Vintage Campagnolo Record 54T Chainring NOS 135 BCD 5-Arm Road Bike Italy. Model: Strada 135-AS outer chainring from the Campagnolo Record era. Part type: 54-tooth road chainring for double cranksets. One nut installed – this may have been test-fit. Color: Silver anodized aluminum finish. Material: Aluminum alloy construction. Tooth count: 54T with stamped “54-AS” marking on the ring. Bolt circle and mounting: 135 mm BCD with 5-arm pattern as indicated on the bolt-circle gauge. Markings and logos: Stamped “BREV CAMPAGNOLO” and “MADE IN ITALY” on the outer face. Intended use: Road, racing, and time trial / triathlon bicycles using compatible 135 mm BCD Campagnolo cranksets. Weight: 105 g as displayed on the digital scale. Packaging: Original Campagnolo printed paper sleeve and outer plastic bag with blue graphics and model information. Set includes: Single 54T Campagnolo Strada 135-AS chainring; no crankarms, bolts, tools, or additional accessories are included. New old stock Campagnolo 54T outer chainring that appears unused with sharp unworn teeth and clean machined surfaces.