Originally Posted by Pablo
You can do it easiest with a caliper. Even a $2 plastic one. You can also measure the circumference and plug the number in here: Diameter Calculator
Yes it's sturdy, we have sold 1000's now. Just make sure the bolts are seated, not bottomed in the engine case. No engine sway!
Ok we'll I'm glad to hear that their real sturdy. I'm gonna go find my calipers and measure everything up and send in an order. Hopefully I'll be riding again by next week.