Keenso Bike Stem Headset, Headset Cap Aluminum Alloy Top Fork Expander Bung 1/1.25inch

【Bites Tightly】-- Stem Headset can replace conventional star nut and top cap, a must for bike steerers. headset top can be used repeatedly, it bites tightly, does not damage the front fork, and is a must for high-end bicycles 【Safe Use】-- Headset compresso expander can reduce the risk of damage and provide additional support for the fragile top of the steerer tube 【Easy to Use】-- You can install fork expander headset with a hexagon wrench, which is easy to operate and use 【Headset Expander)】-- Headset is available in red, blue, and gold colors to meet your needs 【Weight of 50-55g】-- Headset top bike fork expander bung for 1 inch(24.5mm) or 1.25 inch(28.6mm), The weight of this product is about 50-55g