If you dont mind me asking how much did you pay for Shinko's? And why Shinko's when you got Michelin, Bridgestone, Dunlop and Conti's that carry 140?
I've never tried Shinko's have ridden with guys on them that haul ass. I might try them on the rear casue i dont mind if they slip and slide I don;t think I will ever put them on my front. Its a mental thang not so much tire performance. I have nuff to worry about riding I dont need to worry if the front is gonna fail me. Thats why I only run 211's up front. Rear whatever namebrand is on sale. DID YOU GET SHINKO FRONTS TOO? The guy that sold them to you, does he ride SM on his DRZ or just commute?
Take it easy first few miles, go find yourself local twisties put your balls to the gas tank and ride. Remember you gotta get the sides warmed up and scrubbed in too. Just cause you rode 20 miles on freeway doesnt mean you can ride the edges unless you like slipping and sliding. Which you must cause you got a SM.
Let me know how those Shinko's work for you.