Having to use head tube for pivot exclusively so far, I can appreciate the compactness of the disk. Pivot placement seems conveniently good for minimum PSI. I am wondering if a seat swivel base can be used as a disk pivot, relatively inexpensive but maybe a bit heavier... https://www.google.com/search?q=Boat+Seat+Swivel&tbm=isch Vi >________________________________ > From: Jürgen Mages <jmages@xxxxxx> >To: Python Mailinglist <python@xxxxxxxxxxxxx> >Sent: Friday, June 15, 2012 5:41 PM >Subject: [python] Twist-Python > >Hello folks, > >some inventive stuff from Ukraine: > >http://hpv.com.ua/2012/04/twist-%D1%81-%D0%BF%D0%BE%D0%B4%D1%80%D0%BE%D0%B1%D0%BD%D0%BE%D1%81%D1%82%D1%8F%D0%BC%D0%B8-2/ >http://hpv.com.ua/2012/04/twist-python/ > >that disk-pivot is definitely new to me! > >Cheers, >Jürgen. > >============================================================ > >This is the Python Mailinglist > >//www.freelists.org/list/python > >Listmaster: Jurgen Mages jmages@xxxxxx > >To unsubscribe send an empty mail to python-request@xxxxxxxxxxxxx >with 'unsubscribe' in the subject field. > >============================================================ > > > >