Product Description Replacement chain tensioner for use with the Moose Racing Agroid RS-16 E-Balance Bike. Sold individually. Moose RS-16 E-Balance Bike Replacement Chain Tensioner at Motosport Browse all Motosport deals $11.95 In Stock at Motosport Price verified today Buy Now at Motosport Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Moose Gender Unisex Condition New MPN 49500040 Moose