Culture Always Tip Your Mountain Bike Mechanic [Cartoon] By Jeff Barber April 10, 2020 A 6-pack of beer can be an appropriate tip for your bike mechanic, but timing is everything. Share This: Tweet Jeff Barber Jeff co-founded Singletracks.com with his wife Leah (mudhunny) in 1999. Today he works out of Singletracks World HQ in Decatur, GA as the publisher. Subscribe! Enter your email address to receive our top stories via email each week.