The 2021 Honda Rebel lineup spans two engines, delivering different horsepower figures: the lightweight CMX500 Rebel around 46 horsepower, and the larger CMX1100 Rebel around 86 to 87 horsepower.
In more detail, Honda’s 2021 Rebel family comprises a 471cc parallel-twin in the CMX500 and a 1,082cc parallel-twin in the CMX1100. The 500’s output is tuned for approachable torque and low-end response, while the 1100 pursues stronger highway performance with higher horsepower. For context, horsepower helps determine how quickly the bike accelerates and how well it maintains speed at highway RPMs, while torque most directly influences feel at low speeds.
Power profiles by model
The following figures summarize the horsepower for each 2021 Rebel model.
- CMX500 Rebel: approximately 46 horsepower (about 34 kW).
- CMX1100 Rebel: approximately 86–87 horsepower (about 64–65 kW).
These numbers reflect typical published specifications and can vary slightly by market or testing conditions. For most riders, the 500 is light and approachable, while the 1100 offers more robust highway performance and top-end capability.
Riding implications
Horsepower interacts with weight, gearing, and torque to shape how the bike accelerates and maintains speed. The Rebel 500 is often chosen for beginner-friendly handling and city riding, while the Rebel 1100 suits riders seeking stronger acceleration and confident highway overtakes.
Summary
In brief: the 2021 Honda Rebel line includes two power outputs — about 46 hp for the CMX500 Rebel and about 86–87 hp for the CMX1100 Rebel — catering to different riding styles and experience levels.