SPECIFICATIONS: Thread Length: 45 mm / 1.77 inches/ Runner Central Section Diameter: 24.5 mm / 0.96 inches/ Runner Inner Diameter: 14.5 mm / 0.57 inches/ Runner Outer Diameter: 37 mm / 1.46 inches/ Runner Width: 23.5 mm / 0.93 inches/ Tensioner Overall Length: 88 mm / 3.46 inches/ Diameter of Tensioner Hole: 15 mm / 0.59 inches Suitable for 420 and 428 chain sizes, the perfect spare part A valuable addition to any pit bike to keep the chain aligned and tensioned Fits many of the big Chinese import makes including Stomp Demon X, WPB, Orion, M2R, Lucky MX, Thumpstar, Explorer, Braaap, Atomic, Pitpro, Pitster Pro, DHZ, SSR, Piranha and many more
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