[jblaze]

Ok, I know majority of the people on the site goes 1 down on the front sprocket. Then some do 1 down then 2 or 3 up in the rear. So my question is..........

Could I do -2 in the front (15t) so it would be basically be like doing -1 front, +3 rear. Since the theory is going -1 is like going 3 up in the rear. Pro's and con's? Idea's and thoughts?


Thanks.
jb

 

[abzx10r]

I'm running a 15tooth right now, bike tops out at 168mph but its a freaking beast tell then, wheel doesnt touch the ground tell 4th gear if I'm on it full throtle. So you know when dropping one tooth in the front its equal to about 2.8-3 teeth, when dropping 2 in the front its 5-5.5 so you will notice a fast difference between a 16t and 15t, if you do this I would say go back to the stock rear sprocket, dont pick up any more teeth ect in the rear, or you will be topping out around 165mph and doing a wheelie the hole time, in less its stretch and lowered

 

[jblaze]

I'm pretty much trying to do the swap without having to get a new chain for going -1, +2 so I figured I'd go -2 in the front.

 

[abzx10r]

Its the same, only thing if you just change your front sprocket and not the other/chain too, its going to wear down a little faster then normal, but yeah just drop -2 up front and your good, theres no need to change the rear in less your really taking it out to the strip or something with -2 up front

 

[coolgjc]

there was a thread on here talking about the -2 wearing the chain a little faster due to the bind that it puts on the chain as it travels around the front sprocket. it's just what i read on here somewhere. my chain was toast so i replaced all.

 

[abzx10r]

yeah just like I said wearing on the chain will happen much faster with this setup

 

[jblaze]

A little faster meaning? I know what it means, but like, what is the normal milage out of the chain with -1 front in comparison of -2? So let's say with -1 you get 8k miles, then with -2 you get 7k miles.

Anyone have any hard numbers?

 

[abzx10r]

I only have 1000 miles so far at this setup 15/41 and I cant even tell the differnce in the wear yet, but with my 08 honda geared low like this, my chain lasted 12000 miles so. Its all about are you lubbing your chain and ect. But with this you will def. need a speedo healer bad if you dont already.

 

[06wreckedzx10]

So -2 is gps 168mph, meaning bouncing off the limiter in 6th? Interesting if so

 

[abzx10r]

on my gps unit with my gearing at 15/42 its 168mph hitting the limiter in 6th, now with my stock rear back on yesterday morning after putting it on I pulled 174. something on my gps. My bike stock gearing with all the mods I have tops out at 187mph on gps, trust me gearing your bike down yes it will get you there a lot faster but kills your top end in the end. 15/42 is great for the strip.

 

[06wreckedzx10]

Good informative post, thats amazing going only 1 up in the rear allows 6 more mph... so with your current gearing you have to short shift up to 3rd gear to keep the wheel down? That kinda sucks but i guess its all about the feel of the pull....ccasion1

whats your mods/weight? TIA

 

[abzx10r]

mods= Custom made headers into a level one slip on, tre, secondarys gone,air filter,sprocket changed,pcV, speedohealer, a couple cosmetic things like windscreen, solo cowl ect. I only weigh 145 pounds right now, I'm a runner so do the math. But naw when I run my strip gearing basically which for me I run the 15/42 and strapped I just let it ride full throtle, The wheel basically (1st)comes up touchs down, (2nd)comes up touchs down, comes up just enough for the bars to shake a little, then by 4th its just a little light up front. Heck I did a +2/-1 and pulled 192-194mph on my gps haha. The last time I ran my bike on a dyno for its tune with all the stuff done this far it hit 169hp which before I removed the secondary I only pulled a 167hp. Its a fast bike man, my 08 honda only had 158 to the wheel which compared to this bike sucks

but my 09 zx10r is far from being done...more to come, I want 180hp+ on this bike

 

[jblaze]

Decisions decisions, I almost closed a deal on a 04 for 5100 and I was planning on putting -2 in the front, so I go searching around and see an 08 with 1300 miles that's 200 miles away from me for 1k more...what to do what to do?

 

[abzx10r]

are you kidding me I'd go with the 08, it will hold its value longer just in the sense that the 04 is already 5 years old. I know at a point a bike cant lose anymore value but with that 04 its only going to go down, at least the 08 will be ahead in the race if you ever want to sell it. Regardless I know the 04 is a beast but I have beat a couple first gens, seoncd gens, and even 2 3rd gens, one being a super close friend of mine. He hates it cause he can never beat me and he has a left over 08 blue and I have the 09 meaning there the same. He just cant launch all that well lol. What are you trying to make a bike just for the strip or something?

If you dont own a 3rd gen zx10r you will totally be blown away with the bike.

 

[wildcats]

i dont think a chain is expensive enough that it matters if ur gettin 8k out of it. why not just got 16 and 44 just adjust the chain u shouldnt need a new one then again ive never done it.

 

[abzx10r]

16/44 is a lot of teeth there buddy, I dont think I could ride around town with that gearing, only at the strip...stock gearing on a 09 zx10r is 17/41 so 16/44 is 6/7 teeth easy. That would be a wheelie machine in less lowered and strapped

 

[abzx10r]

yes...your right on the gearing, they have gotten taller since the first gens. meaning a longer gearing basically, so 1st is really long LOL. Bets me you know, well oh I will say this though; when you are fabbing a bike like the first gen. a lot comes in to play, they are getting taller over the years due to the fact there working out kinks ect or trying to. Hard to explain!! You learn from mistakes, people,racing teams, everyone.

 

[abzx10r]

I truthfully cant explain in detail to why its better for the first reason I have never owned one, I have riden a couple my close friend just got a left over 08 blue model and traded in his 04, all he goes on about is about how well it handles and how the power delivery is so much smoother along with the bike feels a lot more planted or stable. Its like comparing a ferri to a lamborghini they both are great but different. I will say that are gauges are so much nicer then the first gens...His wheel did tend to come up a lot more with his 04 though...its not above and behond in any sense, its just a lot more refined in the sense

 

[JLAudio11]

I'm running -2, stock rear. With the bike lowered and strapped it still wants to come up at the end of 1st & gets lite through 2nd. As far as chain wear/bind, I think it's only when you get down to a 14t that it get's hard on stuff ie; countershaft, chain, sprockets.

 

[Ki_Power]

So, If I wanted to add just abit more power...and mind you, I'm not looking to wheelie all day, nor do I go to the track (yet). But, If I just wanted the "next Step" Up from stock to have an edge on the others...what would that be as far as the changing of sprockets? Would it be just a 16T in the front, a 520 conv?

Also, when you do any of these sprocket changes, do you need he bike re-tuned or mapped?

Thanks!

Liam