Check the listing for details. ntnmotor 8pcs 1" Threaded Bicycle Headset Combo- Gas Motorized Bicycle (Black). Color: Black, Condition: New. Listed at 11.66 USD. Key Words: 8pcs 1 " Threaded Bicycle HeadsetsCompatible with 30mm Head Tube and 25.4mm Fork;Diameter:22.2*30*27; Height:35mm(effective height:33mm)Bearing: Caged (5/32"*16*2pcs)Finish:CP/ED black/Material:steel Product Description： NTN 8 pcs 1 " Threaded Bicycle Headsets - Gas Motorized Bicycle (Black); package: 1 headset 8pcs 1" Threaded Bicycle Headset Combo- Gas Motorized Bicycle (Black)8pcs 1 " Threaded Bicycle HeadsetsCompatible with 30mm Head Tube and 25.4mm Fork;Diameter:22.2*30*27; Height:35mm(effective height:33mm)Bearing: Caged (5/32"*16*2pcs)Finish:CP/ED black/Material:steel8pcs 1 " Threaded Bicycle Headsets8pcs 1 " Threaded Bicycle HeadsetsCompatible with 30mm Head Tube and 25.4mm Fork;Diameter:22.2*30*27; Height:35mm(effective height:33mm)Bearing: Caged (5/32"*16*2pcs)Finish:CP/ED black/Material:steelCompatible with 30mm Head Tube and 25.4mm Fork;8pcs 1 " Threaded Bicycle HeadsetsCompatible with 30mm Head Tube and 25.4mm Fork;Diameter:22.2*30*27; Height:35mm(effective height:33mm)Bearing: Caged (5/32"*16*2pcs)Finish:CP/ED black/Material:steelThank you so much for views, We truly care much more your purchasing experience,We are 100% dedicated to your complete satisfaction. if you have any questions,please freely to ask and I will do my best to get back to you promptly!Products usually shipped on the second business day and you will receive message of tracking id.NTNMOTORCYCLE is registered officially in year 2012 and started business in year 2008, we can provide engine kits, high performance spare parts of engine, motorized bicycle and spare parts of bike. hope you can have a great time when shopping with us.