I don't wear a backpack at the minute.
I was thinking the tyres might have been sending all the shock up through my hands (max pressure for tyres are 50psi and I'm running them at 40psi)
Think ill have to look into a pair of gloves
Thanks for the info. I'm holding off going off-road for the minute because if they are this sore on the road what will they be like after a spin off-road.