Exhaust recommendations for 1980 Batavus Regency?

Looking to get a little speed boost any suggestions?

Re: Exhaust recommendations for 1980 Batavus Regency?

david koch /

Treats has a 28mm clamp on chamber that work great. You can cut 3 to 4'' of the head pipe before a loss of bottom end power. the reed mod helps. I bored my carb to 13.5mm on the reed side that made it 13.5/12mm and picked up more mid and top power. I have a reed and carb i can sell you i you want.

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