APE Manual Camchain Tensioner Pro Series - BMW S1000RR Pro Series

USA made, genuine APE manual camchain tensioner. They cannot back off like the oem type automatic tensioners. They are a must for any hard ridden standard or tuned machine. Beware of cheap copies! Easy to install.They often take up more slack than an std tensioner,so can sometimes also stop chain noise.Installation Guide: http://www.APEraceparts.com/tech/tensioners.html The new APE Pro Series camchain tensioners are an upgrade design of the industry standard APE Classic camchain tensioner. originally designed for the racer who frequently needs to adjust the camchain adjustment due to extreme use and frequent engine tear downs.The easy access socket head adjuster screw, is perfect for tight spaces.The interior O ring design ensures that despite repeated adjustment the O ring will not flatten out eventually and weep. Most pro series tensioners come with a gasket or o ring as required.