Straight pivotal fitting. Made from Aluminium which has been internally ovalised for strength, stiffness and lightweight. Laser etched logos.. Specification:. \u2022 Size: 31.6 mm. \u2022 Length: 300mm. \u2022 Colour: Black.\nPLEASE NOTE: This seatpost only fits 'pivotal' compatible saddles.  It does not fit the more common saddles which feature two rails.\n\nBMX Bike Seatpost Gusset MTB Pivotal 31.6 x 300mm Black\n\nDescription\n\nStraight pivotal fitting. Made from Aluminium which has been internally ovalised for strength, stiffness and lightweight. Laser etched logos.Specification:\n--Size: 31.6 mm\n--Length: 300mm\n--Colour: Black\n\nPLEASE NOTE: This seatpost only fits 'pivotal' compatible saddles.  It does not fit the more common saddles which feature two rails.\n\nThank you for visiting our product page.\n\nPayment Policy\n\nWe accept all payment methods supported by eBay.\n\nShipping Policy\n\nWe use Royal Mail and Amazon Shipping for the majority of our UK orders d.