I've just been through about 20 cantis and, as you say, most springs are 17mm+ OD. However, I did find one which I measured at a smidjen under 16mm. I've just put it into a jar of acetic acid to clean all the crap off and will measure it again in the morning. Looks promising, but there is only one.
I've just been through about 20 cantis and, as you say, most springs are 17mm+ OD. However, I did find one which I measured at a smidjen under 16mm. I've just put it into a jar of acetic acid to clean all the crap off and will measure it again in the morning. Looks promising, but there is only one.