Originally Posted by the sci guy

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I plan to strip it all down to the frame and build it back with everything new; BB, headset, groupset...everything. For the major stuff, I'm planning on going with 105 for FD/RD/crank/cassette/brifters. The BB is simple enough to match the crank, but I'm wondering about the headset. It's before the integrated threadless headset time, and I keep coming across the term "Aheadset" - can't tell if that's a brand or a style. Any insight there?