August 2, 200917 yr Is it possible to change an 03 txt pro 125 into a 200 or even a 250,just by changing the barrell an piston?? Cheers Edited August 2, 200917 yr by dabomb
August 2, 200917 yr Think there is a conversion kit from Gasgas uk to take it to 225cc. New head, barrel and piston.
August 3, 200917 yr A GasGas dealer/mechanic told me today that 225 is the maximum (from 125.) Thinking about one for family member, in the future.
August 3, 200917 yr i was told that if you leave the inserts in it makes it too fierce, the power delivery is like an on off switch, it's a bit like that if you don't put a flywheel weight on as well, i'm sure there are other people on here that can give you the proper technical description, something to do with reducing the crank volume too much for the bigger piston or something like that
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