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 ...
CMC Motorcycles is proud to offer this stunning 2016 BMW S1000RR ... The exhaust not only delivers a thrilling soundtrack but also reduces weight, contributing to the S1000RR’s razor-sharp ...
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