Shopping for a better rear shock - ZX6R Forum
 10Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 25 Old 11-29-2019, 02:14 PM Thread Starter
Post Master General
 
RJ2112's Avatar
 
Join Date: Apr 2012
Location: Bowling Green, VA
Posts: 12,167

I Ride: '09 ZX6R
Garage
Shopping for a better rear shock

I've told my darling wife that the $57 OEM '13+ used shock I bought as a band aid is nearing it's end of useful life and that I wanted to replace with a new aftermarket shock.

We're budgeting ~$400. If you are able to point me at what my options are at that price point, and give a recommendation as to why you'd go a particular way it would be appreciated.

I have my OEM '09 shock, as well as that somewhat tired '13+ unit. I'm sure they aren't worth much as is.

If the '09 unit could be rebuilt for less than the cost of a new aftermarket unit, I would consider that. 45 minutes of online searching has resulted in me sending inquiries to the outfits listed below. Curious to see where this lands.

https://traxxion.com/product/oem-sho...-and-respring/

https://www.racetech.com/ProductSear...)%20Ninja/2009

Pro-Action Suspension | Motocross Suspension | Harley Shocks

"Basic stuff fellas. Use your head for something other than to break your next fall."

Words to live by
RJ2112 is online now  
Sponsored Links
Advertisement
 
post #2 of 25 Old 11-29-2019, 02:37 PM
Pro Racer
 
Newyork's Avatar
 
Join Date: Sep 2015
Location: Long Island, NY
Posts: 708

I Ride: 2012 zx6r, 2007 gsxr 750
Garage
Iíd look for a used Penske or JRI if I were you. Those could be had around that price point if you luck out.

There was a guy on here selling a JRI for $450 not too long ago if you search the classifieds maybe he still has it.


Sent from my iPhone using Tapatalk

May 2018 ZX6R of the Month
Newyork is offline  
post #3 of 25 Old 11-29-2019, 02:48 PM Thread Starter
Post Master General
 
RJ2112's Avatar
 
Join Date: Apr 2012
Location: Bowling Green, VA
Posts: 12,167

I Ride: '09 ZX6R
Garage
because the '09 OEM unit has low and high speed compression damping, I'm hoping it's worth the effort of refreshing. If I buy a used high performance racing shock, it's going to need to be re-sprung, possibly re-valved; certainly refreshed..... That $400 shock is really a $600+ shock -- still, much less than a brand new Ohlins, etc. @ $1,200+

"Basic stuff fellas. Use your head for something other than to break your next fall."

Words to live by
RJ2112 is online now  
Sponsored Links
Advertisement
 
post #4 of 25 Old 11-29-2019, 04:16 PM
Pro Racer
 
Newyork's Avatar
 
Join Date: Sep 2015
Location: Long Island, NY
Posts: 708

I Ride: 2012 zx6r, 2007 gsxr 750
Garage
You are 100% correct most used shocks will need a refresh. That said I donít know enough about re-valving the stock stuff to say whether or not that would be worth doing but it certainly will be better than not doing anything.


Sent from my iPhone using Tapatalk

May 2018 ZX6R of the Month
Newyork is offline  
post #5 of 25 Old 11-29-2019, 04:45 PM
Post Master General
 
jd41's Avatar
 
Join Date: Apr 2015
Location: Monterey, California
Posts: 5,832

I Ride: 2014 Kawasaki ZX-6R, 2013 Kawasaki Ninja 300
Garage
Quote:
Originally Posted by RJ2112 View Post
I've told my darling wife that the $57 OEM '13+ used shock I bought as a band aid is nearing it's end of useful life and that I wanted to replace with a new aftermarket shock.

We're budgeting ~$400. If you are able to point me at what my options are at that price point, and give a recommendation as to why you'd go a particular way it would be appreciated.

I have my OEM '09 shock, as well as that somewhat tired '13+ unit. I'm sure they aren't worth much as is.

If the '09 unit could be rebuilt for less than the cost of a new aftermarket unit, I would consider that. 45 minutes of online searching has resulted in me sending inquiries to the outfits listed below. Curious to see where this lands.

https://traxxion.com/product/oem-sho...-and-respring/

https://www.racetech.com/ProductSear...)%20Ninja/2009

Pro-Action Suspension | Motocross Suspension | Harley Shocks
I'll have my penske triple piggyback for sale next week after my last TD of this year. PM me if you're interested.
RJ2112 likes this.

JL99
jd41 is offline  
post #6 of 25 Old 11-29-2019, 05:11 PM Thread Starter
Post Master General
 
RJ2112's Avatar
 
Join Date: Apr 2012
Location: Bowling Green, VA
Posts: 12,167

I Ride: '09 ZX6R
Garage
The '09 shock had 12K on it when I bought the bike. The owner before me was a hefty guy, with a gf to match. I'm sure the pair was over 400 lbs, and they had the suspension near the maximum settings as a result when I got it. So stiff my teeth clattered together, my vision was blurry at any speed. By the time I got another 10K on the bike, I had backed everything off enough to call it good enough, through the next 20K before both ends started to wallow and become more and more vague.

I hadn't ever noticed any significant changes, as a result of damper adjustments. When I rebuilt the fork at ~53K, it showed me that there was no damping control (remaining) on the rear shock. Lloyd suggested a newer used OEM shock could be an improvement, and that was definitely better than what was going on with the '09, by that point. The adjustments actually had an impact on shock behavior.

It's now at the max compression and rebound, and I can tell it's starting to lose ground.

If I can rebuild that '09, I would hope to get a couple of years of decent street performance out of it. 20-30K would be highly desirable. That would put the entire bike at near 90K, and is likely to be at the point where I would have replaced it with something else.
jd41 likes this.

"Basic stuff fellas. Use your head for something other than to break your next fall."

Words to live by
RJ2112 is online now  
post #7 of 25 Old 11-29-2019, 05:17 PM Thread Starter
Post Master General
 
RJ2112's Avatar
 
Join Date: Apr 2012
Location: Bowling Green, VA
Posts: 12,167

I Ride: '09 ZX6R
Garage
Quote:
Originally Posted by jd41 View Post
I'll have my penske triple piggyback for sale next week after my last TD of this year. PM me if you're interested.
PM'd
jd41 likes this.

"Basic stuff fellas. Use your head for something other than to break your next fall."

Words to live by
RJ2112 is online now  
post #8 of 25 Old 11-30-2019, 02:08 AM
MotoGP Champion
 
Strider's Avatar
 
Join Date: Sep 2013
Location: Texas
Posts: 3,603

I Ride: 2009 ZX-6R
Garage
I've heard great things about the JRi shocks: www.jrishocks.com
RJ2112 likes this.

Winner - 6OTM - March 2014
2009 ZX-6R (65,695 miles and counting) | www.ZX6R.us | www.Seaton007.com

M4 GP Slip-on | ASV C5 Levers | Spiegler SS Brake Lines | SpeedoHealer V4
Custom FE | K&N Air Filter | Vortex Sprockets -1/+2 | EK MVXZ Chain
Strider is offline  
post #9 of 25 Old 11-30-2019, 09:25 AM
Team Green
 
mmattockx's Avatar
 
Join Date: Sep 2018
Location: Central Alberta, Canada
Posts: 212
Quote:
Originally Posted by RJ2112 View Post
We're budgeting ~$400. If you are able to point me at what my options are at that price point, and give a recommendation as to why you'd go a particular way it would be appreciated.
I'm not sure this matters to your budget or not, but you should keep in mind that you can always sell any aftermarket shock for most of what you paid for it in a few years if necessary, getting much of the money back out of it.


Quote:
Originally Posted by Newyork View Post
Iíd look for a used Penske or JRI if I were you.
+1. A used name brand is a great way to go for a bike that is a few years old where the racers have moved on and there are spares sitting in garages across the land. I lucked into an excellent condition cheap Ohlins for my 98 from a fellow member of an email list to replace the sacked OEM unit and it was a great upgrade.


Quote:
Originally Posted by Strider View Post
I've heard great things about the JRi shocks: www.jrishocks.com
Thanks for that, I hadn't heard of JRI before. I'm not seeing sport bike shocks on their site?


Mark

1998 ZX6R
2005 KTM 450EXC
1982 GS1100E

Last edited by mmattockx; 11-30-2019 at 09:29 AM.
mmattockx is offline  
post #10 of 25 Old 11-30-2019, 05:13 PM
MotoGP Champion
 
Strider's Avatar
 
Join Date: Sep 2013
Location: Texas
Posts: 3,603

I Ride: 2009 ZX-6R
Garage
Quote:
Originally Posted by mmattockx View Post
Thanks for that, I hadn't heard of JRI before. I'm not seeing sport bike shocks on their site?

Mark
Weird, I don't see the sportbike shocks on their site either, but I'm finding them from other distributors/sellers:

http://www.hardracing.com/JRIShocks.htm

https://www.computrackboston.com/Jri...ri-500-259.htm

Winner - 6OTM - March 2014
2009 ZX-6R (65,695 miles and counting) | www.ZX6R.us | www.Seaton007.com

M4 GP Slip-on | ASV C5 Levers | Spiegler SS Brake Lines | SpeedoHealer V4
Custom FE | K&N Air Filter | Vortex Sprockets -1/+2 | EK MVXZ Chain

Last edited by Strider; 11-30-2019 at 05:17 PM.
Strider is offline  
post #11 of 25 Old 11-30-2019, 05:26 PM
Post Master General
 
jd41's Avatar
 
Join Date: Apr 2015
Location: Monterey, California
Posts: 5,832

I Ride: 2014 Kawasaki ZX-6R, 2013 Kawasaki Ninja 300
Garage
Quote:
Originally Posted by Strider View Post
Weird, I don't see the sportbike shocks on their site either, but I'm finding them from other distributors/sellers:

JRI Shocks JRI Cartrrdge Kits JRI Suspension JRI

https://www.computrackboston.com/Jri...ri-500-259.htm
They are no longer making motorcycle shocks. I asked Hard Racing about it about a year ago and it was what they said.
Strider likes this.

JL99
jd41 is offline  
post #12 of 25 Old 12-01-2019, 12:19 PM
Pro Racer
 
Turtleface's Avatar
 
Join Date: Jan 2016
Location: Pearland, TX
Posts: 764

I Ride: '07 ZX6R
I was watching a Dave Moss suspension setup video, where the customer had a dying rear shock on some sort of 600 cc super sport. Dave’s advice was to pickup a used OEM unit, have it refreshed, and then swap it for the current one. Dave stated you get about 7-8k out of an oem, and to keep the old one, and just keep refreshing/swapping them out.

I don’t know how often a good aftermarket unit needs to be refreshed, but if it’s similar, it might be cheaper to go the oem route, unless your trying to shave seconds of a lap time.

Pretty sure I should look into this, as my rear hasn’t been touched in it’s nearly 75k mike life...
Turtleface is offline  
post #13 of 25 Old 12-01-2019, 01:32 PM Thread Starter
Post Master General
 
RJ2112's Avatar
 
Join Date: Apr 2012
Location: Bowling Green, VA
Posts: 12,167

I Ride: '09 ZX6R
Garage
Quote:
Originally Posted by Turtleface View Post
I was watching a Dave Moss suspension setup video, where the customer had a dying rear shock on some sort of 600 cc super sport. Daveís advice was to pickup a used OEM unit, have it refreshed, and then swap it for the current one. Dave stated you get about 7-8k out of an oem, and to keep the old one, and just keep refreshing/swapping them out.

I donít know how often a good aftermarket unit needs to be refreshed, but if itís similar, it might be cheaper to go the oem route, unless your trying to shave seconds of a lap time.

Pretty sure I should look into this, as my rear hasnít been touched in itís nearly 75k mike life...
That's an option, if you can find someone to refresh the OEM unit..... I've got emails out to everyone I listed hyperlinks to, and have only gotten one response, to say that the company is shut down.

On Lloyd's advice, I went the route of buying a $57 used OEM shock from '13+, and it's a marked improvement over the sacked out '09 shock. If I could send the '09 out to be refreshed, I would certainly go that route as I won't be 'down' while that work happens.

I'm even considering what it would take to gather the tools to learn how to do it myself. Hardest part seems to be recharging the shock with high pressure nitrogen ( I could do that at work ).

"Basic stuff fellas. Use your head for something other than to break your next fall."

Words to live by
RJ2112 is online now  
post #14 of 25 Old 12-01-2019, 02:38 PM Thread Starter
Post Master General
 
RJ2112's Avatar
 
Join Date: Apr 2012
Location: Bowling Green, VA
Posts: 12,167

I Ride: '09 ZX6R
Garage
Has anyone used EPM in NJ for suspension work?

Motorcycle Shock Rebuild Service - EPM Performance Imports

"Basic stuff fellas. Use your head for something other than to break your next fall."

Words to live by
RJ2112 is online now  
post #15 of 25 Old 12-01-2019, 03:30 PM Thread Starter
Post Master General
 
RJ2112's Avatar
 
Join Date: Apr 2012
Location: Bowling Green, VA
Posts: 12,167

I Ride: '09 ZX6R
Garage
How about Cogent Dynamics?

https://www.motocd.com/contact-us/

"Basic stuff fellas. Use your head for something other than to break your next fall."

Words to live by
RJ2112 is online now  
Reply

  ZX6R Forum > ZX6R Forum > Mechanical and Technical

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not 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