On a road bike, once you’ve chosen a proper
frame size for your build, or as close as you can get in a production bike, the saddle
fore and aft adjustment is really important in that you need to get your knees properly
over the pedal when you’re set up on the bike and also be able to have the ischial tuberosity
of your hips properly centered on this part of the seat that’s going to support them the
best. So again, you’ve got two or three centimeters of adjustment back and forth through the saddle.
You also have a couple of different saddle or seat post designs to choose from. This
is a set back seat post, you can get seat posts with extra set back if you need it or
what they call straight up seat posts where this clamping mechanism is directly over the
middle of this post and that effectively brings the whole seat forward, which is another way
of equipping your bike with a steeper seat tube angle. Seat tube angle is very important
in terms of fitting a bike depending if you’ve got long femurs or long tibias or even your
foot length and never mind issues of flexibility. So, again, road bikes come in a lot of different
sizes and you’ve got a lot of adjustments to make to really get it dialed in. Lucky
for you there is a lot of stuff to help you adjust the bike properly.