I used to do week long tours on my Blackbird. It was the perfect bike for that type of riding. Big, stable, smooth, torquey and good wind protection. Best stock seat I've ever used, I never felt any need for a Corbin. Handled great since I liked to travel light with only a tank and tail bag. Longest day was 1400 kms. Downsides were fuel mileage and tire wear due to acceleration and weight.
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