The Suzuki TM400 Cyclone is a legendary motocross bike, often remembered for its raw power and challenging handling. It played a significant role in the evolution of motocross bikes and remains a topic of fascination among enthusiasts.
General Overview
- Production Years: 1971–1975
- Engine: 396cc, air-cooled, single-cylinder, two-stroke
- Power Output: Approximately 41 horsepower at 7,000 rpm
- Transmission: 5-speed manual
- Weight: ~101 kg (223 lbs) (dry weight)
- Top Speed: ~80 mph (129 km/h)
Key Features
- Engine Performance:
- The TM400 Cyclone was equipped with a powerful 396cc two-stroke engine, delivering high performance for competitive motocross.
- Its powerband was notoriously abrupt, earning it a reputation for being difficult to control, especially for inexperienced riders.
- Frame and Suspension:
- Frame: Lightweight tubular steel.
- Front Suspension: Telescopic forks.
- Rear Suspension: Dual shocks.
- The suspension was basic by modern standards but suitable for the early 1970s motocross scene.
- Its lightweight design made it nimble but also contributed to its tendency to be unstable under power.
- Challenging Handling:
- The TM400 became infamous for its “unpredictable” handling. Sudden bursts of power and a lack of stability often caused the rear wheel to break loose, making it hard to control.
- The bike’s nickname, “The Widowmaker,” reflects its demanding nature and the skill required to ride it effectively.
- Braking:
- Drum brakes on both the front and rear wheels were standard for the era, offering moderate stopping power but requiring careful modulation.
Cultural and Historical Significance
- Early Innovation in Motocross: The TM400 was Suzuki’s first attempt at a large-displacement motocross bike. It marked the company’s commitment to the sport and paved the way for later successes.
- Lessons Learned: The challenges of the TM400 led to valuable lessons in motocross bike design. Suzuki would go on to produce more refined and competitive models in the years following.
- Collector’s Appeal: Today, the TM400 is a sought-after bike for collectors due to its historical significance and its role in shaping motocross history.
Legacy
While the TM400 Cyclone’s unforgiving nature made it a tough ride for many, it remains a symbol of an era when motocross bikes were evolving rapidly. Its bold approach to power and lightweight design set the stage for advancements in handling and rider-friendly engineering.
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