Hi Marlo,
Technically that is correct. Speaking strickly numbers: If the seat is at 20 degress and you want your eyes to be looking strainght ahead - then you have to bend your neck about 70 degrees. There are some tricks to minimize that. Get a seat that kind of curls up the last 12" (like a Thor, or the Cruzbike CF adj seat). then this gently curves your back upward (and your head forward) - there you don't have to bend your neck as far.
You can also get a foam wedge that does the same thing. The one we sell kind of mimics the S40 final upper back position so you only have to bend your neck about 50 degrees to be looking straight ahead.
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In reality you do not need to really be looking straight ahead either for a good view down the road - but you want to at least be around 10% degrees off of horizontal. The closer you can get to horizontail the more aero you will be however, but 10 is pretty good.
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Where do you live. I run the Cruzbike Museum and have all the models and all the different seats, headrests, etc on hand to try out what would work best for you. I am in Hiltion Head Island, SC - I have had dozens of people fly from all around the country and even other countries to check out the Museuma, learn to ride, and get a perfect fit on their Cruzbike. It is worth the time, effort, and expenses in the long run.
If you find you just can't get the V20C to work not matter what, I actually have a pretty hard to fine S30 that might work for you. It is a model they made a few of between the V20 and the S40. The lucky people that have them love them because it is like having the best of both worlds in one Cruzbike.
Feel free to give me a call if you would like to chat.
Larry
828-216-7860