Highsider Standpipe Clamps. CNC-made, black aluminum clamps for standpipe diameters from 38 mm to 41 mm. Tailor-made for your bike the extensive HIGHSIDER accessories are perfectly tailored to your motorcycle. With a maximum of quality and functionality you can easily design your bike according to your wishes.Specifications: - Material: AluminiumDimensions:- Inside diameter: 41 mm, incl. insert strip reducible to 40 mm, 39 mm and 38 mmHighsider Standpipe Clamps. CNC-made, black aluminum clamps for standpipe diameters from 38 mm to 41 mm. Tailor-made for your bike the extensive HIGHSIDER accessories are perfectly tailored to your motorcycle. With a maximum of quality and functionality you can easily design your bike according to your wishes.Specifications: - Material: AluminiumDimensions:- Inside diameter: 41 mm, incl. insert strip reducible to 40 mm, 39 mm and 38 mm