I'm looking to get some very strong wheels to fit on my mtb/tourer bicycle. Strengthwise, I am thinking of Rigida Sputnik rims with 36 spokes handmade at a good builder. However, the rims are 630 grams alone. How much would this affect my riding compared to a normal, lighter rim? Are there other very strong alternatives?
I am also thinking of putting a lighter rim in the front end of my hardtail as this takes less beating. Will a light wheel and a heavy wheel work? How will this affect handling?

