Vintage Shimano 6 Speed Freewheel 28T Silver Index Threaded Road MTB 6s Bike

Brand: Shimano.

Model: Vintage 6-speed indexed threaded freewheel with 28T low sprocket marked "28-LOW INDEX" on the largest cog.

Part type: Screw-on rear freewheel cluster for multi-speed road, touring, or mountain bicycles.

Speeds and gearing: Six-sprocket design with a 28-tooth largest sprocket to provide lower climbing gears on compatible drivetrains.

Color and finish: Silver finish on the sprockets and freewheel body with a darker inner ratchet ring and hardware.

Material: Steel sprockets and body with steel ratchet mechanism and internal hardware.

Freewheel body and mounting: Standard threaded freewheel body designed for use on compatible screw-on rear hubs.

Drivetrain compatibility: Intended for vintage 6-speed indexed shifting systems on road, touring, or mountain bikes; verify hub threading, frame spacing, and derailleur capacity for your specific setup.

Markings and logos: Shimano branding stamped into the freewheel body with "28-LOW INDEX" and additional letters and numbers stamped into the sprockets.

Weight: 430 g as shown on the digital scale display.

Set includes: Single Shimano 6-speed threaded freewheel only as pictured; scale, workbench surface, and any other background items are for measurement or photography reference only and are not included.

Approximate era: Classic Shimano indexed freewheel from the late 1980s to early 1990s 6-speed drivetrain period.

Vintage Shimano 6-speed threaded freewheel. Some tooth wear, has miles left. Spins well. Ratchet body and threads have accumulated old grease and dirt, red paint marks are present on several teeth, and the listing includes the single freewheel only; scale and any other background items are not included.