Vintage Shimano 39t Chainring Set 130 BCD 53/39T 5-Arm Silver Road Bike

Shimano SG 39t double chainring set for classic road and racing bicycles.

Tooth counts: 53T, 39T.

BCD: 130 mm.

Intended use: multi-speed road or racing double crank drivetrains with indexed or friction shifters.

Material and construction: silver anodized aluminum chainrings with machined shift ramps and steel pickup pins on the outer ring.

Logos and markings: "Shimano SG B-53" stamped on the outer ring with "B-38" marking on the inner ring.

Weight: 130 g.

Used Shimano SG 39t double chainring set with visible tooth wear, chain rub, and cosmetic scratches on both rings. Faces and edges show small nicks, finish wear, and light drivetrain grime, plus a few tiny spots of surface oxidation. Shift pins, ramp features, and all teeth are present and intact; listing includes the two chainrings only, no chainring bolts or other hardware.