Slipping uphill..

[OskarTennisChampion]

I found dropping my stem helped get more weight over the wheel.
Meant I could still stay seated to have weight over the rear as well to get traction.
I know what Meta Lon is saying about tyre pressures,but I have always stuck with taking the max psi and halving it.Or as close as.As example,my tyres have 65 max,but I run them at 32.
I feel that gives me a wide enough contact area to the ground,whilst giving me enough buoyancy not to rim or buckle the tyre at the side.
Not very technical I know,and I know people will have their own theories.
But it has worked for me for years

 

[Racheluk]

I find keeping your elbows bent downwards on steep sections keeps enough weight on the front.. and try and keep your weight low on the bike.. also change gear before you need to, rather than grinding too big a gear.. if you keep the rear wheel moving steadily rather than in bursts then you should hopefully be fine..