Dear Listers, I must mention the UK compayy Highpath Engineering who have been making very high quality oval (and round) rings for 20 years. See their products at http://www.highpath.co.uk/cycles/eggs/02.html. They also shorten cranks etc if required. I have no connection with them other than admiration for their product. Happy Pythoning, Dan Chambers <d.chambers@xxxxxxxxxxxxx> Quoting Ronald Hongsermeier <rwhongser@xxxxxx>: > Hi Daryl and listies, > > rotor also manufactures some kind of unround rings. They call them Q-rings. > > for those of you, who, like me, don't do spanish, go to the page Daryl > mentions below, click on the little red Englis button and well keep clicking. > The color choices for the website make reading a bit pinched... > > interesting products, > > ron > > > > -----Ursprüngliche Nachricht----- > > Von: "daryl bender" <darylbender@xxxxxxxxxxx> > > Gesendet: 02.07.08 23:23:24 > > An: <python@xxxxxxxxxxxxx> > > Betreff: [python] Re: Elliptical chainring > > "The way Giles described"? > > > > I have Rotor cranks on my street machine and it would be interesting > > to try these with an elliptical chain ring. Sort of a double whammy > > effect! > > > > http://www.rotorbike.com/ > > http://www.rotorbike.com/pdf/RotorSystemCrank.pdf > > > > > Date: Wed, 2 Jul 2008 08:05:22 +0200 > > > From: ralf.weigel@xxxxxxxxxx > > > To: python@xxxxxxxxxxxxx > > > Subject: [python] Re: Elliptical chainring > > > > > > Hi Ghislain, > > > > > > this looks very beautiful, a nice piece of work.... > > > > > > Tough I do not own (or be able to ride) a Phyton yet, I've got some > > > other recumbents. I would like to try the oval chainring approach > > as > > > well. Did you make them yourself? The way Giles described, drilling, > > > > > sawing and filing? Or was there a CNC milling machine involved? > > > > > > Ghislain Pillet schrieb: > > > > > > ---------snip---------- > > > > Thanks to Chainring Patterns from Giles Puckett > > > ---------snap---------- > > > > > > Cheers, > > > > > > Ralf > > > ============================================================ > > > > > > This is the Python Mailinglist > > > > > > //www.freelists.org/list/python > > > > > > Listmaster: Jürgen Mages jmages@xxxxxx > > > > > > To unsubscribe send an empty mail to > > > python-request@xxxxxxxxxxxxx > > > with 'unsubscribe' in the subject field. > > > > > > ============================================================ > > > > > > > > > Send a smile, make someone laugh, have some fun! Start now! > > > ============================================================ > > This is the Python Mailinglist > > //www.freelists.org/list/python > > Listmaster: Jürgen Mages jmages@xxxxxx > > To unsubscribe send an empty mail to > python-request@xxxxxxxxxxxxx > with 'unsubscribe' in the subject field. > > ============================================================ > > -- ------------------------------------------------- Visit Pipex Business: The homepage for UK Small Businesses Go to http://www.pipex.co.uk/business-services ============================================================ This is the Python Mailinglist //www.freelists.org/list/python Listmaster: Jürgen Mages jmages@xxxxxx To unsubscribe send an empty mail to python-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field. ============================================================