[Hectic]

What size sprocket would be best for the grom to get more top speed out of it?

 

[Shoebacca78]

i believe the only option is 16T. anyone else chime in???

I just bought a 14T, and it arrived today.

I then googled it, to find i went the wrong direction! if I install it, i will have a reduction in top speed but better acceleration.

I'm not racing anyone so I would prefer faster top speed. The part i don't get is...

If I'm already redlining @ 4th at 73-74mph indicated... by changing the sprocket how would i be able to go faster since it redlines at 73-74?

I don't get it...

 

[gromrevver]

i believe the only option is 16T. anyone else chime in???

I just bought a 14T, and it arrived today.

I then googled it, to find i went the wrong direction! if I install it, i will have a reduction in top speed but better acceleration.

I'm not racing anyone so I would prefer faster top speed. The part i don't get is...

If I'm already redlining @ 4th at 73-74mph indicated... by changing the sprocket how would i be able to go faster since it redlines at 73-74?

I don't get it...

You may not have the power to hit the rev limiter with a 16 tooth on a stock bike, but it changes your gear ratio so it'll give you a higher speed when you hit the limiter the speedometer will be wrong so you'll need a gps or an app on your phone to check the correct speed


Sent from my iPhone using HondaGrom.net

 

[StrayDog]

I tried a 16t front.
The engine just could not pull it
Even the 15t I struggle to reach max revs.
I think it all depends on your weight, and the type of road you are using.
If it is dead flat everywhere and ya weigh fukall you may get away with with a 16t.

Dog

 

[LateNA]

You are looking at it wrong shoeie. It doesn't redline at 73-74 MPH, look at it as redlining at 9500 RPM in 4th. By changing sprockets you can make that a whole slew of different MPH numbers. The only reason to go with a 16t sprocket up front is if you find yourself hitting the rev limiter with the stock front sprocket often. If you don't hit the rev limiter with stock sprockets then you are wasting your time throwing on the 16t.

 

[MOBSTER]

do a plus 1 or 2 in the rear. no speedo change.

 

[Shoebacca78]

You are looking at it wrong shoeie. It doesn't redline at 73-74 MPH, look at it as redlining at 9500 RPM in 4th. By changing sprockets you can make that a whole slew of different MPH numbers. The only reason to go with a 16t sprocket up front is if you find yourself hitting the rev limiter with the stock front sprocket often. If you don't hit the rev limiter with stock sprockets then you are wasting your time throwing on the 16t.

latena,

thanks for explanation. there are two similair threads going on. and i posted on the other thread that, since i installed the chimera intake combined with my yoshi, when i have a tailwind, i have hit the rev limiter a few times. 4-5 in less than two weeks.

since i,m only 145pounds. i think the 16T might work for me.

 

[LateNA]

Yeah, I read that thread. The 16t isn't that expensive and takes all of 5-10 minutes to change, so roll the dice and let us know how it works for you.

 

[Shoebacca78]

Yeah, I read that thread. The 16t isn't that expensive and takes all of 5-10 minutes to change, so roll the dice and let us know how it works for you.

Ordered a 16T from amazon, I hope it fits, because i just called Jt Sprockets and they said that they don't offer a sprocket for groms.

Amazon.com: JT Sprockets JTF252.16 16T Steel Front Sprocket: Automotive

I saw listed at hard racing that they sell jt 13,14,15 T sprockets by JT. And the photos shows the JT252.

 

[CAMIN CIDER]

Be aware, when you change sprockets, your MPH indicator WILL be off.

 

[Shoebacca78]

Be aware, when you change sprockets, your MPH indicator WILL be off.

Yes, I had been told that. So when I make speed tests I will need to use an app on my gps to find my actual speed.


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[BAD ASS TA WS6]

Lots of misinformation spread throughout all these threads. Change sprockets = speedo calibration off. Can be fixed with a speedo healer, and then GPS app or Navi to verify MPH and dial in.

Or if you're running one of the bigger rear tires out there, you may be within stock calibration range 1 or 2 teeth up in the rear.

If you want to go faster and are hitting Rev limiter in 4th on stock gearing, a 16t front or 33t rear is your next step. 16T will have a bigger effect then the 33 rear, and is effectively like running around what a 31t rear would offer. Keep in mind chain adjustment, you may max out the stock chain on certain setups

 

[Hectic]

Thanks for all the info.

 

[offroadtoys]

do a plus 1 or 2 in the rear. no speedo change.

This is not true! CAMIN is right. Any change to your gearing front or rear will affect the speedo accuracy. A change to your rear tire tire size will have an effect on it too!

(sorry BAD ASS, I missed your post!)

 

[forkseal]

Who cares about speedo? Ive never heard of anyone hitting limiter with stock gearing.-1 +2 is fun for wheelies

 

[GROM RYDER]

I dropped down to a 13t sprocket in front and I red line at 65-68 mph / 9500 but my actual speed is 55-58. (found out the wrong way lol) I was pulled over doing what I though was 60 in a 40 but was then told it was 50 that I was going. lol had to check with a speed gun I lost 10 mph top end but my acceleration was great. more access to quick speed and I way almost 180. I am going to get a 39 tooth in the rear. for good sprocket options see moped motion on ebay. they get me hooked up on a lot of parts down here in florida.