Interesting Facts About the Honda NSR 250 R MC21
The Honda NSR250R MC21 is a street-legal sports motorcycle introduced in 1990, featuring a distinctive 249cc two-stroke engine. It represents a specific generation of the NSR line, known for its advanced engine management and high-performance capabilities.
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Advanced Engine Management
Introduced in 1990, the MC21 model was powered by a 249cc 90° V-twin two-stroke engine. This powerplant was paired with PGM-III engine management and the RC-Valve power system, marking a significant technological step for the model.
High-Revving Performance
The MC21's expansion chambers are capable of handling in excess of 60 horsepower. Peak power is achieved close to 11,000 rpm, though the engine has very little over-rev capability beyond this point.
Suspension Upgrades
Owners of the MC21 can upgrade their suspension by exchanging it for SE/SP components. This modification adds compression and rebound damping for the rear shock, as well as spring preload adjustments, enhancing the bike's handling characteristics.
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Honda NSR 250 R Parts
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Last updated: 17.10.2026, 20:46
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