Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-06-08, 04:59 PM   #1
mic2377
Senior Member
Thread Starter
 
Join Date: May 2007
Bikes:
Posts: 207
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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!
mic2377 is offline   Reply With Quote
Old 07-06-08, 06:49 PM   #2
BenLi
Hardrocker
 
Join Date: Jul 2007
Bikes:
Posts: 1,569
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by mic2377 View Post
Factory says fork should be serviced every 40 hours of riding.
Seriously? That's ridiculous.
BenLi is offline   Reply With Quote
Old 07-06-08, 07:31 PM   #3
mtnbiker66
Old School Rad
 
mtnbiker66's Avatar
 
Join Date: Sep 2004
Location: The old Mountains
Bikes: Blur LT
Posts: 8,212
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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......
mtnbiker66 is offline   Reply With Quote
Old 07-06-08, 07:44 PM   #4
scrublover
Te mortuo heres tibi sim?
 
scrublover's Avatar
 
Join Date: Aug 2004
Location: East coast
Bikes: hardtail, squishy, fixed roadie, fixed crosser
Posts: 3,486
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
scrublover is offline   Reply With Quote
Old 07-07-08, 06:48 AM   #5
mic2377
Senior Member
Thread Starter
 
Join Date: May 2007
Bikes:
Posts: 207
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
mic2377 is offline   Reply With Quote
Old 07-07-08, 07:46 AM   #6
mtnbiker66
Old School Rad
 
mtnbiker66's Avatar
 
Join Date: Sep 2004
Location: The old Mountains
Bikes: Blur LT
Posts: 8,212
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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......
mtnbiker66 is offline   Reply With Quote
Old 07-07-08, 09:40 AM   #7
Svr
Senior Member
 
Svr's Avatar
 
Join Date: Dec 2005
Location: Atlanta, GA
Bikes:
Posts: 1,223
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
Svr is offline   Reply With Quote
Old 07-07-08, 11:23 AM   #8
scrublover
Te mortuo heres tibi sim?
 
scrublover's Avatar
 
Join Date: Aug 2004
Location: East coast
Bikes: hardtail, squishy, fixed roadie, fixed crosser
Posts: 3,486
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
scrublover is offline   Reply With Quote
Old 07-07-08, 11:54 AM   #9
Chris_F
World's slowest cyclist.
 
Join Date: Oct 2007
Location: Londonderry, NH
Bikes: Cannondale CAAD5 and Cannondale Rush
Posts: 1,353
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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).
Chris_F is offline   Reply With Quote
Old 07-07-08, 03:19 PM   #10
mic2377
Senior Member
Thread Starter
 
Join Date: May 2007
Bikes:
Posts: 207
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
mic2377 is offline   Reply With Quote
Old 07-07-08, 03:55 PM   #11
mcoine
Senior Member
 
Join Date: Dec 2005
Location: southern oregon
Bikes:
Posts: 2,631
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
mcoine is offline   Reply With Quote
Old 07-07-08, 05:46 PM   #12
mic2377
Senior Member
Thread Starter
 
Join Date: May 2007
Bikes:
Posts: 207
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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...
mic2377 is offline   Reply With Quote
Old 07-07-08, 06:48 PM   #13
ed 
.
 
ed's Avatar
 
Join Date: Oct 2005
Location: The Summit of Lee
Bikes: Hecklah
Posts: 10,932
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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...

ed is offline   Reply With Quote
Old 07-08-08, 12:05 AM   #14
Zetal
Specialized Rider
 
Join Date: May 2005
Location: Nebraska
Bikes: '08 Specialized Rockhopper Disc
Posts: 38
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
Zetal is offline   Reply With Quote
Old 07-08-08, 03:59 AM   #15
fosmith
my brain hurts!
 
fosmith's Avatar
 
Join Date: Mar 2008
Location: Oak Knoll
Bikes: Numerous bicycles.
Posts: 680
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
fosmith is offline   Reply With Quote
Old 07-08-08, 12:23 PM   #16
zlr101
Senior Member
 
Join Date: Jan 2008
Location: Pennsylvania
Bikes: 2001 f2000sx 2002 r2000si
Posts: 140
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
zlr101 is offline   Reply With Quote
Old 07-08-08, 08:16 PM   #17
DirtPedalerB
unofficial roadie
 
DirtPedalerB's Avatar
 
Join Date: Jul 2006
Location: Out in the woods you see
Bikes: 2004 Marin bobcat trail, 2006 trek fuel ex7, 2007 iron horse road bike
Posts: 1,440
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
DirtPedalerB is offline   Reply With Quote
Old 07-08-08, 10:12 PM   #18
mic2377
Senior Member
Thread Starter
 
Join Date: May 2007
Bikes:
Posts: 207
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
mic2377 is offline   Reply With Quote
Old 07-09-08, 01:34 AM   #19
embankmentlb
Senior Member
 
embankmentlb's Avatar
 
Join Date: May 2008
Location: North, Ga.
Bikes: Bernard Hinault Look - 1986 tour winner, Guerciotti, Various Klein's & Panasonic's
Posts: 1,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
I have not serviced my fork sense new. That was 8 years ago. Guess that's why i don't have a Dale.
embankmentlb is offline   Reply With Quote
Old 07-09-08, 06:03 AM   #20
Chris_F
World's slowest cyclist.
 
Join Date: Oct 2007
Location: Londonderry, NH
Bikes: Cannondale CAAD5 and Cannondale Rush
Posts: 1,353
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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?
Chris_F is offline   Reply With Quote
Old 07-09-08, 06:14 AM   #21
Svr
Senior Member
 
Svr's Avatar
 
Join Date: Dec 2005
Location: Atlanta, GA
Bikes:
Posts: 1,223
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
Svr is offline   Reply With Quote
Old 07-09-08, 08:32 PM   #22
DirtPedalerB
unofficial roadie
 
DirtPedalerB's Avatar
 
Join Date: Jul 2006
Location: Out in the woods you see
Bikes: 2004 Marin bobcat trail, 2006 trek fuel ex7, 2007 iron horse road bike
Posts: 1,440
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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
DirtPedalerB is offline   Reply With Quote
Old 07-10-08, 11:29 AM   #23
RIC0
PBR Racing
 
RIC0's Avatar
 
Join Date: Aug 2006
Location: Wifes $hit List
Bikes: Santa Cruz and Cannondale
Posts: 1,026
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
fork oil breaks down, which in turn, increases friction on parts, which in turn wear out faster. Forks need to be serviced.
RIC0 is offline   Reply With Quote
Old 07-12-08, 12:57 PM   #24
DirtPedalerB
unofficial roadie
 
DirtPedalerB's Avatar
 
Join Date: Jul 2006
Location: Out in the woods you see
Bikes: 2004 Marin bobcat trail, 2006 trek fuel ex7, 2007 iron horse road bike
Posts: 1,440
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
DirtPedalerB is offline   Reply With Quote
Old 07-12-08, 02:25 PM   #25
scrublover
Te mortuo heres tibi sim?
 
scrublover's Avatar
 
Join Date: Aug 2004
Location: East coast
Bikes: hardtail, squishy, fixed roadie, fixed crosser
Posts: 3,486
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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.
scrublover is offline   Reply With Quote
Reply


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



All times are GMT -6. The time now is 08:29 PM.