Glad I was of some use.
On the road, i've had the Xchal at, errr, motorway speeds

with no real issues and it'll quite happily plod along at 65-70 with no dramas at all. My only complaint would be that for longer distances, i.e an hr or more, the seat is a bit uncomfortable. But hey we can't have everything and it's an excuse for a quick stop and leg stretch. Nor is it an issue that really comes into play when getting down and dirty.