Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Let's do a Century jppe's Avatar
    Join Date
    Oct 2004
    Location
    North Carolina
    My Bikes
    Pinarello Prince/Campy SR; Cervelo R3/Sram Red; Trek 5900/Duraace, Cervelo P2C/Duraace
    Posts
    5,836
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    I learned something today

    I put Miss Lightweight in the shop yesterday. I was hearing a loud crack in the front of the bike when I'd hit a bump with the front wheel pretty hard and going along at a pretty fast speed. I had inspected the frame and fork repeatedly but never saw anything suspicious. However, I had never removed the fork and inspected the steerer tube. I really trust these guys and wanted a second opinion.

    They removed the fork and looked at everything and didn't find any issues. What I was hearing was probably the shifters opening and closing very quickly and making a loud cracking or whacking sound. My LBS guy said the Shimano shifters were known to do that. I'll certainly listen for that in mind in the future.

    At least now I'll have a little more piece of mind when screaming down a hill at 40-50 mph not worrying about the front fork collapsing on me.........too many other things to worry about!!!!

  2. #2
    Geezer Member Grampy™'s Avatar
    Join Date
    Sep 2003
    Location
    Cedar Rapids, IA
    My Bikes
    Airborne, LeMond, Bianchi CX, Volae Century, Redline 925 (fixed) and a Burley Tandem.
    Posts
    1,384
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yup, I've had 'em that did that. It was kind of annoying at first but I got used to it.... at least till this post.....
    Carpe who?

  3. #3
    Senior Curmudgeon
    Join Date
    Jan 2005
    Location
    Directly above the center of the earth
    My Bikes
    Electra Townie 1-speed with basket & fenders
    Posts
    3,304
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jppe
    I put Miss Lightweight in the shop yesterday...
    That's MS Lightweight to you, buddy!

  4. #4
    Senior Member NOS88's Avatar
    Join Date
    Mar 2006
    Location
    Montgomery County, Pennsylvania
    Posts
    6,302
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Sometimes I think having a hearing loss is a blessing. I simply don't hear those noises. On the other hand, I've recently had a frame fail on me....so... OK, I guess it is prudent to check out loud noises when you hear them... just wish I could hear more of the noises my bikes make. Of course my less than "kind to their old man" kids would say, "Dad, everytime you get on one of your bikes, it groans."

    I think it was wise to have the shop look into it. A second or third set of skilled eyes never hurts!
    A conclusion is the place where you got tired of thinking. - S. Wright

  5. #5
    Senior Member
    Join Date
    Jun 2005
    Location
    rockford, il
    My Bikes
    Trek 7700, C'dale R2000
    Posts
    2,646
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jppe

    At least now I'll have a little more piece of mind when screaming down a hill at 40-50 mph not worrying about the front fork collapsing on me.........too many other things to worry about!!!!
    40-50 MPH screaming down hill? Not this guy! I have serious problems with anything over 35. Too many bad pavements, sand, oil and other unexpected obstacles. This assumes roads not traveled before.
    I admire you, but no thank you.

  6. #6
    Senior Member
    Join Date
    Jun 2005
    Location
    North Carolina Piedmont
    My Bikes
    1984 Peugeot P8; 2006 Trek 5200
    Posts
    766
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I had noted the same sound on my 5200. Always on a nasty little road crack on a pretty good hill. I have looked and looked for a CF split or break but never found anything. Glad you looked further jppe I can be a little more at ease now.

  7. #7
    Senior Member
    Join Date
    Dec 2005
    Location
    Deep In The Heart
    My Bikes
    Seven Ti Tandem, Blue T12 tri bike, 92 Paramount, 93 Schwinn Mesa MTB, Trek 520 tourer
    Posts
    2,472
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by will dehne
    40-50 MPH screaming down hill? Not this guy! I have serious problems with anything over 35. Too many bad pavements, sand, oil and other unexpected obstacles. This assumes roads not traveled before.
    I admire you, but no thank you.
    +1
    Most economic fallacies derive from the tendency to assume that there is a fixed pie, that one party can gain only at the expense of another.....Milton Friedman

  8. #8
    Junior Member
    Join Date
    Dec 2004
    Location
    Hamilton New Zealand
    My Bikes
    Four and one experimental bike.
    Posts
    23
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I got seriously threatened by a cop here in New Zealand for motor pacing behind a bus while going downhill at just on 80m Ks an hour. My theory is simply this: If you fall off at any speed faster than running speed it is going to hurt, so falling at speed is only a matter of amount of hurt. If it is going to hurt any way, why not make it a hurt that at least will make the sunday papers?
    The cop seriously questioned my reasoning powers on that one, never saw the funny side of it at all, all hung up on mundane things like road safety and the like, poor bloke.Even went as far as reckoning I was insane!! Told him I had been riding for over 5 years and had been insane for years before getting on the bike. he said it showed. He finally said that the only reason he was not going to give me a ticket was cause he could not find anything to book me for (No regulations on speeding bikes evidentally) I still remember the adrenalin rush though, not that it would have helped if anything had actually gone wrong.
    I am a little slower on that particular hill now though (He may have found something to book me for)
    Cheers
    Cycler.

  9. #9
    Pedaled too far. Artkansas's Avatar
    Join Date
    Oct 2005
    Location
    La Petite Roche
    Posts
    12,020
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jppe
    I put Miss Lightweight in the shop yesterday. I was hearing a loud crack in the front of the bike when I'd hit a bump with the front wheel pretty hard and going along at a pretty fast speed. I had inspected the frame and fork repeatedly but never saw anything suspicious.
    I've had a frame come apart on me. It was silent. It was just that I noticed that the frame seemed to be soft and a few moments later I notice that the bicycle was getting lower. The downtube had separated from the bottom bracket.

  10. #10
    Let's do a Century jppe's Avatar
    Join Date
    Oct 2004
    Location
    North Carolina
    My Bikes
    Pinarello Prince/Campy SR; Cervelo R3/Sram Red; Trek 5900/Duraace, Cervelo P2C/Duraace
    Posts
    5,836
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Artkansas
    I've had a frame come apart on me. It was silent. It was just that I noticed that the frame seemed to be soft and a few moments later I notice that the bicycle was getting lower. The downtube had separated from the bottom bracket.
    Yikes!! What was the frame material?

Posting Permissions

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