Accutronix risers fit 1'' handle bars on standard Harley's and many metric bikes. They are drilled and tapped for 1/2''-13 mounting bolts. The uniquely designed top caps conceal the handle bar clamp bolts. These risers are machined from 6061 T-6 Billet Aluminum and are available in polished billet aluminum, chrome, or black anodized to match our grips and pegs. (Sold in pairs)