Profile Design Stoker 26 TT Bar: 26.0mm diameter across width of bar. Allows for the widest aerobar clamping area available. Perfect "Stoker Bar" for tandems. Double-butted 6061-T6 aluminum construction. Shot peened and anodized finish for added strength and durability. Pre-drilled for internal cable routing. Measured center-to-center. No drop for more upright position.