4
votes
2answers
378 views

Why does the chain tension vary as pedals are turned?

I have a new single-speed bike (after purchase this year, it was unused in a garage for a few months), but as I turn the pedals, the tension in the chain varies noticeably. What should I check, ...
1
vote
3answers
747 views

Where can I find a 130 bcd single speed chainring with 58 or 60 teeth?

Where can I find a 130 bcd single speed chainring with 58 or 60 teeth? I am attempting to setup a goldsprints setup using a very large front ring and a small rear freewheel.