Will I be able to shift if I am using toeclips and straps?
your heel passes by the cap over the center of the crank arm thru every power stroke
you shift by tapping that button, located there.
they have an aluminum piece, held down by where the pedal threads in
that increases the target area..
it pushes the button when you tap on it in any part of the pedal stroke.
And can you use any kind of chainring with it, or does it use some kind of proprietary chain ring.
I can only find them with a maximum chainring of 40t, which may be a bit small for the Tikit.
the 110 bolt circle of the spider is standard, but to clear the gear housing a little metal is shaved off.
you can do that with a file.
How does it feel? Any kind of extra drag with the speed drive engaged?
Chainring turns faster than the crank arms,
The air resistance as a result of going faster will be more of an issue.