First road bike

I have been using a relatively cheap hybrid for the past couple years and I'm looking to upgrade.

I've been riding on roads about 75mi per week, though will likely increase.

My budget is reasonably flexible, I just want to make sure that I am getting good value.

Here are some things I've come up with, though any other are welcome.

Used - not really sure what to look/look out for, but this seemed reasonable, though older:

* $680 [GT Pro Series](https://norfolk.craigslist.org/bik/d/chesapeake-gt-pro-series-road-bike/6897307721.html)

Some assembly required - I haven't done anything like this before, but I could probably figure it out:

* $1050 [Diamondback Century 3 (2018)](https://www.diamondback.com/road-bikes/endurance/century-3-d41)

* $1360 [Diamondback Century 3](https://www.diamondback.com/road-bikes/endurance/century-3-d42)

* $900 [Motobecane Gran Premio Elite](http://www.bikesdirect.com/products/motobecane/gran_premio_elite.htm)

* $1400 [Motobecane Century PRO Disc](http://www.bikesdirect.com/products/motobecane/disc-brake-roadbikes/centurypro-discbrake-roadbike-xx.htm)

From LBS:

* $1320 [Cannondale CAAD Optimo 105](https://www.contebikes.com/product/cannondale-caad-optimo-105-345716-1.htm)

* $1350 [Specialized Allez Elite](https://www.contebikes.com/product/specialized-allez-elite-356267-1.htm)

* $1940 [Giant TCR Advanced 1 Disc - KOM](https://www.contebikes.com/product/giant-tcr-advanced-1-disc-kom-306769-1.htm)

The TCR is probably more than I'd want to spend, but seems to have a lot of good things going for it and is on a reasonable sale.