Tread Brake Hand Truck
frame  height:  B13 is 3” taller than our B1 standard frame            
static handle height: 52 1/2"
handle extension height: 63"
balanced handle height for 21” tall 100# load:  29 1/3”  31.5 degrees   
balanced handle height for 48“ tall 200# load:  52 1/2”  52 degrees