Gearing, speed, and the like - Page 3 - Yamaha Raptor Forum
LinkBack Thread Tools Display Modes
post #21 of 147 (permalink) Old 05-11-2007, 02:35 AM
Senior Member
DECEPTiON21's Avatar
Join Date: Dec 2006
Posts: 2,786
Send a message via AIM to DECEPTiON21
Re: Gearing, speed, and the like

Originally Posted by stumper
My 05 with stock gearing , 22 inch rears, fmf slip on was clocked at 81 by the south dakota hiway patrol.This was after a 5 mile WFO run .I have GPS'd it at 78mph. Funny thing is When it still had the stock tires on it, I gps'd it at 77 So I am guessing it is just maxed out on power with the taller tires and Im not on the limiter?
You are probably not on the rev limiter, or near it. If you want more top speed, run 15t front and 39 rear. I don't have much use for top speed where i ride so i run stock gearing or a 12/40, depending on my plans that day.

For those of you worried about throwing a rod - the OEM aren't prone to defects, but if you are always on your rev limiter and are constantly at the redline, you run a greater risk of throwing a rod than someone who knows when to shift. You shouldn't be on the rev limiter. Period, it's time to shift or let off the throttle.

05 660r<br />&nbsp;&nbsp;Houser +2, Elkas, Pro-Design, CT Racing, Tusk, AC Propeg, Motion-Pro<br /><br />06 2500 CTD Ram Auto on Rockstars and Nitto TGs, faster than Samrambo&#039;s cars.
DECEPTiON21 is offline  
Sponsored Links
post #22 of 147 (permalink) Old 05-11-2007, 09:54 PM
Join Date: Mar 2007
Posts: 64
Re: Gearing, speed, and the like

Has anybody seen a chart for what gearing to be used for different types of riding? Which is best for hills, or trails, or track etc.

I understand this is subjective to a lot of variables, but i am just curious if any such list exists.

ursuaja is offline  
post #23 of 147 (permalink) Old 09-07-2007, 12:00 AM
Join Date: Apr 2007
Posts: 2,474
Re: Gearing, speed, and the like

Reawakening a sleeping Giant...............

But is there a Link to find out a YfZ's Gearing?

I Am Curious but my buddys just built a track and they are claiming a 4th Gear Tapped jump (all on YFZ's) And I Disagree i think i would miss the landing if i hit the Jump 4th gear tapped
So In other words i am wondering who has taller gears
A Calculator like in the original Post....
Hammo686 is offline  
post #24 of 147 (permalink) Old 09-13-2007, 10:53 PM
Join Date: Sep 2007
Posts: 243
Re: Gearing, speed, and the like

so if i put a 15tooth on front and 39 on rear i can do 91 mph on my stock bike? thats what the calculator says anyways?
660raptor660 is offline  
post #25 of 147 (permalink) Old 09-14-2007, 10:22 PM
Senior Member
russ's Avatar
Join Date: Aug 2006
Location: Grand Junction, Colorado
Posts: 1,637
Re: Gearing, speed, and the like

Mathematically yes, but you have to have the power to pull that gearing. That's where the gearing calculator falls short. If your bike has the power to hit redline in 5th gear, you can go that fast, more likely, you will just be unhappy at how slowly your bike accelerates.

'06 Raptor 700R SE - PCIII, FCI intake, Monster duals, Dynatek ignition, Kenny's +2 TB and evac valve, HotCam 3, 11:1 brick and Bo's track porting, Precision Stabilizer, i5500LT and ishock revalved rear, RPM Dominator 2 axle
russ is offline  
post #26 of 147 (permalink) Old 09-15-2007, 12:14 AM
Senior Member
vermin99's Avatar
Join Date: Feb 2007
Posts: 1,694
Re: Gearing, speed, and the like

Just as a side note gearing can also be changed with tire size also. Since I ride both open desert and dunes I am going to stay stock gearing. Paddles are stock size and am going with a 22" rear tire.

Blue 2006 Yamaha Raptor 700
FuelATV Intake
HMF exhaust
I Shock 5500 kit
Precision Concepts rebuilt rear shock
vermin99 is offline  
post #27 of 147 (permalink) Old 10-06-2007, 10:37 AM
Senior Member
RaptorDuner's Avatar
Join Date: Sep 2007
Location: Randle WA
Posts: 892
Re: Gearing, speed, and the like

I switched to 12/42 with 22" haulers and still had a slight bog in 5th on flat ground. The over rev box was only helpful climbing out of sucker holes.

'07 Blue
Barker's, PC III, K&N, Shockcovers, Twist Throttle, 22" 8 Paddle Haulers
'07 Black w/Red Frame
Barker's, PCV, Vapor, Rezzis, ProTaper, Odi, 22" 10 Paddle Haulers
2002 Banshee
CPI, +4, Keihins, Vforce 3, A little motor work, 20" 8 Paddle Extremes
2004 DVX 400, Junk Geckos
2014 SandSport 275FBSL 34' Toyhauler
2007 Silverado Duramax/Allison 2500 Crew 4wd
RaptorDuner is offline  
post #28 of 147 (permalink) Old 11-09-2007, 08:01 PM
Junior Member
Join Date: Sep 2006
Posts: 21
Re: Gearing, speed, and the like

Here is something to think about. The Raptor stock motor with the stock cam will roll over on the power at about 6250rpm. When you rev past that you are not making power, only over revving the motor. If you put in a stage I hot cam the peak hp will roll over at around 7100rpm. The hot cam stage II rolls over around 8100rpm. If you are in 5th gear and stock gearing on a stock motor you will not be able to come close to the rev limiter set in the cdi @ 9200rpm. You will start to float valves and the motor will sound like you are on the rev limiter but you are not. A stock motor will not pull to the rev limiter in 5th gear. If you go to 14/40 gearing on a stock motor you will loose top end speed because the stock motor will not put the taller gearing, what I am saying is with stock size tires too. In order to hit higher top end speeds of any significance the motor with need to be built. Here is a speed chart site that you can enter tire size, gearing and year of the Raptor which has the primary gear ratio to get calculated speeds. This chart does not take in consideration wind resistance or clutch slippage. The years go from 01 and the 02 and up to 05 even though 05 is not in the list because it is an old site.
Have fun.

Craycraft Racing
raptorrrc is offline  
post #29 of 147 (permalink) Old 01-14-2008, 10:46 AM
Join Date: May 2007
Posts: 35
Re: Gearing, speed, and the like

I have a 02 raptor with a 11:1 high compression piston, stage 2 hot cams, k&n air filter and a dg stage 3 exhaust. i mostly go woods riding/trail riding and i ride on the road a lot. Any suggestion on what gearing i should be running?
Justinwho is offline  
post #30 of 147 (permalink) Old 01-14-2008, 10:51 AM
Join Date: Apr 2007
Posts: 2,474
Re: Gearing, speed, and the like

or even 15-40

hell even try 14-38

Lookin for more Speed that is the direction i would go
Hammo686 is offline  

Quick Reply

Register Now

In order to be able to post messages on the Yamaha Raptor Forum 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:


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
Gearing for Speed fullthrottle03 Raptor 660 Modifications 2 06-28-2008 11:22 AM
Speed of Light VS Speed of Electricity AManOfGod Off-Topic Lounge 1 02-09-2008 02:37 PM
Top speed limiter? Speed sensor? prorac1 Raptor 660 Modifications 9 12-16-2007 03:57 PM
Top end speed and cruising speed of the Raptor M-14 GUY Raptor 700 Discussion 10 10-23-2007 02:57 PM
High speed wobble, Low speed bike pulls to the right? rikirappy Raptor 700 Suspension 5 12-14-2006 11:27 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