Road Cycling - Bobby J's Crazy Chainrings

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.



PDA

View Full Version : Bobby J's Crazy Chainrings

Tom Pedale
08-19-04, 03:45 PM
Now that Bobby Julich's won the bronze medal in the Olympic TT with the Oxymetric chainrings (see thread below), would you ride these oddball rings if they really improve performance

http://www.velonews.com/tech/report/articles/6807.0.html

boze
08-19-04, 04:16 PM
please don't underline text that's not linked, it gets me all confused +)
Tom Pedale
08-19-04, 06:32 PM
please don't underline text that's not linked, it gets me all confused +)


Just cut and pasted the link and it came out underlined..there are other links in other threads that appear underlined..like this one they work...not sure why you're having trouble..

canili
08-19-04, 06:59 PM
OLN interviewed the inventor during the TDF (because Julich was using them), but he didnt speak english too well so i didnt get much out of it.
RobotSonic
08-19-04, 07:56 PM
seems like the next biopace
Pat
08-20-04, 01:56 AM
Yes and they improved biopace by bringing back round chain rings. Gosh a round wheel? Who would have thought it?

I think a flaw in ovalized designs is that they are cadence specific. The higher your cadence the closer you should be to round.
Tom Pedale
08-20-04, 01:42 PM
These are more weight friendly than "rotocranks". I dont have these but they borrow an idea from biopace chainrings. Weight is a critical ellement in efficient cycling products. They certainly look different but are simple in design than a complicated system of after thought

One thing for sure, we know these rings won't work on "fixies"...