I figure the jump from 24 down to 34 is gonna be a jolt.... figured I'd carry say 15-20' of aluminum logging chain.. never know when a stump needs pullin'.

How to define a 'hill'.... mine to date is a .4 mile climb up I'll guestimate 75'.... the last .25 the steepest. I've got this one done several times with the 21... haven't tried the 14-34 on it. My main reason for the 34 is as a bailout.. got stopped one day on some short very steep "hills" where I had to mash to get over them from a near dead stop... not great for the knees. The 34 will allow me to climb most anything.. albeit used little. Walking the bike doesn't go with me.

Sans some electronic gadget.. is there a simple way to figure the height of said 'hill'? Map data somewhere on the net?