Pro-tek rear sprockets are completely constructed on precision CNC machines from 7075 T6 aerospace quality aluminum. We do not gear hob the teeth. This maintains concentricity with the hub diameter since both are cut at the same time. The teeth are machined to above the latest industry standards creating an accurate tooth profile that fits precisely on the chain rollers. This insures maximum chain and sprocket longevity and a more efficient power transmission. We then increase durability by brite-dip anodizing each sprocket is red finish for protection from corrosion. Made in the USA, normally retail for $59.95. This is for a 520 Pitch rear sprocket 33 tooth in red anodizing. Fitment: '72-'94 Yamaha TZ-250 Please keep in mind this is a 520 Pitch 33 tooth rear sprocket and some of the applications are stocked with either 530, 525 or 520 pitch. Please check the chart below for accurate fitment with stock applications and conversions for your bike. Thank You! HTTPS://www.protekk.com/media/documents/sprocket_app_chart.pdf Track Page Views With Auctiva's FREE Counter