Standard Victa 125cc piston spec is 2.115" diameter at top ring land, 2.120" at bottom of skirt. Standard bore is 2.125".
Reboring these barrels was/is no problem at all. In fact changeover rebore kits are still available through the trade for the Model 1-4, and Model 5.
Cheers,
Gadge
"ODK Mods can explain it to you, but they can't understand it for you..."
"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."
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