11edfd54bb5fe1&oe=5779DE98
https://scontent-vie1-1.xx.fbcdn.net...c1&oe=5779F001
https://scontent-vie1-1.xx.fbcdn.net...19&oe=577A1120

[Getoviq95]

Originally Posted by Getoviq95

What do you think about the condition of my current piston is there still life in it or better not to risk and to put new one .Thank you !
https://scontent-vie1-1.xx.fbcdn.net/v/t34.0-12/13565580_909027855910469_1129324536_n.jpg?oh=b624b 0814db4acf90d3374e41ca8cac1&oe=5779F001[/url]
https://scontent-vie1-1.xx.fbcdn.net...19&oe=577A1120

https://scontent-vie1-1.xx.fbcdn.net...e1&oe=5779DE98