This thread is about front tire only, 90/90-21. I have an XR650R that I ride 50/50. The Sahara is about twice the price of the Karoo, and looks to be more of a 70 street and 30 dirt. The Karoo looks to be 70 dirt and 30 street. Assuming this is true (or close), what else do I get from the Sahara for the extra $50? I'd rather lean slightly toward dirt if I have to make a sacrifice. Any chance that the Sahara is equal to the Karoo in offroad situations? The Sahara looks to be a clear winner for the street (but not sure). Is it possible that the Sahara, being $50 more expensive, is better than the Karoo both on the street AND in the dirt? Mike.