Last year I got a bike with a set of Zedtech 4's and was told that I need not worry about going Clyde unless I was 225 or over. I looked at 808's and 1080's this year for my tri bike. Ideally I would have gone with a combination. However the experience of those with 808's has been very positive while there have been some issues with the 1080's. I've had my 808's now for three races and I train on them too and have been very happy with them.
