I weighed my scooter with no top box,. my new tire changer is ready to use, made some plugs out of maple wood to hold the rim and found a length of 1/2 inch steel rod in my garage, it fits in the center post, through the rim,,the tire changer came with a 1 inch center post, it,s to big for my rims ,. my axel is 9/16 inch front wheel ,. new toy so I took my front wheel off and tried it out, it works,.wow??? not bad for $39.95, thank you harbor freight,.