I agree BCRider, the BBB extender does look better and does allow for more stem attachment points. Although aesthetics are a factor, my main concern is that i don't want to worry about the extension failing. I bought this bike for on and off road touring and want it to be able to handle rough roads etc without twisting free or failing in some other way. Reviews seem to be mixed on the external clamp extenders (like the Delta one) - some people seem to have issues screwing it tightly to their existing stem. Just want an extension that's as good as a long steerer would be, I'm not entirely sure that's possible.