KOOTU Carbon Road Bike, Full Carbon Fiber Disc Brake Lightweight Racing Bicycle with Shimano 105 R7120 24 Speed Groupset and Hydraulic Disc Brake for Adult

I was riding a Walmart bike but once I began riding this new bike I'll never ride my old bike again. I had two problems with my new bike. 1. The internal cables were not straight from handlebar to frame, and it was difficult to install the handlebar. I simply twisted it at the last step to installing the handlebar. 2. The same area needed WD40 to allow for easy turning. Now I ride this bike as often and as long as I can. My legs have never become so strong. It's easy and fun exercise! The bike also arrived weeks earlier than scheduled.