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  1. #1
    ArmySoldier
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    Creaking Question

    I actually have a couple questions. I have a 2001 Kona ManoMano that I bought used and needs some TLC as the previous owner rode the crap out of it but didn't take real good care of it. I only paid $100 for the bike so I can have the cash to upgrade I just don't really know which parts fit the bike. My goal is to do the work myself and save a little cash on labor in favor of better upgrades. First, I just had the old factory installed Truvativ Firex crank and BB replaced with a new Shimano Deore LX Hollowtech, however I still hear the creaking when I am pedaling. What else may be making that creaking noise?

    Second how do I tell what front DR I need? All that is says on the DR itself is DEORE, nothing else and I am trying to avoid taking it off until I get the new one to replace it. I would like to replace with all XTR components but don't know which ones will work. Rear DR was a bit easier so I got that already.

    Third, are the Shimano integrated shifter/brake levers worth the money? I really like the idea of having all in one like I do with my road bike, but would like to get others opinions before I drop a large wad of cash on them.

    Lastly, can anyone tell me if there is a rear shock with a lock out feature that will fit my bike. The current shock is a Fox Vanilla and is 6.5 inches from the center of the two mounting holes at either end. I have checked the Kona and fox site's, but most of what I was able to find does not list anything having to do with compatability.

    Thanks in advance
    Charles

  2. #2
    meb
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    Quote Originally Posted by Armysoldier10
    First, I just had the old factory installed Truvativ Firex crank and BB replaced with a new Shimano Deore LX Hollowtech, however I still hear the creaking when I am pedaling. What else may be making that creaking noise?
    Unfortunately, it may be a crank or a pedal axle getting ready to fail. Since you have a new set of cranks, I'd suspect the pedals.

    If you have spare pedals or pedals from another bike you could swap out the pedals and see if the noise disappears as a way of isolating the problem. If that doesn't work, you try swapping out the cranks.

    Left cranks seem to fail at low speed when you have both max torque and downward load, so there is less of a safety concern than the pedals which can fail at low or high speed. Because of the safety concerns of having a pedal axle snap, I'd check that first. I've broke three pedal axles since September, the last happenned about 3 weeks ago and my knee is still sore from the twist it took from the foot planting on the pavement at 10 mph.

    Bottom bracket could also be another source.

  3. #3
    cab horn
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    Check seatpost. Check everything.

  4. #4
    ArmySoldier
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    ok, what do you mean by "pedals may fail"? Like they will fall off? I'll go replace those ASAP. What about the fork will it make the same type of squeaking noise as the crank/bb/pedals/etc.? Can the fork be refurbished or do I need to buy new? If so can I replace the 80mm fork with a 100mm fork, I really like the feel of the one on my wifes bike, but didn't know if I could replace one with the other. I'm fairly new to working on this stuff myself so any help is appreciated.

  5. #5
    meb
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    Quote Originally Posted by Armysoldier10
    ok, what do you mean by "pedals may fail"? Like they will fall off? I'll go replace those ASAP. What about the fork will it make the same type of squeaking noise as the crank/bb/pedals/etc.? Can the fork be refurbished or do I need to buy new? If so can I replace the 80mm fork with a 100mm fork, I really like the feel of the one on my wifes bike, but didn't know if I could replace one with the other. I'm fairly new to working on this stuff myself so any help is appreciated.
    The axle spindle that threads into the crank can fail and gives creaking noises prior to failure when pedalling. They spindle tends to break just outside the crank leaving a threaded stub of under an inch seperated from the rest of the pedal. The break is near perpendicular to the outside of the spindle giving you stub that is cylindrically but for the hex or whatever wrench shape was selected for removal/installation. After failure, you can see telltale discoloration of metal fatigue at the failure point. When that failure happens the threaded portion remains in the crank and the pedal goes down to the pavement. Since your wife has a bike, try one then the other of her pedals and see if that eliminates the creak. I'd start with whichever downstroke makes the louder noise as a more likely candidate. If replacing the left and right pedals doesn't solve it, then it probably wasn't the pedals and can look elsewhere and return your wives pedals to her bike before she files for divorce. I'm 225 lbs and have been in the 235 lb vicinity most of this past year. The heavier the rider the more significant the risk of breaking these pedal axles. Bearings and platforms can also creak, but if you issolate the creaking problem to a particular pedal, I'd not risk it being the axle and replace the pedal.

    The fork, stem, and handle bars can make make creaking noises too. The handlebars and handlebar-stem connection can be fairly easy to diagnose as you can twist them about the bike's roll axis (the axis the top tube is on) when the bike is stationary thereby eliminating the other sounds sources such as bottom bracket, cranks, pedals, frame, seatpost. If it's the headset, you should see some unnecessary play when you force it, I'd also expect you'd hear it under braking.

    The seatpost and seat could be a source, but can be easily issolated if you try standing and find it's still there.

    Never having had front fork failures, I'm not sure what to expect there.

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