Sparky
Joined: 08 Dec 2003
Posts: 19079
Location: PDX11/22/18 3:04 PM |
Tandem/crank project.
We sold the IBIS at a small profit after 4 seasons with it. Not the usual tandem story. ;)
Got a nice no name chromo tandem, same running gear as the IBIS w/Sugino Forged cranksets. Shifters Ergo Campy instead of Shimano.
Got a FFS Freewheel BB Schwinn for parts. This is a 70s drive system that the chainrings, cassette, and chain always move when the wheel is moving. Idea was you could shift not pedaling while and as long as you're moving.
Plan, replace the tandem main crankset with the 39/52 FFS setup. Use the 52 to time to the captain flipped to the drive side. No front DR, rear will be a mega range DR and Cassette. Probably just do a MTN trigger shifter rear only, and some Mary Bars. Will use some speed dial levers and full length Linear V brakes.
Our cranks will never be in phase, or seldom. But Stoker can stop pedaling while I spin into orbit. And with High BB and 170 cranks hoping this will work no issues. We don't exactly super bike lean in turns.
Will update and include pics.
Also planning to use a smaller chainring for timing up front so my cadence will be/always is much higher than Elaine approves, Plus I seldom stop pedaling, just ease off watts. Being the front and back will not be in phase, may as well take advantage thus.
Last edited by Sparky on 11/22/18 4:04 PM; edited 2 times in total
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