I was talking with a like minded cyclist/mechanic tonight and it reminded me about a component that I really like. Paul machines his Thumbies to use bar end shifters as thumbshifters. Using new Dura-Ace shifters you can have simple 9 or 10 speed shifters and the option of friction shifting if anything ever gets messed up while away from home. These are great for commuter bikes and other bikes that have flat (non drop) handlebars.
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