A pinging sound...

Jon71 · May 2007

...is what I heard tonight when I took my 1 day old Stumpjumper FSR comp out for a test spin. It sounds like a pin/nail being struck against metal, a ping sound. It seems to only happen when pedaling and with and without the rear shock locked. I thought maybe a cable but the only cables are the ones to the front and rear mech as the others are hydraulic hoses, but I put pressure on them when the sound started and it continued.

It comes and goes and seems to happen mostly in gears 7,8 and 9 so I am maybe thinking it's the chain slapping off the front mech and reverberating through the tubing?

Have any other SJ FSR owners had this happen and should I take back to the shop for them to have a look at? Or any other ideas?

Cheers

nicklouse · May 2007

could be anything. when you say 7,8,9 is this with the front small cog in use? not recomended combination on any bike. same as bigring and big cogs at the back.

some times the spokes will ping on first use as they straighten out.

give it a bit and see if it is your miss use of the gears before poping back to the shop but if it is really that annoying i am sure they would be happy to show you where your are going wrong or fix anything that has been set up incorrctly. BUT dont go in there with the wrong attitude.

nick
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Jon71 · May 2007

No, not using the granny gear, just using the middle ring up front.

I've been mountain biking for about 14 years and have had many bikes and have never heard this noise before! Don't think it's the spokes as it definately seems to be coming from the BB/crank/front mech area but is hard to say as if I stop the noise stops! I cannot replicate it off the bike and spinning the cranks/wheel.

I will give it a few days to see if it is just 'newness'. Thanks for the advice.

tmg · May 2007

Jon71, I have the same problem, a kinda tinging noise just as the foot descends on each revolution, stops when I don't pedal and comes and goes. What kind of Crank/BB you got on yours?

nicklouse · May 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Jon71

No, not using the granny gear, just using the middle ring up front.

I've been mountain biking for about 14 years and have had many bikes and have never heard this noise before! Don't think it's the spokes as it definately seems to be coming from the BB/crank/front mech area but is hard to say as if I stop the noise stops! I cannot replicate it off the bike and spinning the cranks/wheel.

I will give it a few days to see if it is just 'newness'. Thanks for the advice.
<hr height="1" noshade id="quote"></blockquote id="quote">

is it the chain catching on the lifting pins on the big ring? i had that on one bike but only in the 9th cog while in the middle ring.

nick
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lugsey2k5 · May 2007

my bike recently started doing some thing simialr but its because my bb is dead and needs replacing it could be that. u could also take it bak to were u got it from have them look at it

Jon71 · May 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by nicklouse

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Jon71

No, not using the granny gear, just using the middle ring up front.

I've been mountain biking for about 14 years and have had many bikes and have never heard this noise before! Don't think it's the spokes as it definately seems to be coming from the BB/crank/front mech area but is hard to say as if I stop the noise stops! I cannot replicate it off the bike and spinning the cranks/wheel.

I will give it a few days to see if it is just 'newness'. Thanks for the advice.
<hr height="1" noshade id="quote"></blockquote id="quote">

is it the chain catching on the lifting pins on the big ring? i had that on one bike but only in the 9th cog while in the middle ring.

nick

<hr height="1" noshade id="quote"></blockquote id="quote">

It could be. But it has only happened in the middle ring, could still happen though?

Don't think it's the BB but it's a Truvativ Stylo crank and Truvativ GXP BB (according to the blurb), if it as the BB it would occur all the time? I will take the bike out tomorrow and the next couple of days and see if it still happens.

How long has yours been doing it TMG? From new or just started?

nicklouse · May 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Jon71

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by nicklouse

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Jon71

No, not using the granny gear, just using the middle ring up front.

I've been mountain biking for about 14 years and have had many bikes and have never heard this noise before! Don't think it's the spokes as it definately seems to be coming from the BB/crank/front mech area but is hard to say as if I stop the noise stops! I cannot replicate it off the bike and spinning the cranks/wheel.

I will give it a few days to see if it is just 'newness'. Thanks for the advice.
<hr height="1" noshade id="quote"></blockquote id="quote">

is it the chain catching on the lifting pins on the big ring? i had that on one bike but only in the 9th cog while in the middle ring.

nick

<hr height="1" noshade id="quote"></blockquote id="quote">

It could be. But it has only happened in the middle ring, could still happen though?

Don't think it's the BB but it's a Truvativ Stylo crank and Truvativ GXP BB (according to the blurb), if it as the BB it would occur all the time? I will take the bike out tomorrow and the next couple of days and see if it still happens.

How long has yours been doing it TMG? From new or just started?
<hr height="1" noshade id="quote"></blockquote id="quote">

<blockquote id="quote">quote:<hr height="1" noshade id="quote">But it has only happened in the middle ring<hr height="1" noshade id="quote"></blockquote id="quote">and that is the only ring it could happen in.

nick
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Jon71 · May 2007

After riding it today the pinging occurs in all chainrings so I went to the shop and I'm taking it in on Tuesday so hopefully I will have answer soon.

Actually on a side note, whilst I was in the owner came up to and gave me a book, 'Stumpjumper - 25 years of mountain biking' hardbacked and very nice. A Specialized rep had given him 2 so he passed one on to me!

ride_whenever · May 2007

What shoes are you wearing, it isn't a strap or clip or shoelace or something pinging a part of the frame?

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Jon71 · May 2007

No, SpuDs and shoes have velcro straps so nothing really touching the frame. The shop are good so I should know next week, and so then kids won't run into the street thinking the ice cream vans coming with it's tinkly bell!! lol

tmg · May 2007

let me know how you get on jon71, its been happening to me for a couple of weeks now so I'd be interested to see what the bike shop tell you when you take it in

timberjack · May 2007

i dont know if its the same but i have a stumpy comp the same as yours but mine is 6 months old, i have had no real problems apart from a little bit of chain suck until last wednesday. We did the MBR cheviot hard route and about 5 miles from the end my bike developed a creak so i brought it home and washed it and tried to locate the creak, it was worse the harder you pedalled so i thought it was the crank or the seat post, but i eventually narrowed it down to the headset area i have removed the headset and greased it i have regreased and tightened all the bolts and its still there so i am taking it back to the shop on monday

Anonymous · May 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by timberjack

i dont know if its the same but i have a stumpy comp the same as yours but mine is 6 months old, i have had no real problems apart from a little bit of chain suck until last wednesday. We did the MBR cheviot hard route and about 5 miles from the end my bike developed a creak so i brought it home and washed it and tried to locate the creak, it was worse the harder you pedalled so i thought it was the crank or the seat post, but i eventually narrowed it down to the headset area i have removed the headset and greased it i have regreased and tightened all the bolts and its still there so i am taking it back to the shop on monday
<hr height="1" noshade id="quote"></blockquote id="quote">

i had a similar noise from my stumpy fsr, i couldnt figure out what the noise was for ages until i narrowed it down to the main pivot. i dis-assembled it and put it back together and the noise was gone, i thought the noise was from everywhere, bb, headset, cranks!!!

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Jon71 · May 2007

Well took it in to the shop today and told them that I actually suspected the discs on the disc brake as when I flicked it the very same noise occured. They test rode it and stripped down the BB and tried all the usual suspects but also thought it was the discs. There is a 203mm one on the front and a 185mm on the back and it seems to be vibrating through the pedal force of the cranks and pinging. Fortunately it only does it occasionaly and I am glad it is not anything serious and really nothing can be done about it.

These are the first disc brakes I have had so it's no wonder I have never had the pinging noise with other bikes!!

pitmonkey · May 2007

Did the shop give you any tips on reducing the noise. I've just posted a new topic 'DISC BRAKE NOISE - ONLY WHEN I RIDE' with the same problem but worse by the sounds of things.

Eat Pie - Ride Bikes

bikerboywill · May 2007

is it wen u change gear casue if it is its the chain going to the nxt cog

Jon71 · May 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by pitmonkey

Did the shop give you any tips on reducing the noise. I've just posted a new topic 'DISC BRAKE NOISE - ONLY WHEN I RIDE' with the same problem but worse by the sounds of things.

Eat Pie - Ride Bikes
<hr height="1" noshade id="quote"></blockquote id="quote">

Just read your thread Pitmonkey and it sounds like the same problem. The bike shop did not offer any advice in how to fix it, maybe reducing the size of the rotors. I presume your rotors are large also? At the moment it does not happen all the time and only seems to happen when on the road, but time will tell I suppose!

spyinthecamp · June 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">I have the same problem, a kinda tinging noise just as the foot descends on each revolution, stops when I don't pedal and comes and goes. What kind of Crank/BB you got on yours?<hr height="1" noshade id="quote"></blockquote id="quote">

tmg - have you sorted this problem out? I have a standard 2006 FSR comp and has recently started with a ting / creak when pedalling. I think it is the BB as I have stripped everything else and rebuilt, but the non drive side bearing has lost its grease and seems worn compared to the other side which looks and feels like new.

Going to try new shells as the noise drives me insane everytime I pedal. Not too familiar with BB's as my previous bike (Marin) had no problems after a good few thousand miles, whereas this one has only done about 700.

Cheers

Simon

tmg · June 2007

The noise on mine seems to be more prominent after its been cleaned and then disappears as the bike gets more dirty, strange. I've bought some new BB's and will give the bike a wash and see if the tinging comes back, if it does I'll swap out the BB

Drfabulous0 · June 2007

This could be something really silly, is the end of the cable to the front derailleur catching on the crank arm at all, I have seen it a few times on a new bike where it is too long and catches the cranks every revolution then pings against the frame. Also happens sometimes with a rear V brake cable catching on your leg on a small frame. If this is the case simply cut it a bit shorter and fit a new cable end. It's so simple that the bike shop can overlook it and be stumped for hours.

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spyinthecamp · June 2007

Drfabulous0 - Did think of this as had that problem a good few years ago, but my noise also occurs when rocking the pedals back and forth. Tried finding replacement BB casings today on the net and seem like rocking horse crap [:(] unless anyone knows any others that are compatible?

TMG - Did you get GXP casings, if so where did you get them from?

tmg · June 2007

I have XTR so just gor the replacement BB from CRC

A pinging sound...

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