Cam Chain - Tsubaki BF05T x 102 with rivet link. Pitch .315" (8.0mm.) Fits: XS1/XS1B/XS2/TX650 1970-73 (34 tooth cam). Made in Japan NOTE:Link pitch differs from chains used on later 650's. For 70-73 650's Only! Installation Note: Cam Chain IS absolutely correct original brand/size/length/type Original install will be Very tight as chain is pressure injected with grease at factory and head gasket is not yet compressed. Install with tensioner assembly out and it may be necessary to pry chain over last half tooth of cam sprocket to get the chain in place so joiner link can be installed. Chain will loosen once head is torqued and engine is run a short time.