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Posted (edited)

Big bore domes are only required for 68mm bore and up, your standard domes will work fine.

The head is a pro design. Does this matter? Prodesign standard domes are 64mm to 66mm and BB are 66mm to 68.5mm.

Edited by skeet34
Posted

well, if you really want to know for sure, then just get out a caliper mic and measure inside the dome. if the edge of the squish is smaller than the bore, by .25mm or more, then you need big bores.

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