Creakings, clickings, tickings, clankings and knockings.
Comments
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Di2 or mechanical ? There's a certain way to do di2benviermann said:I recently bought a new road bike with an 11 Speed Ultegra Drivetrain.
The drivetrain has been really noisy, I cant really figure out what is wrong. It shifts properly and no gear skipping whatsoever.
Anyone has any idea what this noise could be? thx
Sounds like you need your gears indexed properlyaldopretoria said:Just bought a used road bike from a bike shop about 6 months ago.
I've been getting some weird noises recently from the chain and on some gears it was changing into gear and then slipping out after a few turns of the crank.
It gotten worse and now it is doing this in every gear at almost exactly two rotations of the crank, which is obviously pain in the censored to cycle.
Wondering what the exact problem is or how to fault find it.
Ideas/suggestions would be appreciated
Undo the cable tension bolt ,screw the barrel adjuster right in
Re connect the cable by keeping it taught but not pulling in the mech
Tighten the bolt to reconnect
Shift up ,if it moves up your good
If not use the barrel adjuster until it shifts up
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I had a belter a couple of weeks ago. Riding along I heard something ping off the downtube and then off my shin. Thereafter a curious ticking noise. Watched the chain for a couple of revolutions - no sign of any errant links. Ticking once every rotation of the pedals whether seated or standing and irrespective of which sprocket or chainring. Convinced the BB was on the way out, I soft pedalled home and gave it a good looking at on the workstand. Was about to start faffing with chainring bolts when I spotted a sizeable lump of flint held captive between the chainring spider and the BB but free to clonk about as it rotated. Thought I'd have to take the crank off to free it, but knowing it got in there with the crank in situ I accepted the challenge and
eventually manipulated it out again. Think I was lucky it didn't do any damage to the carbon tbh1 -
Bike developed a really annoying clatter/snapping noise - ONLY when ridden on rougher road surfaces, and present whether under power or not, seated or standing etc.
Sounded like all or any of:
(a) A spoke under torsion suddenly snapping back into line
(b) chain rattling against stay
(c) chain 'hitting' rear sprocket teeth when RD flexes up and down
(d) maybe what a break in a carbon frame sounds like when it flexes!
(e) Maybe a cable seating in a ferrule
Had the entire bike apart.
Turned out to be the lower headset bearing.
Only found it when wheeling bike in and lifting over a step by the bars, inadvertently turning bars through 90 deg. Loud snap noise. Rotated them again ten times, no sound. Lifted bike up by top tube a few inches off of ground, bounced it several times while turning bars. Suddenly, loud snap again.
Periodic, but repeatable. On the road the noise propagated right through frame/forks so harder to locate and surprisingly loud.
There was absolutely no detectable play or noise when turned, aside this occasional twang/snap.
Totally silent again now.
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Haha, some satisfying detective work!
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