Results 1 to 23 of 23
  1. #1
    mtbr member
    Reputation: Accident Prone's Avatar
    Join Date
    Apr 2012
    Posts
    87

    HD140mm very harsh riding!

    I have an HD140 with the factory 2012 Fox RP23 Kashima shock with L/L tune and am finding the ride of the rear end very harsh feeling.

    Riding this bike is a bloody nightmare most of the time and it just constantly feels unstable and skittish. I had a Yeti 575 (2011 model) before this HD and the Yeti felt like it was glued to the trails and was easy to ride fast. The Yeti was very stable and surefooted and inspired confidence. My HD is the complete opposite and feels more like a bloody hardtail than anything else.

    I weigh about 80kg (including gear) and run 30% sag at 16mm of travel at around 150psi. With this amount of travel I bottom out occasionally depending on what I am riding. I am running my rebound at around half way but have also experimented with it from one extreme to the other but still cant find a setting I am happy with.

    I have the bike set up with a 2012 Fox Float 32 FIT 150RLC which I also think is a poxy POS that's given me nothing but trouble since day 1 too but that's another story.

    What I am looking for is more of a plush ride. Is this possibly just the way the DW link works? perhaps sacrifices the plush feeling but gains in pedalling performance?

    I am currently wondering if the standard shock tune doesn't suit my weight or something? Should I try changing the volume spacers or just throw the RP23 in the bin and get a RS Monarch Plus which it seems like most people have done?

    I am currently considering converting the bike to 160mm front and rear but this is only a last resort. I don't do big jumps or things that really demand 160mm of travel I don't think.

    Is there anything that you may recommend I try?

    Thanks

  2. #2
    Unpredictable
    Reputation: Ridnparadise's Avatar
    Join Date
    Dec 2007
    Posts
    1,688
    No, it should not be like that. Normally the rear of an Ibis Mojo will be very plush and your settings sound correct. It almost sounds like the shock is locked-out in Pro Pedal, which makes no sense if you are getting appropriate sag and also bottoming out.

  3. #3
    mtbr member
    Reputation: Accident Prone's Avatar
    Join Date
    Apr 2012
    Posts
    87
    The propedal function of the shock is working fine, there is a clear difference with it on and off. I have the shock set on as little pedalling platform as there is.

  4. #4
    mtbr member
    Reputation:
    Join Date
    Dec 2012
    Posts
    33
    You may need to check your pivot bearings .

  5. #5
    mtbr member
    Reputation:
    Join Date
    May 2011
    Posts
    946
    If you're finding 140 harsh then you may need to go to 160.

    Another option is to run less sag. You may be running the shock too low and it's blowing through the travel too quickly and progressing into the firm portion of the spring curve. I find that running too low of pressure only makes a shock feel plush during low speed riding and harsh when I ride aggressively.

    Experiment with a little more pressure/less sag you may be surprised. Don't focus on using all it's travel. Find a balance between useable travel and feel.

  6. #6
    mtbr member
    Reputation: Accident Prone's Avatar
    Join Date
    Apr 2012
    Posts
    87
    the pivot bearings have been replaced but have had no influence on the feel of the ride since it was new.

  7. #7
    mtbr member
    Reputation: Accident Prone's Avatar
    Join Date
    Apr 2012
    Posts
    87
    thanks for this. I have also tried running less sag and it has just made the harsh feeling even worse. I have tried sag settings from around 20-35% and it still rides far too hard for my liking. Its getting very frustrating. Anyone of similar weight to me hear with a 140HD that's had to add volume spacers?


    Quote Originally Posted by canuck_tacoma View Post
    If you're finding 140 harsh then you may need to go to 160.

    Another option is to run less sag. You may be running the shock too low and it's blowing through the travel too quickly and progressing into the firm portion of the spring curve. I find that running too low of pressure only makes a shock feel plush during low speed riding and harsh when I ride aggressively.

    Experiment with a little more pressure/less sag you may be surprised. Don't focus on using all it's travel. Find a balance between useable travel and feel.

  8. #8
    Unpredictable
    Reputation: Ridnparadise's Avatar
    Join Date
    Dec 2007
    Posts
    1,688
    Was it a standard shock? There's no chance it is the wrong volume canister?

    This sounds like one for Tom or Hans at Ibis to help with, because you should be having a great time on that bike.

  9. #9
    mtbr member
    Reputation: doismellbacon's Avatar
    Join Date
    Sep 2007
    Posts
    1,896
    Time to pull your shock and check the bushings and your pivot bearings. I can't get more than a year, tops, out of the lower rear bearings before they start feeling like gravel. Other good advice here too.... I've had canuck's same experience on shocks and forks both... seems counter intuitive, but sometimes more pressure and/or compression damping will make it feel more plush. Also, my RP23 felt a lot more progressive (plush early with better midstroke and bottom support) and bottomless after adding a volume reducer.

  10. #10
    mtbr member
    Reputation: Accident Prone's Avatar
    Join Date
    Apr 2012
    Posts
    87
    The shocks bushings have also been changed and the pivot bearings are all pretty new. Like I said changing these hasn't made any difference to the harsh ride.

    I may have to try the volume spacer trick I think.

  11. #11
    mtbr member
    Reputation: doismellbacon's Avatar
    Join Date
    Sep 2007
    Posts
    1,896
    When I installed the medium spacer, I dropped 15-20psi to maintain similar sag, so it was more plush, but still ramped up better. It's a good and cheap mod to play around with.

  12. #12
    mtbr member
    Reputation: Accident Prone's Avatar
    Join Date
    Apr 2012
    Posts
    87
    Thanks man, think it will be worth a shot before forking out for a new shock.

  13. #13
    mtbr member
    Reputation:
    Join Date
    Aug 2013
    Posts
    107
    The rp23 on this bike blows. I upgraded to a monarch plus with much better results. I still couldn't find that happy medium between small bump compliance and bottoming resistance so I bought a coil shock and everything is amazing. I couldn't of asked for a better feel. Climbs like crazy still too!

  14. #14
    mtbr member
    Reputation:
    Join Date
    Jul 2007
    Posts
    1,078
    I hated the rp23 on my bike (160HD)
    There is little or no mid stroke compression support and there are only 2/3 clicks or rebound control that are worth a damn (and as such on rough stuff my bike would pack down and ride harshly). If I ran the shock faster it would suck on other areas of the trail.
    I simply could not get this shock into a happy place. I have tried a few units (Vivid, RC4, Marzocchi TST air) on the bike now and have settled on the X Fusion Vector Air

  15. #15
    mtbr member
    Reputation:
    Join Date
    Aug 2013
    Posts
    107
    Yeah, the x fusion stuff is nice. I have the vector hlr coil. It has a specific mojo hd tune that works great. I leave the lsc wide open and it pedals great. than just adjust the hsc for either the bike parks or my local xc trails.

  16. #16
    mtbr member
    Reputation: Accident Prone's Avatar
    Join Date
    Apr 2012
    Posts
    87
    Thanks for the info.

    I have dropped my shock off to a specialist suspension tuner here in NZ and told him what the shock seems to be lacking and what I want improved so will see how it goes.

    Failing this I'm just gonna convert my 140 to a 160 front and rear with a Monarch Plus and a Pike.

  17. #17
    mtbr member
    Reputation:
    Join Date
    Jul 2007
    Posts
    1,078
    Hey mate where are you in NZ. Maverick is in Rotovegas and I am in ChCh

  18. #18
    mtbr member
    Reputation: Accident Prone's Avatar
    Join Date
    Apr 2012
    Posts
    87
    Hi mate, I'm up in Auckland.
    Quote Originally Posted by nzl62 View Post
    Hey mate where are you in NZ. Maverick is in Rotovegas and I am in ChCh

  19. #19
    mtbr member
    Reputation: Accident Prone's Avatar
    Join Date
    Apr 2012
    Posts
    87
    So I fixed the problem of my harsh riding 140mm setup by replacing the 140mm setup with a 160mm setup. Goodbye Fox RP23 and Float 32, hello RS Monarch Plus RC3 and Pike RCT3.

    Just went for a short spin today which I really shouldn't have due to a broken thumb from a couple weeks ago but couldn't resist. Thumb was as sore as **** but man a big difference in ride and that was just riding slow. Can't wait to be able to take it for a proper ride!!

    HD140mm very harsh riding!-newsus_zps02337f58.jpg

  20. #20
    mtbr member
    Reputation:
    Join Date
    Jul 2007
    Posts
    1,078
    Looks sweet mate

  21. #21
    mtbr member
    Reputation:
    Join Date
    May 2011
    Posts
    946
    Very sweet.

  22. #22
    mtbr member
    Reputation:
    Join Date
    Jul 2011
    Posts
    250
    The white Pike with black stanchions looks like sex on that white frame. Gorgeous.

  23. #23
    mtbr member
    Reputation: doismellbacon's Avatar
    Join Date
    Sep 2007
    Posts
    1,896
    Yeah, my Mojo boner's raging right now.

Similar Threads

  1. Reign X Riding Harsh
    By sofarider1 in forum Shocks and Suspension
    Replies: 3
    Last Post: 08-23-2012, 12:29 PM
  2. Reign X riding harsh
    By sofarider1 in forum Giant
    Replies: 0
    Last Post: 08-22-2012, 08:06 PM
  3. Tranny- harsh?
    By ade634 in forum Ibis
    Replies: 5
    Last Post: 04-01-2012, 09:36 AM
  4. KM harsh rider or not?
    By Fred Smedley in forum Surly
    Replies: 4
    Last Post: 11-13-2011, 04:45 PM
  5. 66 RC3 Harsh Bottom Out
    By 181picklz in forum Shocks and Suspension
    Replies: 10
    Last Post: 11-11-2011, 06:42 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •