Sprocket questions - Yamaha R6 Forum: YZF-R6 Forums
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 04-11-2012, 04:49 PM Thread Starter
Just made this great wheelie.. did you see it?!
Join Date: Jul 2005
Posts: 93
Sprocket questions

So i have a 2006 R6 thats a dedicated track bike. I'm not really looking to dump tons of money into it in terms of horespower upgrades and such, so I was thinking about tweeking the sprockets a little. I know some guys say that a huge boost in acceleration can be gotten from doing the 520 conversion and a -1/+2. I heard it gets a bit punchy with that much of a change however. So heres my question..... Theres some inexpensive oem sprockets ( oem 525 pitch ) out there that i can expreiment with without going the full route of a 520 conversion. Would i get a little more pep out of the corners without changing it too much if I go with.....

1) Just a +1 on the rear ?

2) Just a +2 on the rear ?

3) Just a -1 up front?


standman4320 is offline  
Sponsored Links
post #2 of 7 (permalink) Old 04-11-2012, 05:32 PM
I named my dog Rossi.
Join Date: Feb 2011
Location: At or between 1st and 6th
Posts: 294
Bike: 05 R6
Re: Sprocket questions

I did 520 -1 Front and I think it's a great compromise. You don't lose much on the freeway, but the acceleration gain is noticeable.
GoTime is offline  
post #3 of 7 (permalink) Old 04-12-2012, 06:22 AM
I eat my R6
Join Date: Sep 2011
Posts: 108
Bike: 07 R6
Re: Sprocket questions

Just ran my first day on -1/+1. It makes a big difference in punch.

I was getting a fair amount of rear slides until I adjusted how I was cracking on the throttle. With the stock gearing I could be hamfisted in a lot of spots and not have trouble.

Before around 135 the bike really struggled to keep pulling and felt soggy, now it punches up to 140 and will pull in 6th, which I never needed in the past.

I'd say -1 on the front. That puts the top end about 160 which is closer to reality than the 170 it is geared for stock.
narve00 is offline  
post #4 of 7 (permalink) Old 04-12-2012, 06:30 AM
dubhugger's Avatar
Join Date: Jan 2012
Location: Tuscaloosa, AL
Posts: 1,120
Bike: 03 R6
Re: Sprocket questions

the problem with going up in the rear is that you add rotational mass (weight) the problem with going too small in the front is increased chain drag as well as chain is more likely to bind around a smaller sprocket. I've heard several stunter buddies run -2 in the front on 2nd gens with a 532 chain so I would imagine you could run the same set up on a 520 chain as long as it's a quality, well lubed chain. The idea is getting the lower gearing without adding the weight of the rear sprocket. However if you go aluminum in the rear weight is going to be minimal. I personally run -1/+1 & -1/+2 depending on the situation and I find the -1/+1 combo more street friendly but the -1/+2 is more fun on the back roads, especially when the other guys running 600cc bikes are wondering why they can't keep up.

dubhugger is offline  
post #5 of 7 (permalink) Old 04-12-2012, 07:18 AM
Original Member-Vendor

Agg2001's Avatar
Join Date: Jun 2008
Location: www.AggRacing.com, TX-USA
Posts: 30,470
Bike: 2007 R6, 2005 CRF250r
Send a message via AIM to Agg2001 Send a message via MSN to Agg2001 Send a message via Yahoo to Agg2001
Re: Sprocket questions

-1/+1 is what's on my track bike. not a bad compromise.
To view links or images in this forum your post count must be 5 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

High-end, AFFORDABLE, parts and accessories for your bike!

ALWAYS free shipping to the USA, with 1-3 day delivery times.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Agg2001 is offline  
post #6 of 7 (permalink) Old 04-12-2012, 11:08 AM
I eat my R6
Rocky5000100's Avatar
Join Date: Mar 2012
Location: Southeast Wisconsin
Posts: 1,877
Bike: 2003 Track SV650, 05 R6
Re: Sprocket questions

I've got just a +2 on the rear (previous owner did it) but I do like the gain in acceleration compared to the stock gear I test drove one time.
Rocky5000100 is offline  
post #7 of 7 (permalink) Old 04-12-2012, 11:45 AM
Voices Its these voices..
Mouse's Avatar
Join Date: Jun 2010
Location: Aurora, IL
Posts: 71
Bike: 08 R6 / 09 R6
Re: Sprocket questions

For playing around on the cheap, -1 in the front might allow you to keep the same chain. If you went bigger in the rear, depending on the chain length and slack, it might be too tight. Also front sprockets are cheap.

Really changing sprockets for the track is so you have the right gearing to stay in the right power band. So for a small tight track, I might have 15f/46r. Or a long track I might use close to the stock setup. If I'm hitting the rev limiter in 3rd on a short straight, but grabbing a quick 4th then and back down is actually going to cost me time.... I might try 1 tooth down in the back. Then again, that might throw off my drive somewhere else on the track. You just have to find what makes you faster.
Mouse is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Yamaha R6 Forum: YZF-R6 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Chain and Sprocket Questions... $someday$ Garage / Mechanical Help 5 07-27-2009 07:08 PM
Since there's been so many chain/sprocket questions Owen_R6 General Discussions 0 10-11-2008 01:12 PM
Sprocket Questions SavannahRavenR6 Garage / Mechanical Help 1 06-29-2008 09:24 PM
Sprocket Questions? R6KIDD General Discussions 15 01-03-2006 10:53 PM
Sprocket questions. raydogg920 General Discussions 11 08-14-2004 01:08 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome