Talked to a local bike shop mechanic who said replacing this part for one with more teeth would do me better when climbing uphill and help prevent slipping….unfortunately he doesn't sell them but said that if I could buy one he'd install it for me. Can anyone tell me exactly what kind part this is/what to look for with specs would be preferred (I don't know much about bike anatomy and could use some troubleshooting)? I'm very new to cycling and have just a regular old single speed bike bought off of a private seller to get to work and back….please help
by merelymisguided