For BMW S1000R S1000RR S1000XR Motorcycle Manual Cam Timing CNC Chain Tensioner Features: Condition: New production Material: Aluminum CNC Color: Black/Silver Package Included: 1pc cam chain tensioner Fitment: For BMW HP4 1000 2012-2014 For BMW HP4 1000 Carbon 2013-2014 For BMW S1000R 2013-2019 For BMW S1000R ABS 2016 For BMW S1000R Sport 2014-2019 For BMW S1000RR 2009-2018 For BMW S1000RR Premium 2011 2014 For BMW S1000RR ABS 2012 2013 2016 For BMW S1000RR Premium ABS 2012-2013 For BMW S1000RR Standard 2014 For BMW S1000XR 2015-2019 (2015-2018) For BMW S1000XR ABS 2016 For BMW S1000XR Sport SE 2017-2019 For BMW S1000XR Sport 2018-2019 For BMW S1000XR ESA 2017 Product features: Manual cam chain tensioners are designed to replace the automatic and hydraulic tensioners on high-performance engines. The automatic adjusters can back out when the throttle is closed suddenly at high RPM. This allows the cams to go momentarily out of time, which may result in bent valves or engine damage. Hydraulic tensioners can apply excessive tension on the chain guide under high RPM and high oil pressure conditions, leading to premature wear. Both issues can be resolved by installing a manual tensioner. Regardless of engine operation, cam chain tension remains constant. A manual cam chain tensioner is recommended for performance riding applications. Manual tensioners are CNC machined from billet aluminum to precise tolerances for accurate fit and reliable performance.