I know someone that runs one without a velke and I'd like to know if it's possible to keep up with the max speed without one? I don't think he's running, but I don't think he throws the throttle up into high gear. I'm just trying to figure out if he's wasting time because he doesn't have a velke. What kind of percentage would he be running at without one, for efficiency sake? Time is money in this business and there's no room for slow pokes. That's why I got myself a rider.