Has anybody have a history with the Avon Roadrider tires. My CalVin is due but the Roadriders in the correct size for my bike are universal, good for either front or rear. I can get a rear specific in the 150/70/17 size. Have a Metzler marathon rear and lazertec front on right now and consider them ok at best. Did not care for the BT45s after their newness wore off....Mike