Re: back on a bacchetta fitting help
☄ Helpfulby Doc Dan 2018/01/17 08:28:25
To measure my seat angle I set a long straightedge against the underside of the seat. I measure that incline with a phone app. (First check the floor is level.)
Is your seat too small? See how well you fit on the seat without the 2" pad. A thick pad can conceal a bad fit. You should not feel compressed between the bottom and top of the seat. I'm about 6'1". I sort of fit on a large Bacchetta seat with the stock pad, but with a Ventisit pad it is clear the seat is too small for me. I've ended up with an XL seat from Bent Up (Dana Lieberman) and an Adem headrest.
Dropping the seat angle can take weight off your butt, as you've discovered. Sliding the seat forward a little can also do that if it helps keep you pushed back so your shoulders brace against the seat back. (The seat pad plays a role here; it is easy to slide back on a Ventisit.)
My seat angle is around 28°. I figure that once your bent knees rise as high as your shoulders you're not gaining much aero advantage by dropping the seat any more. Being higher gives a better view of the road (Schlitter J-bars help a lot, too). A personal factor is my glasses have progressive lenses, so lowering the seat tilts my head back and I'm looking through the near-distance part of the lenses -- not helpful.
I rode a Euromesh seat for many years. I briefly rode one again recently and was shocked at how ill-fitting it was compared to my carbon seat.