[WildRider81]

for those of you wondering how to calculate top speed per gear, there's a great calculator here:

Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator

since the Grom isn't out, select the Honda MSX125 2013 and you'll get some ideas here.

joe

 

[ruckusdriver]

Interesting.

 

[jthspace]

That's a useful site!

So the old "one up front" / "one down rear" cog tweak will make about 5mph difference at "cruise" speeds on this machine although the time to get there will be slightly longer of course (law of diminishing return?)

As the engine will almost be flat out, wind / temperature / road surface all come into play so you may not even recognise the difference. Probably not worth spending the USD100 on the replacement cogs. Saving up for a barrel / piston change is a better solution if you want more power. I see a german site is offering a 150cc barrel / piston with no EFI changes necessary or a 180cc but needing the injector tweaking. (See my post with the adjustable shock link).

Jeff

Fatherly comment - Size matters. If you want to go faster, buy something with a bigger engine or spend lots trying to get a few extra bhp

 

[ruckusdriver]

That's a useful site!

So the old "one up front" / "one down rear" cog tweak will make about 5mph difference at "cruise" speeds on this machine although the time to get there will be slightly longer of course (law of diminishing return?)

As the engine will almost be flat out, wind / temperature / road surface all come into play so you may not even recognise the difference. Probably not worth spending the USD100 on the replacement cogs. Saving up for a barrel / piston change is a better solution if you want more power. I see a german site is offering a 150cc barrel / piston with no EFI changes necessary or a 180cc but needing the injector tweaking. (See my post with the adjustable shock link).

Jeff

Fatherly comment - Size matters. If you want to go faster, buy something with a bigger engine or spend lots trying to get a few extra bhp

Isn't it more how you use it?

 

[jthspace]

ROTF

At least the patent on the little blue modifications expires soon so the cost of modding certain engines will drop from 25 bucks a tweak to 5 !!!!!!!

 

[WildRider81]

ROTF

At least the patent on the little blue modifications expires soon so the cost of modding certain engines will drop from 25 bucks a tweak to 5 !!!!!!!

awesome!

 

[espacef1fan]

I see lots of gearing changes coming to make the bike more stuntable.

 

[pilothaz]

Great site link. Will look at this for my sv650, even though i don't fully redline it.

 

[wlorton]

Nice!

 

[ben2go]

Keep an eye on JT Sprockets and SunStar .I'm sure they have come out with some interesting sprocket sizes for the Grom.

 

[Gornzilla]

Wow, nice site! I like all the warnings Firefox gave me to use it, but that's Java's fault for not being reliable. Sadly, there was no Monkey Wards bikes on the list and it doesn't go back far enough for most of my stuff. I like that the Norton Commando I had will barely go over the SR500 I have.