Results 1 to 37 of 37
  1. #1
    mtbr member
    Reputation:
    Join Date
    Apr 2010
    Posts
    37

    Best all mountain rear shock for Cannondal Rush?

    I have a cannondale rush that I've been steadily upgrading. Other than the crankset, the last thing on it thats stock is the rear shock which is a manitou radium which leaves much to be desired. Its 7.5'' x 1.75 and I'm trying to find something that will work well for around $250-300. I've been looking at the Fox RP23 which I can find for around $250 in a few places but I don't want to spend another $180 to have send it Fox or Push to have the travel put down from 2'' to 1.75''.

    Are there any other alternatives that are comparable for all mountain riding?

  2. #2
    mtbr member
    Reputation:
    Join Date
    May 2007
    Posts
    53
    I am looking at the same idea, since my Fox Float has no adjustment. I took the shock off and measured where a 2 inch travel shock would end up. Even with my rather tall and hogh volume Conti Trail King 2.2 tires, a rear shock with a 7.5 i2i and 2 inches of travel the tire does not touch the seat tube. The only concern I have with going in this direction is that the extra bit of travel would make the already low BB even worse for pedal strikes. But then I thought that if I am close to bottoming out the shock, I doubt I'm pedaling anyway, so this shouldn't matter too much.

    I have slowly been swapping out a few parts here and there to make my large alu Rush more of a rough duty trail bike and less of a xc/marathon machine. Started with 2.35 Nevegals, love the volume and traction, but roll slow, so switched to the trail kings. Changed the stem from 120mm 5 deg rise to a 90mm 20deg rise, kept the extra wide stock handlebars uncut. Now I am looking for a better rear shock and a dropper seatpost to complete this project. I am waiting to see the new 27.2 kind shock when it comes out.

  3. #3
    mtbr member
    Reputation:
    Join Date
    Apr 2010
    Posts
    37
    So you don't think that having that extra quarter inch of travel will cause any problems? I know it will void the warranty which isn't an issue since I got it used but I haven't found any follow up posts about how well it works.

  4. #4
    Just a flesh wound
    Reputation: Prophet Julio's Avatar
    Join Date
    May 2008
    Posts
    1,825
    I changed my stock Prophet Radium with 2" travel to a Manitou Swinger 3way Air w/ SPV with the same I2I but extra 1/4" travel. (200 mm x 50 mm to 200 mm x 56 mm). Great upgrade. Don't notice the extra travel, but the SPV is fantastic, totally eliminated pedal bob and made for a much better climber. The Rush has the same single pivot rear, so it would work nice, and you can get them on ebay for $100 to $150 brand new.

  5. #5
    mtbr member
    Reputation:
    Join Date
    May 2007
    Posts
    53
    Quote Originally Posted by Gleb86
    So you don't think that having that extra quarter inch of travel will cause any problems? I know it will void the warranty which isn't an issue since I got it used but I haven't found any follow up posts about how well it works.
    take your shock off the bike, and then measure 5.5 inches (7.5 i2i - 2 inch stroke) between the center of the shock mount holes. Look at your rear tire and make sure it isn't contacting the seat tube at this distance. If not, you are good to go.

  6. #6
    mtbr member
    Reputation: Duncan1104's Avatar
    Join Date
    Aug 2007
    Posts
    1,176
    http://www.bikewagon.com/Forks-Heads...47676-1-2.html
    Here's a Fox RPL with the right dimensions on Bikewagon.

  7. #7
    mtbr member
    Reputation:
    Join Date
    May 2007
    Posts
    5,179
    Quote Originally Posted by Duncan1104
    http://www.bikewagon.com/Forks-Heads...47676-1-2.html
    Here's a Fox RPL with the right dimensions on Bikewagon.
    good choice, you get the propedal lever and the correct size.

    I use the propedal a lot. On to climb and flip open for descent!!!!! I have an RP23 that was on my Prophet, then moved it to my Rize. The only difference between the 2 is the level adj on the RP23 propedal.
    Lead by my Lefty............... right down the trail, no brakes.

  8. #8
    mtbr member
    Reputation:
    Join Date
    Apr 2010
    Posts
    37
    Thanks for all your help everyone but the solution to the problem just landed in my lap. A santa cruz LT2 frame with a Fox RP23 just came up on chainlove.com for $1000!!!!!!! A 2200 frame for that cheap is pretty sweet. I've spent waaay too much money on that site though. Its over in a few minutes. I just hope that most of my components are compatible with it.

  9. #9
    JDM
    JDM is offline
    mtbr member
    Reputation: JDM's Avatar
    Join Date
    May 2008
    Posts
    677
    I have rush and have gone a simialr direction with it. I put a longer 200x50mm manintou 4-way (from a 190 x 45mm fox rp2) on it which meant filing the swing arm so it doesn't hit the seat tube when the shock is fully extended. This raises the rear of the bike ~3/4".

    I also put a 650b wheel on the front. this raises the front about the same amount and keeps the head tube angle about the same as stock. I don't notice any negative effect on handling and the extra clearance is nice.

    I also went to a shorter stem and like it. I got a good deal 100mm one, but would have gone 90mm otherwise.

    I love the traction from my 2.3 nevagals running around 25psi. I wouldn't give up the traction for lower rolling resistance.

  10. #10
    mtbr member
    Reputation:
    Join Date
    May 2007
    Posts
    53
    Agree about the Nevs, but so far the Trail Kings have he same if not better grip. I've drunk the black chili kool aide and I think I like it.

  11. #11
    mtbr member
    Reputation:
    Join Date
    Jun 2005
    Posts
    74
    I had the RUSH with an RP23, and loved it. Used it mostly for all mountain (despite the low BB clearance). However, recently tried and bought an Intense EVP 5.5 with the VPP suspension, which I think your Santa Cruz LT has....and I never looked back....it's night and day.

    If you could switch frames, do it, the VPP suspension is so much better than the single pivot of the RUSH.

    Here is the major difference...the VPP will keep the back tire glued to the ground on climbs, and over the rough stuff of the decent. It's amazing. The single pivots don't quite absorb the rough stuff up (because they need propedal), and on the way down they chatter over the rough.

    HOWEVER, the single pivots excel in giving you that squish when you land larger drops, like jumping off water bars. Whereas the vpp I've noticed doesn't go quite that deep into the squish. With the vpp, the first 2/3 of the shock stroke is used quite rapidly, but that last 1/3 is not too plush. But it's SO worth it.....it's like riding over marshmallows and pillows...
    Good luck with the upgrade or choice...

  12. #12
    mtbr member
    Reputation:
    Join Date
    Jun 2005
    Posts
    74
    Oh...and I kept the Lefty (not from the rush, but from my prophet)
    Attached Thumbnails Attached Thumbnails Best all mountain rear shock for Cannondal Rush?-lefty1.jpg  


  13. #13
    mtbr member
    Reputation:
    Join Date
    Apr 2010
    Posts
    37
    Quote Originally Posted by c-dale99
    I had the RUSH with an RP23, and loved it. Used it mostly for all mountain (despite the low BB clearance). However, recently tried and bought an Intense EVP 5.5 with the VPP suspension, which I think your Santa Cruz LT has....and I never looked back....it's night and day.

    If you could switch frames, do it, the VPP suspension is so much better than the single pivot of the RUSH.

    Here is the major difference...the VPP will keep the back tire glued to the ground on climbs, and over the rough stuff of the decent. It's amazing. The single pivots don't quite absorb the rough stuff up (because they need propedal), and on the way down they chatter over the rough.

    HOWEVER, the single pivots excel in giving you that squish when you land larger drops, like jumping off water bars. Whereas the vpp I've noticed doesn't go quite that deep into the squish. With the vpp, the first 2/3 of the shock stroke is used quite rapidly, but that last 1/3 is not too plush. But it's SO worth it.....it's like riding over marshmallows and pillows...
    Good luck with the upgrade or choice...

    Thanks and now you've got me all stoked! Never thought I'd be riding a bike this good for a year or 2. Should go nicely with my Magura Thor

  14. #14
    mtbr member
    Reputation: mgreen's Avatar
    Join Date
    Aug 2007
    Posts
    46
    RP23. You will not regret it.

  15. #15
    mtbr member
    Reputation:
    Join Date
    Apr 2010
    Posts
    37
    Quote Originally Posted by mgreen
    RP23. You will not regret it.
    I'm probably going to be passing off my Cannondale frame to a friend for cheap (since I got it cheap from a snowboarding buddy) and I'll point him here to convince him to get the RP23. If he doesn't take there will be a cheap great condition Rush 400 frame in the classifieds in a week or so.

  16. #16
    mtbr member
    Reputation:
    Join Date
    May 2007
    Posts
    53
    For those that have used both or either of the RP23 or the manitou swinger, any opinions on which would be best for this bike? I still have my stock Fox Float, and the bob coupled with lack of adjustment is getting annoying. Some people have complained on here that the stock cannondale rush rp23s are set up very firm and race like in compression. any truth to this? What about aftermarket RP23s

  17. #17
    mtbr member
    Reputation:
    Join Date
    Jul 2010
    Posts
    67
    I have ridden both and the stock RP23 was too stiff as you stated. I had the stock RP23 modified by PUSH. Bigger airsleave and valving. Changed the ride to a similar feeling on my prophet. More stable and less chatter on the down hills but there is no free lunch so rough curves and banked turns are swishy and can feel like a rolling boat.

    I really like the rp23 with the propedel switch and I have been hearing good things about the roxshox monarch shock. I have ridden a monarch once and it performed well with the same propedel like switch. The switch allows you to setup two different rear suspensions. One for xc and one for dh.

  18. #18
    maindude
    Reputation:
    Join Date
    Aug 2009
    Posts
    24

    Cane Creek Cloud Nine

    Has anyone tried the a Cane Creek Cloud Nine rear shock on a Rush? I have heard great things about them from from other bike owners.

  19. #19
    mtbr member
    Reputation: de1mos's Avatar
    Join Date
    Jul 2009
    Posts
    52

    DT swiss xr carbon shock with rush

    Has somebody tried install Dt swiss xr shock on Rush alloy frame?
    Cannondale Rush 35th anniversary 2

  20. #20
    Mr. Knowitall
    Reputation: hssp's Avatar
    Join Date
    Aug 2007
    Posts
    849
    I see the best contenders are RP23 and RS Monarch 4.2 as the benchmark for air shock performance.

  21. #21
    mtbr member
    Reputation: de1mos's Avatar
    Join Date
    Jul 2009
    Posts
    52

    Done

    Customized bushing from 8/50mm to 8/32,5mm and 8/37,5mm...
    Best all mountain rear shock for Cannondal Rush?-2010-09-251.jpg
    Cannondale Rush 35th anniversary 2

  22. #22
    maindude
    Reputation:
    Join Date
    Aug 2009
    Posts
    24
    So how is it working out?

  23. #23
    mtbr member
    Reputation: de1mos's Avatar
    Join Date
    Jul 2009
    Posts
    52
    It works really well. Very smooth
    Cannondale Rush 35th anniversary 2

  24. #24
    mtbr member
    Reputation: cannondaleportugal's Avatar
    Join Date
    Aug 2008
    Posts
    205
    hi guys im thinking about a rush or a rz 120mm ,what your opinions about geometry ,construction ,feeling ,etc ,which one is the best in your opinion ?

  25. #25
    maindude
    Reputation:
    Join Date
    Aug 2009
    Posts
    24

    Rush w/650b and rz 120 fork

    My dream bike would be a Carbon Rush with 650b wheels and a new Lefty Ultra PBR120. I have a aluminum rush w/650b wheels and the Lefty speed 110 fork and it is very nice. I have rode a couple of rz120's and the new fork is very plush and light.

  26. #26
    High Alpine Adventure
    Reputation: DaGoat's Avatar
    Join Date
    Sep 2008
    Posts
    1,769
    Quote Originally Posted by de1mos
    Customized bushing from 8/50mm to 8/32,5mm and 8/37,5mm...
    What size XR did you use? A 190mm X 50mm? That comes out to 7.48" X 1.97"...

    How did you get that to work with the extra travel? I'm running 650b in the rear of my Rush and really need something like 30mm stroke. Can the XR's be easily limited in the stroke?
    Dug-Da-Goat

    Something changes at 12,000'
    ...so welcome to the Odyssey!

    Building your trails at FooMTB

  27. #27
    High Alpine Adventure
    Reputation: DaGoat's Avatar
    Join Date
    Sep 2008
    Posts
    1,769
    Quote Originally Posted by maindude View Post
    My dream bike would be a Carbon Rush with 650b wheels and a new Lefty Ultra PBR120. I have a aluminum rush w/650b wheels and the Lefty speed 110 fork and it is very nice. I have rode a couple of rz120's and the new fork is very plush and light.
    Something like this? De1mos, where did you order your DTSwiss from? I'd love to do the same!
    Attached Thumbnails Attached Thumbnails Best all mountain rear shock for Cannondal Rush?-img_5059.jpg  

    Dug-Da-Goat

    Something changes at 12,000'
    ...so welcome to the Odyssey!

    Building your trails at FooMTB

  28. #28
    mtbr member
    Reputation: de1mos's Avatar
    Join Date
    Jul 2009
    Posts
    52
    From UK ebay.
    Cannondale Rush 35th anniversary 2

  29. #29
    mtbr member
    Reputation:
    Join Date
    Feb 2006
    Posts
    79
    Nice bike DaGoat! Did you remove the bracket to fit the 650b rear wheel? What size of tire do you recommend? I have an 09 carbon that I plan on doing the same conversion to. Any feedback greatly appreciated.

  30. #30
    High Alpine Adventure
    Reputation: DaGoat's Avatar
    Join Date
    Sep 2008
    Posts
    1,769
    Quote Originally Posted by tg26 View Post
    Nice bike DaGoat! Did you remove the bracket to fit the 650b rear wheel? What size of tire do you recommend? I have an 09 carbon that I plan on doing the same conversion to. Any feedback greatly appreciated.
    Yeah, the bracket has been removed. I left the tabs because I'm a bit lazy and I didn't want to hassle with them. I ride in fairly dry conditions so no problems so far. I'm running a Racing Ralph 2.1 and it fits fine.

    Not real happy with the grip on some of the crushed granite trails around Abq. They are light and roll smooth, so great for racing. For more trail oriented riding I have some Neo-Moto 2.1 that I am going to try once these are toast.

    I love this bike for High Country epics. At 25lbs it is a sweet climbing rig and easy to hoof up through scree fields. I have a 120 Ultra on the front and it does lighten the steering a bit, but the bike is really responsive and I can adjust on a dime. Doesn't seem to lift as bad as when I ran the 130 on it, so I'm happy with the handling.

    The only thing that bugs me is having to reach down and adjust the RP23. Being a HIgh Single Pivot means you have to use the platform. I'm thinking I might go with the DT Swiss so I can put a handle bar lockout on it. That would rock!

    Is it a bike I'll keep forever? Well I go through bikes pretty often trying to find the holy grail of lightweight, stiff, great climber with decending skills to match. There's lots of options out there (SC LT, Stumpy, etc) but for the High Alpine stuff I like to do, this bike fits the bill pretty damn well!
    Attached Thumbnails Attached Thumbnails Best all mountain rear shock for Cannondal Rush?-img_4312w.jpg  

    Dug-Da-Goat

    Something changes at 12,000'
    ...so welcome to the Odyssey!

    Building your trails at FooMTB

  31. #31
    mtbr member
    Reputation:
    Join Date
    May 2005
    Posts
    2,167
    Da Goat, that bike is just so sweet! My Prophet is fully 650B now also

    Back to the shock thing....If you guys had the choice which would you pick. A new custom tuned Pushed Monarch or the RP23 (possibly Pushed to be fair I guess) And jeez, which Monarch to get if you chose that route?

    Not a Rush but my Prophet has the same single pivot setup. Currently it has an RP23 (firm compression, medium rebound) that's overdue for service. I can either get the new Push custom Monarch or have the RP23 rebuilt and custom tuned by Push. Not a huge difference in price if the Monarch is gonna be that much better.

    Thoughts??? And also, I live in New England where it's rock/root city and lots of short, steep, technical climbs if that matters.
    2013 Banshee Spitfire V2 650b

  32. #32
    mtbr member
    Reputation:
    Join Date
    Apr 2006
    Posts
    42
    speaking of rush frames (like the one i have and love).
    i recently purchased a RP23 and waiting to install.

    would a lefty max 140mm change the geometry dramatically?
    trying to convert this rush into more of an all mountain type bike. currently it has the stock lefty speed from 2006, not sure, but i believe its 110mm travel.

    anyone else change the rush lefty to a longer travel? what do i need to do to compensate the rear to keep the same geometry and handling?

    thanks in advance!

  33. #33
    High Alpine Adventure
    Reputation: DaGoat's Avatar
    Join Date
    Sep 2008
    Posts
    1,769
    Quote Originally Posted by spyguy View Post
    anyone else change the rush lefty to a longer travel? what do i need to do to compensate the rear to keep the same geometry and handling?
    Might want to read through this.

    Calling all Rush Riders

    I found that the Rush frame is real sensitive to changes in fork trail. The 130 MAX was pretty floppy, so I settled on the Ultra 120. It seems to have given me that perfect balance of a little more trail oriented ride, with a bit quicker handling, but still able to keep the front end down on the trail.

    I myself wouldn't try to go beyond the Ultra 120.
    Dug-Da-Goat

    Something changes at 12,000'
    ...so welcome to the Odyssey!

    Building your trails at FooMTB

  34. #34
    mtbr member
    Reputation:
    Join Date
    Jan 2012
    Posts
    460
    "rear shock". Not to be confused with a "front shock"
    Yes I used to say the same to my dirt bike friends that said "front forks".
    Please don't be offended. I am just intrigued by what people say.
    Last edited by bigbadwulff; 02-06-2012 at 11:43 AM.

  35. #35
    maindude
    Reputation:
    Join Date
    Aug 2009
    Posts
    24

    Nice Rush!

    Nice Rush, that is a beauty. Like you said, the Rush just comes alive with 650b wheels. Mine responds and handles much better and is also more stable. You liking that 120 on front?
    Attached Thumbnails Attached Thumbnails Best all mountain rear shock for Cannondal Rush?-rush-sm1.jpg  


  36. #36
    mtbr member
    Reputation:
    Join Date
    Oct 2007
    Posts
    517
    I use an RP23 on my Prophet with 150 of air in it (I weigh 155) I need it squishy because my ankle still hurts (heel fractured into 3 parts and ankle twisted) propedal on 3 so its almost hard. Find one 2 years old and get it for a good price - you wont regret it. Experiment with rebound. Its really important for max preformance.

  37. #37
    High Alpine Adventure
    Reputation: DaGoat's Avatar
    Join Date
    Sep 2008
    Posts
    1,769
    Quote Originally Posted by maindude View Post
    Nice Rush, that is a beauty. Like you said, the Rush just comes alive with 650b wheels. Mine responds and handles much better and is also more stable. You liking that 120 on front?
    The 120Ultra does quicken the steering a bit, but I find it handy for adjusting my line. The front end is maybe a little lighter, but I don't find it lifts too much. In fact it is better for popping up onto ledges and such.

    It definitely is much better than the 130Max on the front. I rode that for a while but felt it was just a touch too much. Getting a bit floppy and was pretty light. I would pop the front end fairly regularly while climbing.

    Is the extra 1/2" worth the expense? Probably not, but I did it and I'm happy... and I guess thats all that matters.

    Enjoy!
    Dug-Da-Goat

    Something changes at 12,000'
    ...so welcome to the Odyssey!

    Building your trails at FooMTB

Posting Permissions

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