Mono Veloce

This is the drive train of one of my bikes. This one gets me to work almost every day, 9.5 miles each way, rain or shine, in little over 35 mins. it is a single speed as it has only one gear, so hills, flat, or downhill, you have to use it!

Yesterday i replaced the freewheel (small cog at back) and in the process lost an axel bearing. As a result i couldn't align the wheel properly. later in the evening i found the bearing and replaced in the kitchen. I left the upturned bike till this morning, and took this shot when i got up to make porridge!