The start had several issues, getting everything to work, 1/4 mile after start I forgot to completely close battery case so batteries fell out all over the road got that all cleared up then had to readjust left shoe cleat, may need to do it one more time, the rear derailleur may need to be readjusted, didn't like the sound it was making,,, it also could be the chain. My rear light went from flashing to solid somewhere after mid point. I tried to change it back while riding to blinking but nothing it wouldn't even turn off. I stopped to fix it but no luck. I had to do a total reset at home. The ride went well and once moving I was able to keep it moving on the nice roads. Upon measuring both bikes the Tarmac is 1/2" longer from saddle end to bar hoods which might be adding to my back pain, and that is about how much I feel I am over reaching, so I will replace stem with a shorter one that I have. A good night to ride!!!