You need to take the crank off regularly and apply grease.
Wat
Not sure about square taper in general but Sugino seems to have a proprietary axle design. That may be one reason why the crank would fail when used with a BB other than the Suginos https://www.suginoltd.co.jp/us/info/20160206001.html
Wat
Not sure about square taper in general but Sugino seems to have a proprietary axle design. That may be one reason why the crank would fail when used with a BB other than the Suginos
https://www.suginoltd.co.jp/us/info/20160206001.html