43 tooth rear sprocket

[ebenviljoen]

Hi chaps,

Just for interrest sake, what is the difference in speedo reading when fitting a storm with a 43tooth rear sprocket, Leaving the front standard?

[suburban guerrlla]

43 tooth is 2 extra. Therefore 2/41 roughly 5% over reading of speedo as this reads from front sprocket

[slower110]

Any help? http://www.gearingcommander.com/

Recently had a speedo healer fitted to mine after gearing changes, handy little thing it is

[mik_str]

http://www.superhawkforum.com/forums/kn ... eet-10654/

[bigtwinthing]

with a 43 tooth sprocket at 70mph its says 74mph and at 90mph it says 95mph so not too bad, well worth the mod i think, drive out of bends is far better. You may lose 8mph top end!!!

[8541Hawk]

with a 43 tooth sprocket at 70mph its says 74mph and at 90mph it says 95mph so not too bad, well worth the mod i think, drive out of bends is far better. You may lose 8mph top end!!!

Personally the biggest drawback to the 43 tooth rear sprocket is how it takes weight off of the front wheel.
So while you might get a little extra perceived punch the chassis geometry changes will make the bike less stable and you will loose front end "feel"

Just remember every change is a trade off and there are negative aspects to a lot of changes (if not all) that are not thought about.

So while the lower gearing can work ok, I ran it for many years, the trade offs just were not worth it for me and I have gone back to stock gearing with very good results.

[ebenviljoen]

thanks all, much appreciated.

Probably good that it reads a little faster than what it is, im always a little over 70 anyhoo! lol, don't mind about the top speed though, never even considerred going that fast. I do like the idea of the bike being wheelie happy!

[bigtwinthing]

thanks all, much appreciated.

Probably good that it reads a little faster than what it is, im always a little over 70 anyhoo! lol, don't mind about the top speed though, never even considerred going that fast. I do like the idea of the bike being wheelie happy!

its a blast coming out of bends i can do great 2 foot wheelies for about 1/2 mile just off the thottle.

[ebenviljoen]

thanks all, much appreciated.

Probably good that it reads a little faster than what it is, im always a little over 70 anyhoo! lol, don't mind about the top speed though, never even considerred going that fast. I do like the idea of the bike being wheelie happy!

its a blast coming out of bends i can do great 2 foot wheelies for about 1/2 mile just off the thottle.

nice, ive got one now, just need to fit it.

[bigtwinthing]

thanks all, much appreciated.

Probably good that it reads a little faster than what it is, im always a little over 70 anyhoo! lol, don't mind about the top speed though, never even considerred going that fast. I do like the idea of the bike being wheelie happy!

its a blast coming out of bends i can do great 2 foot wheelies for about 1/2 mile just off the thottle.

nice, ive got one now, just need to fit it.

My mates is standard and off the lights i do have to hang over the tank a bit but it is noticably quicker and like you said i dont miss 10mph off the top end. best cheap mod for a bit of extra grunt in my book!

[gabi81]

as far as im aware changing gear ratio reduces rear tyre life by 10% as u get more grunt and u put more pressure on it
fun for a while but painful on the wallet (unless u win the lottery) u can pop wheelys on standard gearing too and the bike feels alive
if for whatever reason u decide to change ratio change go -1+2 to balance it a bit
but thats my opinion u dont have to listen

[bigtwinthing]

as far as im aware changing gear ratio reduces rear tyre life by 10% as u get more grunt and u put more pressure on it
fun for a while but painful on the wallet (unless u win the lottery) u can pop wheelys on standard gearing too and the bike feels alive
if for whatever reason u decide to change ratio change go -1+2 to balance it a bit
but thats my opinion u dont have to listen

bloody hell i bet thats hard not to wheelie isnt it!, and regarding tyre life your probablty right,but i get through 2 rears and a front each year as a rule!

[koko]

15/42 is my combination. which I find a good compromise.

[gabi81]

I've been running -1+2 on all my previous bikes and it was all fine they didn't feel wheely happy unless I wanted them too

[tony.mon]

Leave gearing alone and tune engine for 10% more power, then it feels as lively but the speedo reads accurately.

I don';t follow my own advice, of course, mine is running a 15 tooth front and std rear.
Never a prob with chain life as I run a scotoiler