Here's the best link with all the specifics... One of my favorites, and only ball I've ever used at Nationals from outside 5 well (got the front 9 once and only once...)http://123bowl.com/bowling-balls/storm/thunder-road/
Thunder Road, Victory Road, just 2 of the road series balls out of like 5 or 6 of them. They led to the Hyroad and Cross Road. Just go on You Tube and watch some of them. There’s an old video of J Rickets having a blast with the Victory Road. When you see how 4 by 3 and low res the videos are, you’ll see how old those balls really are. Is it any good? I have no idea!I wouldn’t buy it. You can just buy a Hyroad thats new at least.