I just finished a 37 mile ride with many steep climbs in 95* heat in the high desert country of Oregon.  After the ride, I have never felt better.  The Silvio is the key.  It is an amazing bike and I am so pleased that I purchased it because without it I would not be riding now because of back and shoulder problems.
I can write this up in detail if you would like.  In any case, I wanted you to know how happy I am.
Thanks so very much to all of you Cruz bike folks.  I would be happy to help you in any way that I can.
Sincerely satisfied,
Blaine Ackley