This will do it... Shimano Di2

[Jim Bremner]

The Browning Automatic Bicycle Transmission

I got to ride this back in 1988 or '89. Plus I owned one for a few years. The one I owned was N.O.S amd It's @ Richards Cyclery in Garden Grove CA. ( the bottom Bracket is on a shelf in my garage)

[Porsche-O-Phile]

Originally Posted by cantdrv55

Too bad Shleck didn't have this during the TdF.

LOL!

He could've offset it with better doping though. Just take whatever Contador was using.

[Racerbvd]

Originally Posted by Jim Bremner

The Browning Automatic Bicycle Transmission

I got to ride this back in 1988 or '89. Plus I owned one for a few years. The one I owned was N.O.S amd It's @ Richards Cyclery in Garden Grove CA. ( the bottom Bracket is on a shelf in my garage)

I remember those, they offered a BMX version too..