It's not that I didn't like it. I just didn't like it BETTER than the RB-021.
First, I didn't feel much of an improvement in ergonomics (I know this part is subjective, since I personally don't ride the tops too often and I like the drop in the RB-021). Also, the Aerobar felt more flexible, which I'm not a fan of. I feel more confident when I apply weight on the 021, especially when I get up off the saddle to pedal or skip stop or whatever. Felt a bit more conservative on the "bendier" Aerobar. I mean, this is not a HUGE difference I'm talking about. It's just a slightly noticeable thing, and it's probably also sort of subjective. But it did influence my decision to go back to the RB-021.
I'm not saying everyone should choose an RB-021 over the Aerobar. I already had the RB-021, so I was able to compare and decide that I still prefer it. For those looking for a decent bullhorn without spending too much, I'd still say the Aerobar is a good buy... especially at $13.
Last edited by NateRod; 11-28-10 at 10:34 AM.