Had a fantastic day out at Kirton Offroad centre with my son on my 550 cforce.Its the first time I've used 4x4 on her,and I must say she pulls like a train in deep mud.She climbed the hills with ease,and coming down them on engine brake was fantastic,no slipping or over running.Would of like to say that it's a very capable quad for the money I paid for it.Have posted pics of day out,safe riding lads,cheers!