Hi. I've been commuting by bike for the last 3 months. It's an old, borrowed cycle of my friend. I think it's time to buy something on my own as I got really hoooked on riding a bike. Since the last bike I've bought was a mountain bike a couple years ago I've decided to ask for your help before I make my mind.

I don't want pay more than 200 pounds at the moment, because I'm still a beginner. I've selected two bikes on Amazon but I can't really figure out which one is better or are they of the similar quality.

1. ECOSMO 700C New Fixed Gear Road Race Bicycle Bike- 700R08H: Amazon.co.uk: Sports & Outdoors

2. http://www.amazon.co.uk/Martello-Sin.../dp/B00X61UYLU

Are these good choices? Or should I aim for something else?

Also what frame size is the best for me if I'm 185 cm tall? I don't have the measurement of my leg at the moment cause I'm on a holiday but I'd say they are quite long.

Thank you for any help provided.