Built around Honda's enduro - offroad motorcycle platform, the 1977 Honda CT 125 relies on a 124 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. Internal engine geometry specifies a bore and stroke of 56.5 x 49.5 mm (2.2 x 1.9 inches) with a 8.0:1 compression ratio.
On the scales, the CT 125 measures 108 kg (238 lbs) dry. Rider ergonomics and chassis geometry center around a 813 mm (32 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,295 mm (51 in) wheelbase engineered for quick, flickable steering geometry. The 6.05-liter (1.6 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 92 km/h (57 mph).
Standover Height
813 mm (32 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression8.0:1
Bore x Stroke56.5 x 49.5 mm (2.2 x 1.9 inches)
Fuel SystemCarburettor
IgnitionKick
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchManual
Performance
Top Speed91.7 km/h (57.0 mph)
ExhaustSingle black exaust
Chassis
Rake28.7°
Trail110 mm (4.3 inches)
Front SuspensionInverted Forks
Rear SuspensionTwin Rear Spring
Wheelbase1295 mm (51.0 inches)
Wheels & Brakes
Front Tyre3.00-19
Rear Tyre4.00-18
Front BrakesExpanding brake (drum brake)
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight108.0 kg (238.1 pounds)
Seat Height813 mm (32.0 inches) If adjustable, lowest setting.
Alt. Seat Height813 mm (32.0 inches) If adjustable, highest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
