Sporty, but not uncomfortable, light, yet with enough punch even in the lower gears. A friend of mine owns the 2020 Ninja 650 and that bike is a bit bigger and heavier, not as nimble. The seating position is also a bit sportier on the Ninja 400 and the seat is stiffer. But what I personally really like about the 400 in comparison with the 650
Its not about peak HP, the powerband is much more important. 3. geekometer96 • 5 yr. ago. Hmm A new 400, or a possibly used maybe not used 300 for about a thousand less 2. celestiaequestria • 5 yr. ago. A new 400 is $6k OTD, a barely used 300 is $3.5k. A used 650 destroys every bike on this Dyno chart. As for the shifting part usually about mid revs so like maybe between 5000-7000 rpm. As long as your covered: helmet, gloves, jeans, jacket and high top sneakers or riding boots you should be fine. When I started riding on my ninja 300 I bought frame sliders. With 45K of miles below my belt I’d say frame sliders are more like tip over protection. I went for a full exhaust with a high flow air filter and a tune to get some more power. 3. antdrizzle8 • 5 mo. ago. I like the sound of the stock. It's a 400, you really can't make it sound "good". Don't matter how much money you spent on a slip on, it will still sound like a 400. Save the money for your next bike. 1st gear I shift between 6 to 8k, but the rest I go to almost rev limit. I only shift early in 1st because I feel like there’s some vibrations and noise I don’t like at high rpm in 1st 😂 I’m sure it’s there in the rest of the gears but moving fast enough it’s harder to hear lol