I want buy a new pair of wheels for my son's road bike. He uses 8 speed Tiagra shifters, will I be able to use an 8speed cassette on a 10 speed hub. The wheels I want to buy are Campy Khamsins. Like these http://www.tredz.co.uk/.Campagnolo-Khamsin-Pair-Road-Wheels_27175.htm
If one can't run it like that, could I use a 10 speed cassette and will it work with the 8 speed shifters, except for not shifting into the last 2 cogs?

