Originally Posted by
steelbikeguy
I'm not sure that a flex wrench is required, but it might be handy.
I've been using a 12 point combination wrench, and can't recall any large amount of effort or frustration.
Steve in Peoria
You don't even need that long a wrench. Just grease the threads of both bolts and then use your fingers to turn the front bolt for tilt adjustment and the wrench on the rear bolt to secure the saddle in place.