Hi there.

It's time to replace my old hybrid mountain bike that I use for mostly city commuting.

Today when I was test riding a couple of bikes - I couldn't decide which format I liked better.

The models I was test riding were Cannondale Quick CX.

The bike I am currently going to be replacing is a Cannondale F800 with a Lefty Jake. Its frame size is a large with a longer stem to give me a bit of extension when I ride.

I took out a bike with a large frame and stock stem - which rode nicely - but I felt I was too upright. This of course could be corrected with a longer stem.

The second bike I took out was an XL frame with stock stem. The extension felt about right.

Is there a benefit to going with an extra large frame? Or should I stick to a large frame and get a longer stem?

I'm 5' 11" ...

Thanks

SparkyCanada