Go Back   Harley Davidson Forums > Harley Davidson Motorcycles > Touring Models
Sign in using an external account
Register Forgot Password?
Search


Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by: Fuel Moto USA

Reply
 
 
 
P
 
Thread Tools Search this Thread
  #1  
Old 04-22-2009, 04:32 PM
sgdiesel sgdiesel is offline
Road Warrior
Join Date: Nov 2008
Location: Cheltenham, UK
Posts: 1,286
Default Rear shock air pressure

The benifit of a really long, multi day ride is you get the chance to note all the quirks and try certain tests.

I bought the HD shock pump just before leaving with a view to trying different pressures as I was heavily loaded. Started day 1 at 18psi and noticed a disconcerting speed wobble at 90 mph (not life threatening but irritating)

Next day pumped her up to 22psi, it was a different back and she sat down beautifully.

Not saying this will remedy all wobbles, but it certainly made a massive difference in my case
Reply With Quote
  #2  
Old 04-22-2009, 04:45 PM
hellmut73 hellmut73 is offline
Prospect
Join Date: Jul 2008
Location: Maple Valley, WA.
Posts: 111
Default

I was about to trade in my '08 Ultra because it handle so poorly it was borderline dangerous. I was just about to purchase a bagger brace to see if it would help. One night I was looking through the manual and came across the suspension section. So on a hunch I bought one of those air pumps as well. The stupid dealer I bought the bike from only had 5 psi in the shocks. I am fat (6'2" 300lbs.) so I pumped up the shocks to 20 psi right of the bat. Man what a difference! it was like a completely different bike. I now ride between 25 and 20. I no longer feel the need to purchase the bagger brace. ( I am not saying that it is not a good product or not needed so don't jump on me). I carry that little pump with me everywhere. Now if I can just get the issues in my front suspension figured out. Good post sgdiesel.
Reply With Quote
  #3  
Old 04-22-2009, 04:46 PM
Dune2008 Dune2008 is offline
Hang Around
Join Date: Apr 2009
Posts: 15
Default

I have a '09 Ultra and 2-up I need to run 40 psi or I seem to bottom out all the time. Im 200lbs and the GF is tiny....my '03 Classic never seemed to have this issue. I also have the HD pump. Anyone else have a 'bottoming-out' issue?
Reply With Quote
  #4  
Old 04-22-2009, 05:02 PM
Bamboo's Avatar
Bamboo Bamboo is offline
Prospect
Join Date: Jul 2007
Location: Vermont
Posts: 186
Default

Quote:
Originally Posted by Dune2008 View Post
I have a '09 Ultra and 2-up I need to run 40 psi or I seem to bottom out all the time. Im 200lbs and the GF is tiny....my '03 Classic never seemed to have this issue. I also have the HD pump. Anyone else have a 'bottoming-out' issue?
Yup, ride with 40psi on my Street Glide solo is good and 50 psi. two-up. I am 235 and wife at 135. This thing bottoms like crazy on our roads at any lower!
__________________
09 FLHX Rootbeer
Tach it out!
Reply With Quote
  #5  
Old 04-22-2009, 05:05 PM
skratch's Avatar
skratch skratch is offline
Extreme HDF Member
Join Date: Jan 2007
Location: anacoco, la
Posts: 10,829
Default

Quote:
Originally Posted by Dune2008 View Post
I have a '09 Ultra and 2-up I need to run 40 psi or I seem to bottom out all the time. Im 200lbs and the GF is tiny....my '03 Classic never seemed to have this issue. I also have the HD pump. Anyone else have a 'bottoming-out' issue?
seems like you have something else going on here. there is no reason you should be bottoming out with less pressure than that.

Quote:
Originally Posted by hellmut73 View Post
Now if I can just get the issues in my front suspension figured out.
i replaced the stock fork fluid with the se heavy (not the race) and am really liking that. give it a try and see. i followed iclicks post on changing the oil without having to tear the forks apart.
__________________
<a href=http://hdforums.com/forum/picture.php?albumid=72&pictureid=236 target=_blank>http://hdforums.com/forum/picture.ph...&pictureid=236</a>
Reply With Quote
  #6  
Old 04-22-2009, 05:21 PM
slime_dog's Avatar
slime_dog slime_dog is offline
Prospect
Join Date: May 2007
Location: North Carolina
Posts: 286
Default

The pressure WILL leak out over time. So, the dealer may not have been negligent. The suspension pressure should be checked on a regular basis. It is also my opinion that the pump should be supplied as part of the purchase price since the pressue is a critical maintenance item - bordering on a safety item.
__________________
2007 Electra Glide Ultra Classic
Olive Pearl and black - FLHTCUI
Rineharts, Big Sucker, PCIIIUSB
Reply With Quote
  #7  
Old 04-22-2009, 05:40 PM
sgdiesel sgdiesel is offline
Road Warrior
Join Date: Nov 2008
Location: Cheltenham, UK
Posts: 1,286
Default

Quote:
Originally Posted by slime_dog View Post
The pressure WILL leak out over time. So, the dealer may not have been negligent. The suspension pressure should be checked on a regular basis. It is also my opinion that the pump should be supplied as part of the purchase price since the pressue is a critical maintenance item - bordering on a safety item.
yes it does, and actually quicker that people may imagine. Also important to stress that this should be done with the bike cold, pressure varies significantly with temp of course
Reply With Quote
  #8  
Old 04-22-2009, 05:43 PM
tmblweed's Avatar
tmblweed tmblweed is offline
Road Captain
Join Date: Oct 2007
Location: Near Raleigh N.C.
Posts: 669
Default

Quote:
Originally Posted by Bamboo View Post
Yup, ride with 40psi on my Street Glide solo is good and 50 psi. two-up. I am 235 and wife at 135. This thing bottoms like crazy on our roads at any lower!
I run 30 PSI with the wife on board, no problems for us. Combined weigh about 400 lbs.
__________________
Carefree highway, let me slip away...slip away on you.


Last edited by tmblweed; 04-22-2009 at 10:28 PM..
Reply With Quote
  #9  
Old 04-22-2009, 06:40 PM
Jerm21 Jerm21 is offline
Senior Rider
Join Date: Sep 2005
Location:
Posts: 308
Default

OK, here’s my question… I weigh about 140 soaking wet, yep, I’m a bean pole. So, I’ve been running it at zero psi per the HD manual. Any other skinny guys (or gals) out there running any pressure out there? The ride has been so good that I haven’t bothered playing with it yet.

I have also not purchased the pump yet… it’s on the list, but to be honest not at the top. I have a compressor that allows me to set the max pressure, so I’m thinking I may use that, but haven’t so far.

- Jerm
Reply With Quote
  #10  
Old 04-22-2009, 07:06 PM
KopperTop's Avatar
KopperTop KopperTop is offline
Road Captain
Join Date: Mar 2009
Location: U.S.S.A.
Posts: 702
Default

Agreed - the pump should come standard, but otherwise, everyone should have one. There's so little volume of air in the system that you can't use any ol' bicycle pump to get it right. Most pumps will bleed your air out when you detach. I run about 20 psi (200 lbs) alone and 30 when 2-up (maybe 330 lbs).
__________________
2008 Ultra Classic105th Anniversary Edition
Stage 1 w/V&H Dresser Duals and Classic Turn-downs, Fuelpak and S/E air cleaner
TWR Stabilizer • Wheeldock EZ-Up Center Stand • Savior 250 onboard air compressor • RideTime LED Tourpak & Fender Tip lights • HyperLites 3-ways • 6.5" Polk MM-651 front speakers
Reply With Quote
Old 04-22-2009, 07:06 PM
 
 
 
P
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
A usable "formula" for determining correct tire psi - maybe? JimGnitecki Softail Models 21 08-18-2014 11:12 PM
Oil Pressure 0psi at idle. firefly55 Softail Models 7 01-11-2014 04:31 PM
Dyna Tire pressure rossperk Dyna Glide Models 17 05-18-2013 10:00 PM
Advice using Air suspension pump. Jerzmatic Air Suspensions 7 09-27-2012 03:14 PM
recommend tire pressure? Knights2TheEnd Sportster Models 15 09-20-2012 09:29 PM


Tags
2005, air, davidson, electra, flhtcu, glide, harley, hd, pressure, proper, rear, shock, shocks, street, suspension, ultra


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Join HDForums

Advertising
Featured Sponsors
Vendor Directory
Sponsors

All times are GMT -5. The time now is 06:14 AM.


© Internet Brands, Inc.