bobmanR6

I just picked up an 04 636. Ive always ran litter bikes on the highway for the most part. No that I have this bike Im wanting to gear it for parking lot and highway both...I need to know what a good commn geraing is that will work for both of them...the bike is stock right now, and I cant remeber how many teeth are on it that way...I was wondering if going up 6-8 teeth in the rear would be enough for the lot, but too much for the highway...Whats some of your suggestion to get good results out of both?

DIRTYJEFF636s

i think it's 40 teeth stock. i have a +56 and i think i'm going to get a +50 (10 up)

bobmanR6

ya im not sure either, but Im not sure on what to get for highway and parking lot either. ive always had mid geared 954's and 1000's...trying to make the transition.

jebova2301

i would think 6-8 should be fine. if you want to see how many more revs you will be turning out, take your bike on the highway, get it up to speed and take note of how many revs youre turning. now take your current gearing(mine is 16/48 stock) and calculate that [3], and then take what you will be going to use and calculate it. now divide the new ratio by the the old one (new/current). that should give you a 1.### take that number times how many revs you were turning out, and it will give you an idea of how many you will be turning out after you go to the new gearing.

if you want, tell me the current gearing, rpms, and what the new gearing would be and i will do the math for you.

1: divide current rear tooth by front tooth=num1
2: divide new rear tooth by front tooth=num2
3: divide num2 by num1(num2/num1)=num3
4: multiply the revs at a known speed on current gearing by num3=new rev amount at that speed

hope that helps

chadnine

i run a 50 tooth rear and stock front, but a buddy of mine runs the same set up on the street and he says its perfect

badyama1

+10 is perfect so a 50 is what you want our bikes chug pretty good anyway you can circle them easily with stock gearing with a high idle but everyone i ride with runs a 50 and down 1 front me personaly i run a 56rear but it stays in the lot except for the streetrides .

chovy636

it is a 40 tooth

apfire26

50 is good for both.

dan636

i got + 12 in the back perfect for lots and street a little high for highway.

mofat01

-1 +10..butter

NOTORIOUS1

yep thats what i had on mine when i bought it. it was a lot better for the highway. still good for the lot though.

-SKETCHY-

I ran +6 on my 03' and it was greeeeat!

matth

43 is stock 50 and 1 down front is goooood

bobmanR6

Sweet! thats what I will try then!!! Thats about the feed back im getting from most people...Thanks for all the help.

Greg Mcglynn

I had a 50 tooth,+10 and didn't like it on the highway. It vibrated my throttle hand too much.


I went down to 45 teeth, +5 from stock. Stock front sprocket.

love it for lots and street.

It would be nice to have a little more gear in the lot but I would rather be able to go fast.

JoeS5690

i say don't go more than +8 for the highway, mine is +6 and to me it seems like a good compromise for all

ANDREW G.

+1 i have +10 on my 04 636 my bike and it tops out at about130 but its still good for the lot

DIRTYJEFF636s

sweet i'm getting that 52 tooth . 56 is too twitch for a newb (stunting) like me..lol

GYNXxx

Isnt stock rear 43 teeth ??? Nothing comes with a 40

DIRTYJEFF636s

I heard 40 but i pretty sure i'm wrong so a 52 will be up 9