Vintage Campagnolo Record Crankset. 170mm 144 BCD Square Taper Road Bike. Vintage Campagnolo Record Strada road crankset for classic Italian road bicycles and restorations. Part type: 5-arm double road crankset without chainrings, including left and right crank arms with integrated spider for square taper bottom brackets and 170 mm arm length. Material and construction: forged aluminum alloy crank arms and spider with square taper bottom bracket interface and standard 9/16 x 20 F pedal threads. Color and finish: silver polished alloy with machined flutes on the arm faces and brushed surfaces on the back of the arms and spider. Logos and markings: arm faces stamped with the Campagnolo shield logo; back of right arm stamped 170 STRADA with a diamond date code; pedal eye areas stamped 9/16 x 20 F; bolt circle gauge chart in the photos shows a 144 marking aligned with the chainring bolt holes. Actual Measurements: BCD: 144 mm. Bolt circle gauge reading in photos: 144; digital scale reading in photos: 430 g. Only the single left and right Campagnolo Record Strada crank arms with integrated 5-arm spider shown in the photos are included; chainrings, chainring bolts, dust caps, bottom bracket, ruler, gauge chart, scale, zip tie, and any other background items visible in the pictures are not included. Used vintage Campagnolo Record Strada crankset removed from a built road bike with cosmetic wear from prior use and storage. Arm faces, edges, and pedal ends show shoe rub, scratches, nicks, finish wear, and one deeper scuff on the right arm as seen in the photos. Square taper bores and pedal threads show installation marks and grease; listing includes only the left and right crank arms with integrated spider shown, no chainrings, bolts, dust caps, or other parts.