CMC Motorcycles is proud to offer this stunning 2016 BMW S1000RR, a supersport ... equipped with a premium Akrapovic exhaust, enhancing the bike's aggressive sound while optimizing performance.

Valves have a hard life. Whacked open by a cam then slammed shut by a valve spring, on a high-performance motor such as the BMW S1000RR, the inlet and exhaust valves go through this cycle at an ...