;About my seatpost height mod - here's a challenge for the group To make the mod even better, when the seat post hits the stopper there would be something to alighn the seatpost so that the saddle is perfectly forward. You could do something like on the stock stem riser (a split pin engaging in a groove) to engage the seatpost with the stopper, but then you also need a way to stop the stopper rotating, perhaps by shaping the bottom of it to fit with the BB shell. A requirement of the mod is that the height must still be adjustable (not quickly adustable) for when you change cranks/saddle/rider/shoes etc.

Can anyone come up with a simpler solution than this that's a bit more DIY-friendly (doesn't envolve so much precision metal cutting)?