MY REVIEW: Critical Cycles Harper Single Speed Fixed Gear Urban Commuter Bike. INCREDIBLE price on AMAZON: http://amzn.to/2tc2JNC (affiliate link). I LOVE this bike! I’ve used this bike to ride to and from work on almost daily. It’s held up like a champ. The only thing I’d recommend is getting smaller than the XL if you are under six feet tall. I’d also recommend keeping the tire pressure super high! Enjoy the bike! It’s got my full recommendation.