Maelochs

New bike is half a pound lighter but (according to reviews) has weak, heavy wheels.

Don't sell the Felt. Keep it for fast rides, and keep the Roubaix for long rides.

DrIsotope

But what about fast, long rides? Or even long, fast rides?

Cheddarpecker

Can you ride the Felt and see different results, or have you not tried it since upgrading?

RiPHRaPH

I think you didn't get the Felt from a friend...i think you have been riding it like you stole it..seriously....

'

I think you have adapted to the Felt...over some time you Will More than likely be better and faster and a nicer ride...without taxing your body over time.

You can't set a PR each time out. I'd be content to break the new bike in and enjoy how you don't get beat up as much..over time you are better off

gecho

My legs are very sensitive to changes in bike setup, making me experience what you are going through, sore legs, less power, and a HR 10-15 bpm higher. After about a week my legs do adjust to the change. It could be your old bike fit wasn't optimal, but your legs were used to it and maybe the new fit is better and you should just wait a while. Or maybe your old fit was better and you should match the fit of the new bike to the old one. I've had fits done at two local shops and both managed to screw them up, so I wouldn't automatically assume the new fit is correct.

If the old bike felt great and you still have the old bike, get detailed measurements from it and have that fit transferred to your new bike. Saddle height / setback is key, then position the bars to work with that. Too many times people do it the other way around, moving the saddle to accommodate for the position of the bars. The shop might have a special tool for transferring measurements which would simplify the process.

Saddle setback is the position of the nose relative to the bottom bracket, not the bars. It can be tricky to measure, I use a plumb bob and some tape on the top tube to measure setback.

Ilbiker

You can't set a PR each time out. I'd be content to break the new bike in and enjoy how you don't get beat up as much..over time you are better off.

^This. 6 minutes over 25 or 30 miles on a new bike after only 3 rides, I wouldn't let it bother me or try to over analyze it. I can go back and look at my Garmin files at runs over the same routes. Lots of things will affect my times - heat, cold, wind (hate it), how I feel etc, etc. Same now that I've started riding again. For my runs, I have a pace range for each type of run. As long as I'm in that range, it's all good. I don't have to hit the fastest pace each time. Same logic I've applied to riding. I'm in it for the long haul, so I just follow my plan and the gains will come.

unterhausen

you changed your fit, that never makes you go faster if the changes are random. Bar height makes a big difference, I would go back to the previous bar height if possible. And you can ride the Felt to see if you are slower on it now too, always possible