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Discussion Starter #1
Can't find any charts showing its powerband, but according to a reviewer the Z650 has strong mid-range punch which if you're like me using it mainly in the city, this goes a long way in your overall enjoyment. But with all of that mated to a 6-speed transmission, is it really enough for you?

P.S.
To help fuel this discussion here's a quick look at engine specifications:
  • Engine: 4-stroke, 2-cylinder, DOHC, liquid-cooled
  • Displacement: 649cc
  • Bore x Stroke: 83.0 x 60.0mm
  • Compression Ratio: 10.8:1
  • Fuel System:DFI® with Keihin 36mm Keihin throttle bodies
  • Ignition: TCBI with electronic advance
  • Transmission: 6-speed, return shift
  • Final Drive: Sealed chain
 

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The power delivery seems to be just about the right combo for an everyday, run-around, economical, fun bike. Just wish it wasn't so porky, could do with a diet. Also wouldn't mind a bit more power at lower rpms.
 

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Discussion Starter #5
thanks for posting that
from what i understand that's a good power to weight ratio doubt anyone will have an issue with it.
only thing now is to see a chart showing how power is distributed
 

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Can't find any charts showing its powerband, but according to a reviewer the Z650 has strong mid-range punch which if you're like me using it mainly in the city, this goes a long way in your overall enjoyment. But with all of that mated to a 6-speed transmission, is it really enough for you?

P.S.
To help fuel this discussion here's a quick look at engine specifications:
  • Engine: 4-stroke, 2-cylinder, DOHC, liquid-cooled
  • Displacement: 649cc
  • Bore x Stroke: 83.0 x 60.0mm
  • Compression Ratio: 10.8:1
  • Fuel System:DFI® with Keihin 36mm Keihin throttle bodies
  • Ignition: TCBI with electronic advance
  • Transmission: 6-speed, return shift
  • Final Drive: Sealed chain
Oh yeah. This bike is FAST for its size. I got it because it has just about the exact same dimensions and geometry as an FZR400, but way more torque and horsepower. It hauls. Turns on a dime. VERY flat powerband and a nice punch on top. Getting Q3s installed this week as the stock tires are a little too touring oriented. This bike is worth the dough, very well-built.
 

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Oh yeah. This bike is FAST for its size. I got it because it has just about the exact same dimensions and geometry as an FZR400, but way more torque and horsepower. It hauls. Turns on a dime. VERY flat powerband and a nice punch on top. Getting Q3s installed this week as the stock tires are a little too touring oriented. This bike is worth the dough, very well-built.
That's a glowing review for this bike. Any changes other than the tire that you feel need to be made ?
 

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That's a glowing review for this bike. Any changes other than the tire that you feel need to be made ?
So far so good. Also own 2017 SV650, very good bike, Z650 handles better as far as sharp, sporty handling. Brakes are much stronger initially too. Z650 is the sportier machine by a good margin. Lighter too. SV650 is better for longer rides, freeway, touring. Either bike is really good but I would go with Z650 for a more pure sportbike or track days for sure.
 
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