Hi all,
I need help choosing my first bike mainly for city riding and dirt tracks.

SPORT 30 ? Orbea
Specialized Bicycle Components

On paper I would definitely go with the Specialized. It's got better deraileurs, and most importantly a lockout on the front shock. The lockout on the front shock will make a big difference when you're not on bumpy stuff, as its a lot more efficient.

X2. I agree on the Specialized. The tires on the Orbea look too off road oriented for my taste and the fork lock out is huge. The Specialized would be a better and faster road bike.

I love my specialized and do not regret the money I spent on it! You'll love it

I know a guy that has a Crosstrail XL, and he is an XL sized guy who has lost 60 lbs riding in about 8 months.
The Crosstrail seems to be one bulletproof machine. It comes with good tires, drivetrain, etc.
If you decide that you don't want it, its a ez sell.

Each have their own dealer network , go look for those dealerships. take a test ride in person.