cee-b wrote:
Tubliss are a great option. dirtbiketest.com/product-tests/nuetech-tubliss-gen-2-0 (sorry, this hasn't worked as a link but just cut'n'paste it in your browser)
No problem with them overheating on the road as mousses can if not sufficiently lubed. Cheaper than mousses and, though they are not total proof against punctures, punctures can be plugged in minutes without removing wheels/tyres or the tyre can be ridden completely flat in order to complete the ride.
been running mousses for 5 years now never had one overheat only lubed up at tyre change time