Originally Posted by Zinn

A drain hole?
Dear Lennard,
Thanks for the entertaining and informative articles. You have probably addressed this question before: Should I drill a small drain holes in the bottom bracket shell to allow rainwater an easy exit? Today I replaced my bottom bracket (worked fine, different brand of cranks), only to find about 3 oz of water drain from the bottom bracket shell. The last time I rode in the rain was Christmas day (10 days ago). It rains here all winter through the end of June, therefore, I am bound to get wet again. I imagine that water and dissimilar alloys will lead to corrosion over time. Also, why bother with lightweight bikes and parts when you unknowingly carry 75 grams of water up a hill? What would you suggest? Will I find water in the forks as well?
Rob

Dear Rob,
Yes, drill the drain hole in the underside of your bottom bracket shell. You won't find water in a carbon fork, but in a welded fork you often will.
Lennard