The Yamaha RD400 is an iconic motorcycle from the 1970s that holds a special place in the hearts of vintage bike enthusiasts. Here’s an overview of its key features and significance:
General Overview
- Production Years: 1976–1979
- Engine: 398cc, air-cooled, two-stroke parallel twin
- Power Output: Approximately 40 horsepower at 7,000 rpm
- Transmission: 6-speed manual
- Top Speed: Around 105 mph (169 km/h)
- Weight: ~175 kg (386 lbs) (dry weight)
- Fuel System: Mikuni carburetors
Notable Features
- Performance:
- The RD400 was renowned for its lively and responsive two-stroke engine, which delivered impressive acceleration and top-end power for its class.
- Its lightweight design and agile handling made it a favorite among riders looking for a sporty ride.
- Braking and Suspension:
- It featured front and rear disc brakes, which were advanced for its time and offered better stopping power compared to its competitors.
- The suspension system, with telescopic forks in the front and dual shocks in the rear, provided a good balance between comfort and performance.
- Design:
- The RD400 sported a minimalist, classic styling with a sleek tank, round headlight, and a flat, café-racer-inspired seat.
- Offered in several striking color schemes, the bike exuded a retro charm.
- Evolution of the Series:
- The RD400 was part of Yamaha’s RD series (Race Developed), which included models like the RD250 and RD350.
- It succeeded the RD350 and included refinements like a longer stroke engine and a smoother power delivery.
- The final version, the RD400F Daytona Special, was introduced in 1979 with further upgrades before the RD series transitioned into the Yamaha RZ series.
Cultural Significance
- The RD400 was a favorite among motorcycle enthusiasts and racers alike, especially in the burgeoning café racer and street racer scenes of the 1970s.
- Its two-stroke “ring-ding” exhaust note became legendary, as did its reputation for being a thrilling yet approachable performance machine.
Legacy
- Today, the Yamaha RD400 is considered a classic and sought-after vintage motorcycle. It’s a popular choice for restorations and custom builds.
- Its enduring popularity is a testament to Yamaha’s engineering prowess during the golden era of two-stroke motorcycles.