The Belmont PC 7K Peg features a durable, replaceable nylon outer sleeve with a 40mm OD sleeve that reduces dropout drag, the 4mm wall thickness provides extended grind life. A more durable 7000 series aluminum core keeps the weight to a minimum and has a 14mm axle bore, 3/8 adapter included. Available in 4.5 lengths. Sold individually. Replacement sleeves sold separately. Weight: 4.5ozs. @ 4.25