How many new threads can someone start with the same questions about different sleds?
You can ask 10 different people about top speeds and you will get 12 different answers. Firecats are faster due to the weight and track length. The chaincase sleds are quite a bit faster than the DD sleds as well. A good running chaincase F7 will run 115mph+ from the factory. I've seen the DD sleds run 108-110 in similar conditions. As for crossfires, I don't know the exact top speed but the 1.25 tracks will kill top end vs. a 1" track on a firecat. I'd say there's at least 5-8mph difference on top end. They are completely different sleds. The CROSSfire is a CROSSover sled, whereas the firecat is a trail/lake racer sled. Like I said in your last post, no matter how much you spend on a firecat, it will never be as good as any mountain sled in the deep snow.