What Sprockets To Go With??? - SoFlaSportbikes.com

DaveINM · 10-23-2007, 10:41 PM

I want to get some more pull out of the Kawi. It's slow as fuck! I'm dropping a tooth in the front to a 14t. I'm thinking I should go up in the rear too. Stock is 40t. Both are 525 and I'm not all that interested in doing a 520 conversion. So should I go more than 2t up in the rear? How much top end am I gonna lose?

Tungue · 10-23-2007, 10:43 PM

You won't feel much by going 1 up. 2 up and you should feel something. Get stealth sprocket. You'll probably lose something like 10 mph top end.

DaveINM · 10-23-2007, 10:50 PM

I want to feel a lot though. I don't think I was even hitting 130 on the front straight at Homestead. I just changed the rear spring, and the bike feels really good, it's just got no power. I want to change the sprokets and give it a chance at Jennings. I was turning 1:31's on it with the old stock rear spring, so I figure with the new spring, I can probably break 1:30....and if I can get some extra power with new sprockets, I should be able to do even better.

johng · 10-23-2007, 11:10 PM

I run one down in the front and the stock 40 in the rear. I also tried one down in the front and 2 up in the rear at Jennings, and I think it was too much. The next trip there, I am going to switch during the day and compare times.

Tungue · 10-23-2007, 11:28 PM

What speeds\gear are you hitting on the back stretch at Jennings?

DaveINM · 10-23-2007, 11:40 PM

Quote:

Originally Posted by Tungue

What speeds\gear are you hitting on the back stretch at Jennings?

4th....maybe 5th....130-140, but I'm really just guessing.

Mike1000rr · 10-24-2007, 09:48 AM

Stock on my bike is 16/42. Right now on the street Im running 16/43 but for Homestead Im going to change to 15/43. Should be a nice increase in pulling harder and also still obtaining top end. Also have a 1000 though!

johng · 10-24-2007, 09:51 AM

Quote:

Originally Posted by Tungue

What speeds\gear are you hitting on the back stretch at Jennings?

I have heard that you should be hitting the top of your highest gear at the end of the longest straight. Is this true? With one down in front and 2 up in the back at Jennings, I do get to sixth on the back, but it doesn't seem to help with over all lap times. I really want to compare -1/40 to -1/+2 back to back to see if my seat of the pants dyno is calibrated correctly.

DaveINM · 10-24-2007, 09:58 AM

Quote:

Originally Posted by johng

I have heard that you should be hitting the top of your highest gear at the end of the longest straight. Is this true? With one down in front and 2 up in the back at Jennings, I do get to sixth on the back, but it doesn't seem to help with over all lap times. I really want to compare -1/40 to -1/+2 back to back to see if my seat of the pants dyno is calibrated correctly.

I feel the same way. I don't think the top speed is really taking that much away. I want more pull out of the turns, and more power to pass people on the straights. It's very frustrating to pass a lesser rider in a turn, only to have them come back around you in the straights. I may just go -1t in the front right now cause I know I won't need a new chain.

johng · 10-24-2007, 10:08 AM

I found a great article about it, but I may be too dumb to completely use all the info.

Gearing 101

10-23-2007, 10:41 PM	#1
DaveINM www.badasscustomdecals.com - www.dalidecals.com Join Date: Sep 2006 Location: FL Posts: 1,694	What Sprockets To Go With??? I want to get some more pull out of the Kawi. It's slow as fuck! I'm dropping a tooth in the front to a 14t. I'm thinking I should go up in the rear too. Stock is 40t. Both are 525 and I'm not all that interested in doing a 520 conversion. So should I go more than 2t up in the rear? How much top end am I gonna lose? __________________ www.badasscustomdecals.com - www.dalidecals.com

10-23-2007, 10:43 PM	#2
Tungue The Original Asian Sensation Join Date: Jul 2006 Location: Pembroke Pines, FL Posts: 5,862	Re: What Sprockets To Go With??? You won't feel much by going 1 up. 2 up and you should feel something. Get stealth sprocket. You'll probably lose something like 10 mph top end. __________________ "Life Without Risk Is Like No Life At All" '01 Black/Silver GSXR 1000 '02 Yellow/Black GSXR 750 '00 Yellow/Black GSXR 750 (R.I.P.) '00 Yellow/Black F4 (R.I.P.) '88 Red/White/Blue Hurricane (R.I.P.) TOWING SERVICES AVAILABLE Bikes Towed: - Honda: 954, RC51 - Kawasaki: ZX9 - Suzuki: '95 Intruder, '06 GSXR1000 P.S. These bikes were towed using my GSXR 750 http://www.myspace.com/tungue

10-23-2007, 10:50 PM	#3
DaveINM www.badasscustomdecals.com - www.dalidecals.com Join Date: Sep 2006 Location: FL Posts: 1,694	Re: What Sprockets To Go With??? I want to feel a lot though. I don't think I was even hitting 130 on the front straight at Homestead. I just changed the rear spring, and the bike feels really good, it's just got no power. I want to change the sprokets and give it a chance at Jennings. I was turning 1:31's on it with the old stock rear spring, so I figure with the new spring, I can probably break 1:30....and if I can get some extra power with new sprockets, I should be able to do even better. __________________ www.badasscustomdecals.com - www.dalidecals.com

10-23-2007, 11:10 PM	#4
johng Primary Target! Join Date: Sep 2006 Location: miramar Posts: 3,370	Re: What Sprockets To Go With??? I run one down in the front and the stock 40 in the rear. I also tried one down in the front and 2 up in the rear at Jennings, and I think it was too much. The next trip there, I am going to switch during the day and compare times. __________________ Screwface Racing CCS 187 Sponsors: http://www.racinglinez.com/ http://www.sportbikedecals.com/ Q Ball Customs http://www.myspace.com/qballcustoms

10-23-2007, 11:28 PM	#5
Tungue The Original Asian Sensation Join Date: Jul 2006 Location: Pembroke Pines, FL Posts: 5,862	Re: What Sprockets To Go With??? What speeds\gear are you hitting on the back stretch at Jennings? __________________ "Life Without Risk Is Like No Life At All" '01 Black/Silver GSXR 1000 '02 Yellow/Black GSXR 750 '00 Yellow/Black GSXR 750 (R.I.P.) '00 Yellow/Black F4 (R.I.P.) '88 Red/White/Blue Hurricane (R.I.P.) TOWING SERVICES AVAILABLE Bikes Towed: - Honda: 954, RC51 - Kawasaki: ZX9 - Suzuki: '95 Intruder, '06 GSXR1000 P.S. These bikes were towed using my GSXR 750 http://www.myspace.com/tungue

10-24-2007, 09:48 AM	#7
Mike1000rr [[-]] (()) [[\]] [[)) //-\\ Join Date: Oct 2006 Location: East Side Posts: 15,917	Re: What Sprockets To Go With??? Stock on my bike is 16/42. Right now on the street Im running 16/43 but for Homestead Im going to change to 15/43. Should be a nice increase in pulling harder and also still obtaining top end. Also have a 1000 though! __________________

10-24-2007, 10:08 AM	#10
johng Primary Target! Join Date: Sep 2006 Location: miramar Posts: 3,370	Re: What Sprockets To Go With??? I found a great article about it, but I may be too dumb to completely use all the info. Gearing 101 __________________ Screwface Racing CCS 187 Sponsors: http://www.racinglinez.com/ http://www.sportbikedecals.com/ Q Ball Customs http://www.myspace.com/qballcustoms