Transmission gear ratio changes - ZX Forums
 
LinkBack Thread Tools
post #1 of 8 (permalink) Old 06-29-2009, 09:04 AM Thread Starter
Senior Member
 
Crazyninja's Avatar
 
Joined: Jul 2008
From: Hills of west virginia
I Ride: '08 ZX6R

Posts: 1,061
Transmission gear ratio changes

Can a local shop change my individual transmission gear changes if i got aftermarket ratios?

I was thinking about going -1/+2 sprockets but having 6 gear changed to lower my highway rpms back to stock rpm levels. It would be kind of like "overdrive".
I know it would be a big step from 5 th to 6 th but i am not concered

2011 ZX10-R (stock), 2008 zx6r (all the mods).
Crazyninja is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 06-29-2009, 09:10 AM
 
Joined: Nov 2008

Posts: 680
Dude, that's a great idea. I'd be curious to know how much that sort of thing would cost. I doubt the 5th to 6th jump would even be that bad.
On1Wheel is offline  
post #3 of 8 (permalink) Old 06-29-2009, 09:46 AM
Senior Member
 
Kawi_T's Avatar
 
Joined: Apr 2007
From: Chicago
I Ride: 2001 ZX12R

Posts: 683
I don't know about local shops, but trans specialty shops can. My brother has a built KZ1000 with an MRE transmission. It has aftermarket gears with a taller 1st and 5th gears (KZ's are 5 speeds).

Quote from a Kaw mechanic (my dad)
"Great idea, buy your kid a ninja for his last birthday."
Kawi_T is offline  
post #4 of 8 (permalink) Old 06-29-2009, 10:24 AM Thread Starter
Senior Member
 
Crazyninja's Avatar
 
Joined: Jul 2008
From: Hills of west virginia
I Ride: '08 ZX6R

Posts: 1,061
I read that these cassette transmissions are supposed to be "easy"!gear ratio changes.
I think it would be fun to gear down the sprockets and still be able to cruise easy in 6 th.
That way i wouldnt be killing the engine on trips at 90 mph but could still get the attention of some liter bikes red light to redlight. LOL

2011 ZX10-R (stock), 2008 zx6r (all the mods).
Crazyninja is offline  
post #5 of 8 (permalink) Old 06-29-2009, 04:12 PM
Senior Member
 
-Op-'s Avatar
 
Joined: May 2009
From: SoCal
I Ride: '05 ZX6R

Posts: 517
how much would you figure it would cost to get this done??

2k5 Plasma Blue 636
Mods:
-1 Front Sprocket.
FE Kit, with a touch of DIY
K&N Air Filter - Installed
EBC Gold Sintered HH Front Brakes - Breaking-in
-Op- is offline  
post #6 of 8 (permalink) Old 06-29-2009, 08:21 PM Thread Starter
Senior Member
 
Crazyninja's Avatar
 
Joined: Jul 2008
From: Hills of west virginia
I Ride: '08 ZX6R

Posts: 1,061
I'm going to check and post back

2011 ZX10-R (stock), 2008 zx6r (all the mods).
Crazyninja is offline  
post #7 of 8 (permalink) Old 06-29-2009, 09:14 PM
Senior Member
 
Hammerhead's Avatar
 
Joined: Mar 2008
From: Southern Illinois
I Ride: '07 ZX-14

Posts: 12,962
Quote:
Originally Posted by Crazyninja View Post
I read that these cassette transmissions are supposed to be "easy"!gear ratio changes.
I think it would be fun to gear down the sprockets and still be able to cruise easy in 6 th.
That way i wouldnt be killing the engine on trips at 90 mph but could still get the attention of some liter bikes red light to redlight. LOL
A cassette gearbox involves an inner cover that is integral with the gear shafts so when you remove it, instead of having to unbolt something on the opposite side to free up the gear shafts, the whole works pulls out as a unit. Not something you can just add to your motor. Major re-engineering would be involved.

It may be a pig, but it's a pig with a rocket in it's ass!
Hammerhead is offline  
post #8 of 8 (permalink) Old 06-29-2009, 09:16 PM
Senior Member
 
Hammerhead's Avatar
 
Joined: Mar 2008
From: Southern Illinois
I Ride: '07 ZX-14

Posts: 12,962
Quote:
Originally Posted by Kawi_T View Post
I don't know about local shops, but trans specialty shops can. My brother has a built KZ1000 with an MRE transmission. It has aftermarket gears with a taller 1st and 5th gears (KZ's are 5 speeds).
Since air-cooled KZs were raced for many years, there are some aftermarket gears available. If they are not available for your application, you would have to have them custom-cut. Expen$ive, to say the least.

It may be a pig, but it's a pig with a rocket in it's ass!
Hammerhead is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the ZX 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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


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

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Transmission gearing ratio's msdosp1mp ZX-7R Forum 5 11-12-2013 03:00 PM
zxr 750 h2 gear ratio hy-rolla Mechanical & Technical 0 12-07-2010 05:28 PM
Sprocket/gear ratio help atvmx_freak08 ZX-6R Forum 10 11-18-2010 10:37 PM
Gear ratio Vetteman761 ZX-11 Forum 6 09-08-2007 12:34 AM

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 Off
Pingbacks are Off
Refbacks are On

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