Originally Posted by slvoid
I can probably design you a mechanism that uses a freewheel hooked up to 1 gear and a solid drive shaft hooked up to another cog and a derailleur that locks itself in 1 gear and is free in another so you can shift between freewheeling and fixie... but... no it's not currently possible.
What I think would be sweet is a lockable freewheel bearing... you'd have some kind of trigger lever and when you hit it, *blam*, freewheel bearing locks up and you're riding a fixie. Then flip the trigger back and you can coast again. This would be nice for my commute, where I want to be riding fixie except on the downhills.
I'm probably asking for a lawsuit
