Battle Of The Dyno: Kawasaki Z125 Pro Vs. Honda Grom - Page 2 - Kawasaki Z125 Forum
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post #11 of 18 (permalink) Old 06-09-2016, 04:30 PM
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Originally Posted by FangShui View Post
Thanks. That means Motorcycle.com's stating the final reduction ratio of 3.07 is wrong. It's actually 2.142, compared to 2.266 for the Grom.

So, the main difference is in the ratio of each gear, with the Z125s being lower in each of the 4 speeds.
Im curious the total calculated drive ratio including transmission ratios as well. Could make a difference.

Last edited by motopimp; 06-09-2016 at 04:37 PM. Reason: error
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post #12 of 18 (permalink) Old 06-14-2016, 06:55 PM
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The final Drive ratio on the Z is so out of wack. (way too high)

We had to install taller (and wider) tires, and a 15t front just to get it into realistic FD range.


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post #13 of 18 (permalink) Old 06-22-2016, 10:27 AM
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.

The final Drive ratio on the Z is so out of wack. (way too high)

We had to install taller (and wider) tires, and a 15t front just to get it into realistic FD range.


What does this mean? What did you accomplish?
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post #14 of 18 (permalink) Old 06-22-2016, 10:33 AM
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Curious to know as well ^ I'm pretty newb to this and that sounds really interesting. Also would like to see how it looks with the bigger tires !



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post #15 of 18 (permalink) Old 06-22-2016, 11:52 AM
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Think of it like when you ride your mountain bike.
And your in 1st gear........ you pedal really fast, but you don't really go anywhere.

Now, think about when you switch to 10th gear........ you pedal slower, and go faster.
You are basically "Bringing down the revs"

That's what we did on the Z125. By Gearing the bike down..... we brought the revs. down. So the bike has a little more top end speed but most of all isn't bouncing off rev limiter all the time.

Make the bike much more enjoyable to ride.


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post #16 of 18 (permalink) Old 06-26-2016, 11:00 PM
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Originally Posted by HardRacing View Post
.

Think of it like when you ride your mountain bike.
And your in 1st gear........ you pedal really fast, but you don't really go anywhere.

Now, think about when you switch to 10th gear........ you pedal slower, and go faster.
You are basically "Bringing down the revs"

That's what we did on the Z125. By Gearing the bike down..... we brought the revs. down. So the bike has a little more top end speed but most of all isn't bouncing off rev limiter all the time.

Make the bike much more enjoyable to ride.


.
So you think sticking with the 15t is the way to go? I've got one on and did notice it corrected the speedometer. Hopefully when the FCs cone out they'll help make up for the slight loss in acceleration. Your thoughts.

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post #17 of 18 (permalink) Old 06-27-2016, 01:01 PM
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So you think sticking with the 15t is the way to go? I've got one on and did notice it corrected the speedometer. Hopefully when the FCs cone out they'll help make up for the slight loss in acceleration. Your thoughts.
.


That's exactly our plan.

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post #18 of 18 (permalink) Old 07-14-2018, 09:10 PM
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Was browsing the forum and thought I'd share my independent results regarding the grom vs z125 dyno numbers.

We did a "dyno shootout" at the dealership that I work at (Echo Cycle, Edmonton, Alberta, Canada). A friend happened to have his grom with him and we figured it would be fun to pit them head to head. I think he did more harm than good with the pipe (6.58 hp). My Z125 only has an intake on it and a -1 front sprocket (7.89 hp). Don't forget that we're at about 2400ft elevation here so everything makes a bit less power than close to sea level.

It won't let me post the links.......but the vid's are on youtube. Search: Kawasaki Daze and the dyno runs are titled by bike throughout the day.

Anything can kill you. Pick something fun.
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