The high watermark. The last of the pure superbikes. Unexpurgated. The pinnacle. All downhill from here… K5: Seldom has a consonant and number pairing had such significance in the motorcycle world as the one affixed to Suzuki’s 2005-06 GSX-R1000. Those outside Hamamatsu’s inner circle didn’t know it at the time, but after the two-year sales [...]