Originally Posted by
ascherer
Looking good! What's the rest of the drivetrain?
All in all that gives me a nice and wide
618% range (
20.9-129 gear inches) with plenty of steps in between.
I opted for 9-speed instead of a 10/11-speed setup because the TA chainrings are likely to have too much room between the rings for the narrower 10+ speed chains. And even top of the line 9-speed parts are fairly affordable right now.
The only thing I still need to do is replace the front wheel with a similar dynohub wheel and measure the weight. It should offer a decent weight saving over the Weinmann concave rims that were on there.
(
link to gear calculator)
More pics in
Batavus Randonneur GL project thread.