parrotbee, I am not pedantic but one need to discriminate between
FR-64 and FR-64 S.''S'' standing for ''steel''. FR-64 , to be recognised
by round lateral balans, has aluminum ( arm) wands. The 231.5 pivot to spindle distance change original Stivenson geometry to Bearwald. The eff. length then become 246 mm. I ordered Mint
tractor for my FR-64 S despite the fact that I can adjust eff. length
with an (plastic!) caliper.
FR-64 and FR-64 S.''S'' standing for ''steel''. FR-64 , to be recognised
by round lateral balans, has aluminum ( arm) wands. The 231.5 pivot to spindle distance change original Stivenson geometry to Bearwald. The eff. length then become 246 mm. I ordered Mint
tractor for my FR-64 S despite the fact that I can adjust eff. length
with an (plastic!) caliper.