[topcat]

What are the relative gains of low rolling resistance (LRR) tyres versus over-inflation of standard tyres?

i.e. is it really worth the extra cost of LRR tyres, or will high PSI in standard tyres do the same thing?

The thing is, my usual Uniroyal Rainsport 2 tyres are great in every other respect (especially wet stopping) but they are only average on rolling resistance. If I pump them up hard, does that make them as good at rolling as LRR tyres???

It looks like LRR tyres are lacking in other (important) areas (like grip!), as always there are many trade-offs going on.