Honda CG125: the commuter built to survive neglect

HONDA

Honda CG125 ES4
A Honda CG125 ES4 with an aftermarket rack and top box. Photo by Urbancowboy89, CC BY-SA 3.0 via Wikimedia Commons.

The CG125, or Honda CG, is a commuter motorcycle made by Honda. It was in production from 1976 to 2008 in Japan and has been built in Pakistan since 1992, powered by a 124 cc four-stroke overhead-valve single that has changed little over the years.

Honda CG125 at a glance

Honda CG125 key facts
Maker Honda
Production in Japan 1976–2008
Production in Pakistan since 1992
Engine 124 cc four-stroke overhead-valve single
Developed from Honda CB125
Valvetrain pushrods, overhead valves
Air filter washable foam
Chain fully enclosed until 2004
Global source from 1985 Brazil
Pakistan and Turkey from 1992 W and M models
Pakistani price, Sept 2025 238,500 rupees
Tank 9.2 litres

Based on one source, the English Wikipedia article on the CG125.

History of the Honda CG125

Built for hard use

The CG125 was developed from the CB125 for developing countries’ markets. The two models were very similar and shared many parts; the main difference was the top end, because the CB used an overhead cam. Many Honda OHC engines of that era had weak cam chains and tensioners and tended to wear camshaft bearings if oil changes were skipped. Honda knew that riders in developing countries did little preventive maintenance, so the CG was designed to be reliable with minimal servicing.

Simple engineering

The CG125 uses overhead valves with pushrods, a washable foam air filter and a fully enclosed chain. The enclosed chain was dropped in 2004.

Production around the world

The CG was originally manufactured in Japan, but the source for the global market moved to Brazil in 1985 and to Pakistan and Turkey in 1992 for the W and M models. In Pakistan the original CG125 is still produced by Atlas Honda; apart from cosmetic changes it has remained the same as the 1980s Japanese bike, with a 9.2-litre tank and a Euro 2-compliant overhead-valve engine with kick start.

Copied everywhere

The CG125 engine design has been widely replicated and reverse-engineered, particularly in Asia, Africa and Latin America. These unlicensed or locally produced variants are common in budget commuter motorcycles because of their low cost, simplicity and ease of maintenance, although build quality varies.

Design and features

  • Pushrod overhead-valve engine: chosen for reliability without regular servicing.
  • Washable foam air filter: cleanable instead of replaceable.
  • Enclosed chain: protected from dirt until 2004.
  • Worldwide production: Japan, Brazil, Turkey and Pakistan.

Honda CG125 versions

  • CG125 (1976): the original Japanese commuter.
  • Brazilian production (1985): source for the global market.
  • W and M models (1992): Pakistani and Turkish production.
  • Pakistani CG125 (to the present): essentially the 1980s design.

The CG125 replaced the CB line’s small-capacity role with a simpler engine and was itself replaced in Europe by the CBF125. More Hondas are in the Honda collection.

Sources