They come heat treated to proper specs required with these new clutches, and have a Black Oxide coating to prevent wear and corrosion. Tip of weight is adjustable to add about 2-3 grams if needed. Your friends at Classic Cycle Parts appreciate your Business! Before purchasing this item, please make sure that you have reviewed and understand our POLICIES. You can find our POLICIES by clicking on the button either above or below our Item Description.This item is in the category "eBay Motors\Parts & Accessories\Snowmobile Parts\Clutch & Drive Belts".isell" and is located in this country: US. This item can be shipped worldwide.