i'd buy that A1 in a f**king heartbeat! the A1 frame is nothing shy of bombproof (look up neil tunniclife on youtube, i beleive he did unforgivable things to them) the rest of the spec is brilliant too, notably the pro2 hub in the rear (by far the best free hub going for the money), i could go on bumming that bike in this post, but if you search it enough you'll realise it's a solid bike to buy, and it'll take an absolute mullering which you will throw at it the other bike you linked, is a bit lighter + shit, but screw that, longevity any day hope that helps