Advertise on Bikeforums.net



User Tag List

Page 1 of 2 12 LastLast
Results 1 to 25 of 26
  1. #1
    Senior Member
    Join Date
    May 2007
    Posts
    207
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Fork Service - Necessary?

    I have been riding my Cannondale F3 alot lately.
    Factory says fork should be serviced every 40 hours of riding. Well, I am getting really close to that. Can I just delay it till the end of the season? Everything is working fine still.... and I don't want to have the bike out of commission for 3 weeks waiting for it...

    I don't see any reason that I can't! Please correct if I am wrong!
    I have a personal MPG of 100. That is per gallon of cytomax.

  2. #2
    Hardrocker
    Join Date
    Jul 2007
    Posts
    1,569
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mic2377 View Post
    Factory says fork should be serviced every 40 hours of riding.
    Seriously? That's ridiculous.

  3. #3
    Old School Rad mtnbiker66's Avatar
    Join Date
    Sep 2004
    Location
    The old Mountains
    My Bikes
    Blur LT
    Posts
    8,198
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I would expect someone with as much trail savy as 2377 to know the answer to such basic questions.
    Like a circus monkey on a stolen Harley......

  4. #4
    Te mortuo heres tibi sim? scrublover's Avatar
    Join Date
    Aug 2004
    Location
    East coast
    My Bikes
    hardtail, squishy, fixed roadie, fixed crosser
    Posts
    3,484
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mtnbiker66 View Post
    I would expect someone with as much trail savy as 2377 to know the answer to such basic questions.

    I heartily agree with this statement.

    (yes, you should service your fork. how often depends on how much/how hard you ride it. the 40 hour thing is a guideline, not like it's a rule. i tend to do do an oil change about every six months +/- depending on how much i've been riding. more in crappy conditions.)

    learn how to do it yourself, and it gets pretty easy to do a basic oil change. then you can also forestall further problems - if something is going wrong with the fork, you'll hopefully see it when things are torn down.
    I believe the clouds in my coffee more than the weatherman on t.v.

  5. #5
    Senior Member
    Join Date
    May 2007
    Posts
    207
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I am a little short on the trail savvy thing - my mtb career is a mere 2 months old at this point.

    I can't do the fork service myself - it is a cannondale headshok, and you need several "dealer-only" tools. If I had a more conventional fork I wouldn't hesitate to tear it down and change the oil, etc. but I don't.

    Unless it breaks, I am just gonna keep an eye on the boot and get it rebuilt at the end of the season.
    I have a personal MPG of 100. That is per gallon of cytomax.

  6. #6
    Old School Rad mtnbiker66's Avatar
    Join Date
    Sep 2004
    Location
    The old Mountains
    My Bikes
    Blur LT
    Posts
    8,198
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mic2377 View Post
    I am a little short on the trail savvy thing - my mtb career is a mere 2 months old at this point......

    Really? Based on your statements in another thread,I would have thought you have years of MTB experience.

    Quote Originally Posted by mic2377 View Post
    People wear baggy, earth colored clothes because they are 1) fat, 2) slow, and 3) can't see dirt from their numerous crashes on them.

    If you are gonna wear a flashy kit in the woods you had better damn well be fast, and able to handle your bike. People can't handle that kind of pressure.... nobody wants to look like a fool.
    People that say things like this show how clueless they really are.
    Like a circus monkey on a stolen Harley......

  7. #7
    Svr
    Svr is offline
    Senior Member Svr's Avatar
    Join Date
    Dec 2005
    Location
    Atlanta, GA
    Posts
    1,223
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mic2377 View Post
    Factory says fork should be serviced every 40 hours of riding.


    Quote Originally Posted by BenLi View Post
    Seriously? That's ridiculous.


    It's normal. Fox and Rock Shox both reccomend an oil change/bushing inspection every 50 hours. That's about every three months for me. It's not a difficult job on most forks.

    It shouldn't hurt anything to extend the maintenance interval a month or two.

  8. #8
    Te mortuo heres tibi sim? scrublover's Avatar
    Join Date
    Aug 2004
    Location
    East coast
    My Bikes
    hardtail, squishy, fixed roadie, fixed crosser
    Posts
    3,484
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mic2377 View Post
    I am a little short on the trail savvy thing - my mtb career is a mere 2 months old at this point.

    I can't do the fork service myself - it is a cannondale headshok, and you need several "dealer-only" tools. If I had a more conventional fork I wouldn't hesitate to tear it down and change the oil, etc. but I don't.

    Unless it breaks, I am just gonna keep an eye on the boot and get it rebuilt at the end of the season.
    Quote Originally Posted by mic2377 View Post
    People wear baggy, earth colored clothes because they are 1) fat, 2) slow, and 3) can't see dirt from their numerous crashes on them.

    If you are gonna wear a flashy kit in the woods you had better damn well be fast, and able to handle your bike. People can't handle that kind of pressure.... nobody wants to look like a fool.
    Ah, now that is funny. Pot--->Kettle--->black.
    I believe the clouds in my coffee more than the weatherman on t.v.

  9. #9
    World's slowest cyclist.
    Join Date
    Oct 2007
    Location
    Londonderry, NH
    My Bikes
    Cannondale CAAD5 and Cannondale Rush
    Posts
    1,353
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Anyone know how to change the oil on a Lefty? I looked at the manual and there's a lot of stuff in there about greasing sliders and oiling air filters and aligning bearings and stuff, but no oil change. Is it possible? (I'd assume that's the type of thing that's "do-able" at home).

  10. #10
    Senior Member
    Join Date
    May 2007
    Posts
    207
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Years of CX experience is different than years of MTB experience. People take themselves much too seriously on this forum.... is it not enjoyable to occasionally swap barbs?

    Back to topic - Yes, the oil that one changes is in the cartridge. Different weights can be used to change the rebound damping. I personally found that my particular headshok was a little bit short on rebound damping at first, but the amount of rebound damping necessary is also dependent on tire pressure. So, aired the tires down to 32/34 psi, and voila, much better! A heavier oil = increase damping.

    So I'm gonna keep riding it.... headed for a 3-day MTB trip up in MN.
    I have a personal MPG of 100. That is per gallon of cytomax.

  11. #11
    Senior Member
    Join Date
    Dec 2005
    Location
    southern oregon
    Posts
    2,631
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Changing the oil in a headshok can be done by a cannondale shop in an hour or so.. not three weeks. IMO, you can go much longer than 40 hours before servicing a headshok. As long as it is holding air, and oil, and the boot isn't ripped.. there really isn't much to do to it.

  12. #12
    Senior Member
    Join Date
    May 2007
    Posts
    207
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Getting the oil changed in the space of an hour implies that you have a cannondale shop nearby.... and that it isn't swamped.

    I already had the fork fail once - apparently it got shipped from the factory w/o the proper loctite on shock unit, and it proceeded to puke all of its oil out of the top in the matter of a 2 hour ride, lockout ceased to work, made all sorts of squishy noises, etc. Hence my quote for a three-week turnaround...
    I have a personal MPG of 100. That is per gallon of cytomax.

  13. #13
    ed
    ed is offline
    . ed's Avatar
    Join Date
    Oct 2005
    Location
    The Summit of Lee
    My Bikes
    2010 Jamis Parker, 2005 Jamis Komodo, 1998 Jamis Komodo, 198? Raleigh Pointe, 1978 Schwinn Super Le Tour 12.2
    Posts
    10,930
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mic2377 View Post
    I already had the fork fail once - apparently it got shipped from the factory w/o the proper loctite on shock unit, and it proceeded to puke all of its oil out of the top in the matter of a 2 hour ride, lockout ceased to work, made all sorts of squishy noises, etc. Hence my quote for a three-week turnaround...
    And people get all lippy with me when I tell them what I think of Cannondale bikes in relation to my riding style, hehe.

    It's not like I'm "anti-Cannondale" or anything. I just don't really like them and try to steer everyone in the world to buy anything but...


  14. #14
    Specialized Rider
    Join Date
    May 2005
    Location
    Nebraska
    My Bikes
    '08 Specialized Rockhopper Disc
    Posts
    38
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by chelboed View Post
    And people get all lippy with me when I tell them what I think of Cannondale bikes in relation to my riding style, hehe.

    It's not like I'm "anti-Cannondale" or anything. I just don't really like them and try to steer everyone in the world to buy anything but...
    I totally understand you there. I won't touch them for that reason. If I can't work on my bike/fix it quickly, what's the point of having it? I would personally hate having to send it to a dealer each time it needed a tune-up.

  15. #15
    my brain hurts! fosmith's Avatar
    Join Date
    Mar 2008
    Location
    Oak Knoll
    My Bikes
    Numerous bicycles.
    Posts
    679
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    the easy diy service you can do on a headshock is to inspect/relube the bearings. cut the lower ziptie that holds the boot on (clean it off really good first), lift up the boot to expose the bearing races. make sure they are clean, clean them if necessary and smear some good grease on them. pull the boot back down and put a new zip tye on and you're done.

    i'd recommend having a good shop do your oil change.

  16. #16
    Senior Member
    Join Date
    Jan 2008
    Location
    Pennsylvania
    My Bikes
    2001 f2000sx 2002 r2000si
    Posts
    140
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    My last bike i replaced the oil once in 2years the headshock and had it rebuilt after 2 more years most due to a ripped boot and deep water crossings. i had it sent out mid july 10 days later rebuilt fork in the bike and i was riding the cost was $165 not to bad. My lefty i try to get new oil in once a year.

  17. #17
    unofficial roadie DirtPedalerB's Avatar
    Join Date
    Jul 2006
    Location
    Out in the woods you see
    My Bikes
    2004 Marin bobcat trail, 2006 trek fuel ex7, 2007 iron horse road bike
    Posts
    1,444
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    hmmm I have a used rock shox reba that I have about 75 hours on plus probably 20 or so from the person that had it before me. I haven't done jack to it. At what point will it explode? and about how much will the stuff cost me to change the oil myself? I think I have a manual for it, but it doesn't give any instructions on how to disassemble. any help is apprreciated.
    I only pedal uphill.

  18. #18
    Senior Member
    Join Date
    May 2007
    Posts
    207
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    in response to why someone would buy something that is not user-serviceable, you gotta remember that the headshok really is a pretty good unit. Stiffness is much better than other similar light forks (ie sid) and after the initial snafu, is being pretty durable. Not to mention it is friggin' light, and I got a screaming deal on the bike.

    i may get ambitious and try to source some of the special dealer tools. a buddy works at a shop that recently started carrying cannondale, and some strings may be pulled..... he did a rebuild yesterday and tells me it is not bad.
    I have a personal MPG of 100. That is per gallon of cytomax.

  19. #19
    Senior Member embankmentlb's Avatar
    Join Date
    May 2008
    Location
    North, Ga.
    My Bikes
    Bernard Hinault Look - 1986 tour winner, Guerciotti, Various Klein's & Panasonic's
    Posts
    1,517
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have not serviced my fork sense new. That was 8 years ago. Guess that's why i don't have a Dale.

  20. #20
    World's slowest cyclist.
    Join Date
    Oct 2007
    Location
    Londonderry, NH
    My Bikes
    Cannondale CAAD5 and Cannondale Rush
    Posts
    1,353
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by fosmith View Post
    the easy diy service you can do on a headshock is to inspect/relube the bearings. cut the lower ziptie that holds the boot on (clean it off really good first), lift up the boot to expose the bearing races. make sure they are clean, clean them if necessary and smear some good grease on them. pull the boot back down and put a new zip tye on and you're done.

    i'd recommend having a good shop do your oil change.
    On a Lefty I find it easier to cut the upper zip tie. The larger diameter of the boot at the top gives you a little more working room and you really don't need to grease to the very bottom (since the fork doesn't travel down that far).

    How about an oil change on a Lefty? What's involved that requires a shop to do it? Is it a special tool thing?

  21. #21
    Svr
    Svr is offline
    Senior Member Svr's Avatar
    Join Date
    Dec 2005
    Location
    Atlanta, GA
    Posts
    1,223
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by DirtPedalerB View Post
    I haven't done jack to it. At what point will it explode?
    Probably never, it'll just gradually stop working. Sram.com has PDF versions of the service manuals on their site.

  22. #22
    unofficial roadie DirtPedalerB's Avatar
    Join Date
    Jul 2006
    Location
    Out in the woods you see
    My Bikes
    2004 Marin bobcat trail, 2006 trek fuel ex7, 2007 iron horse road bike
    Posts
    1,444
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    any good place to source the seals and tools I'd need to rebuild it online?, I shop all the online shops, but never came across fork parts
    I only pedal uphill.

  23. #23
    PBR Racing RIC0's Avatar
    Join Date
    Aug 2006
    Location
    Wifes $hit List
    My Bikes
    KHS and Cannondale
    Posts
    968
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    fork oil breaks down, which in turn, increases friction on parts, which in turn wear out faster. Forks need to be serviced.

  24. #24
    unofficial roadie DirtPedalerB's Avatar
    Join Date
    Jul 2006
    Location
    Out in the woods you see
    My Bikes
    2004 Marin bobcat trail, 2006 trek fuel ex7, 2007 iron horse road bike
    Posts
    1,444
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ok last question,, I have the manual it looks pretty easy to take apart. I see I will need 2 different weights of fork oil and a air seal kit. My question is do I even need an air seal kit?? or can I just clean it and dump in some new oil and go with that.

    my rockshox manual says service after 100 hours of riding.

    i need like 10cc's of oil yet all I can find online is a quart? what's up with that.
    I only pedal uphill.

  25. #25
    Te mortuo heres tibi sim? scrublover's Avatar
    Join Date
    Aug 2004
    Location
    East coast
    My Bikes
    hardtail, squishy, fixed roadie, fixed crosser
    Posts
    3,484
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by DirtPedalerB View Post
    ok last question,, I have the manual it looks pretty easy to take apart. I see I will need 2 different weights of fork oil and a air seal kit. My question is do I even need an air seal kit?? or can I just clean it and dump in some new oil and go with that.

    my rockshox manual says service after 100 hours of riding.

    i need like 10cc's of oil yet all I can find online is a quart? what's up with that.
    if you are just doing an oil change, no worries about messing with the air seal kit, unless you are having air leak issues. don't even need to remove the lowers unless doing a full service. a biasic oil change is super easy, unless you're having other problems with the fork. should be able to do it with fairly basic tools. i did a basic oil change to my lyric two nights ago in under 15 minutes.

    the smaller oil volume going in the fork lowers is primarily for a bit of lubrication - not as critical to have the absolute correct weight. the upper oil for the damper is more volume and weight critical.

    tip on the oil: go to a local moto shop and get it there. you can get the same or better quality oil, for far less money than "bike specific" stuff. you'll have plenty for later. be sure to get stuff without seal sweller agents in.
    I believe the clouds in my coffee more than the weatherman on t.v.

Page 1 of 2 12 LastLast

Posting Permissions

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