Allround · 1957
S-125
Technical Overview
1957 Harley-Davidson S-125 Technical Analysis & Specification Breakdown
Positioned in Harley-Davidson's allround motorcycle lineup, the 1957 Harley-Davidson S-125 features a 125 cc (7.6 cu in) single cylinder, two-stroke configuration.
On the scales, the S-125 measures 90.7 kg (200 lbs) dry.
Within MotoLibrary's Harley-Davidson archive, this model family spans 12 indexed model years from 1948 to 1959, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Engine
Displacement 125.0 ccm (7.63 cubic inches)
Engine Type Single cylinder, two-stroke
Fuel System Carburettor
Transmission
Final Drive Chain (final drive)
Chassis
Front Suspension Girder fork coil spring
Rear Suspension Rigid-
Wheels & Brakes
Front Brakes Expanding brake (drum brake)
Rear Brakes Expanding brake (drum brake)
Dimensions & Weight
Dry Weight 90.7 kg (200.0 pounds)
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Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Rider Profile
Who Is This Bike For?
🌍
Best For
All-Round & Adventure
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