I put an Avon Cobra 180/70/16 on the rear on Friday and headed of to the Anzac rally at Tahora [just past Whangmomona} on Saturday, wow, what a difference it has made, heading along the Wiremu road it was noticeable instantly, cruising along there at 120 - 150s was so much better not having to crank it over to get round the bends it just turned in so nice, on to the Forgotten World Hwy and it felt even better as I was getting used to it. The 180 has made a huge difference on these tight roads, will have to wait and see how long it lives for, my last 200 Avon did 8500 ks and could have been pushed to 9500 at a pinch, Well worth trying the 180. Thanks for the post.