I’m trying to tighten down the saddle properly, but the front bolt is hard to get leverage on to tighten evenly. The bike is a giant defy with the d fuse seatpost. It keeps creaking, and I feel like I can only tighten the back bolt down because it has a 5mm allen key.
by pete_hegseth
6 Comments
Adjust the front until you get the desired angle, then just tighten the rear fully,
You loosen the under seat bolt, finger tighten the front thumb screw, then tighten the bottom screw again. Yes if you have larger hands it sucks.
Put the short end of the hex key in the hole in the handle of a 6” shifter spanner and loosen/tighten the seat clamp bolts as needed.
Tightening the rear bolt will raise the nose, loosening it will lower it.
And vice versa, tightening the forward bolt will lower the nose, loosening it will raise it.
It makes sense if you think about it.
Adjust the bolts until you get the desired saddle angle, and then tighten them up equally. It’s not advisable to tighten one bolt fully and then tighten the other one.
The front has a small knob seen in the first picture, under the seat but on top of the clamps. You loosen the rear bolt from underneath, then either tighten or loosen that knob accordingly, and tighten the rear bolt back up. The knob won’t move unless the rear bolt is loosened first.
Literally the best example of some of the worst “let’s overengineer this shit” bike engineering out there.