Stuck in gear and need expert advice? Ask Andy the Mechanic!
(a.k.a. Andy Wallen)
(Please, no old bike & antique questions)
E-mail your question to email@example.com, with the subject “ask the mechanic,” and tell us where you live.
Or, mail your question directly to Ask the Mechanic, c/o Wheelcraft Bicycles, 2187 National Road, Wheeling, WV, USA 26003. Andy will e-mail your answer to you and may post it afterward at www.bikexchange.com
(do not submit a question if you don’t want your Q&A posted in a future column).
Click here to look at our back issues to find answers to all kinds of bike fix-it questions.