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Trek Domane 4.3 issues... ready to get rid of the damn bike

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Trek Domane 4.3 issues... ready to get rid of the damn bike

Old 08-10-15, 07:50 AM
  #26  
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Originally Posted by miamijim View Post
Just because you didnt hear it it doesnt mean it didnt happen.

Google is you friend.... Let me search for you...'florida bicycle fork death'

Northpinellas: Lawsuit: Bike defect led to cyclist's death on trail
Dick comment of the day.
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Old 08-10-15, 07:51 AM
  #27  
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Disassemble the Shimano RS500 crank and put blue thread lock on the crank bolts.

Poon
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Old 08-10-15, 08:13 AM
  #28  
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Originally Posted by Poonjabby View Post
Disassemble the Shimano RS500 crank and put blue thread lock on the crank bolts.

Poon
It doesn't have the RS500. Its got a 5800 105 crank. Its definitely the seat post. I pulled a seat post off of another bike and swapped it out... dead quiet.
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Old 08-10-15, 08:20 AM
  #29  
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Originally Posted by Brian25 View Post
Hi I am an ex Trek dealership owner and frame builder. I study geometry, and when you talk about chain slap in the small cogs, I do not know which chain ring it's happening in. I do not know much about the chain/ chain stay clearance, and I do not know how you feel about pedal/ shoe clearance for pedaling through corners, in my opinion the Domane jumped the shark for be, if you check out the bottom bracket height.... well it's dangerously low. I actually wrote Trek, and told them that I felt their bb hight was too low on that model. I don't know if that is a contributor to your chain slap issue. I would take the fork/ headset issue seriously. A guy in Florida DIED when his noisy fork gave way on him after having a store down there unable to determine the noise.
Hold on a second. Yes, five days have passed since you wrote the above and I'm guilty of raking old stuff up but you've got no right to blame the rider's death on a bike store. None at all.
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Old 08-10-15, 08:29 AM
  #30  
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It sounds like the area where the seat clamps the two saddle rails. I've run across this a few times, twice on one of my bikes. It's not all that rare. The problems are finding the source of the sound.

My seat on that bike has at close to 8,000 miles on it now. It happened twice. I took the seat off the seat post,carefully wiped the rails and the clamping surfaces before assembly. Then put a thin coating of grease just where the rails are clamped. Problem solved. My seat may do it again, now I know what to do.

Last edited by 2manybikes; 08-10-15 at 08:30 AM. Reason: spelling
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Old 08-10-15, 09:37 AM
  #31  
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Originally Posted by bres dad View Post
Ok, not quite ready but getting frustrated. I'm used to metal bikes and how they behave, not full on carbon fiber (lack of knowledge & experience may be part of the problem.) I bought a new 2015 Domane 4.3 from a local store that gave me a price break just as the price on the model went up a few hundred bucks. I previously had an aluminum Domane 2.0 that I upgraded the hell out of (actually weighed in less than then carbon fiber 4.3 that replaced it.) In short here are my issues and tell me what if anything can be done. First, other than the rims, the bike is stock save full 105 crank & brakes (had a cheap generic Shimano crank and tectro brakes).

Issue 1: Excessive chain slap. You hit a bump and the chain slaps on the stays. You stop pedaling all of a sudden and the chain slaps. Annoying and I've heard of issues where excessive chain slap can cause the carbon fiber to chip and crack on the chain stays. I put a lizard Skins protector on it to try to absorb some of the slapping. I never had this on my 2.0 (I assume it due to the larger chain stays and the chain in higher gears (smaller tooth gears, 11-12 teeth) and the fact there is virtually no tollerance where you can't put your finger between the chain & the chain stay.

Issue 2: Headset popping.
I've noticed a distinction in popping of the chain slamming on the chain stays and a popping in the front of the bike what seems like at random. I briefly explained the issue to the LBS I bought this new at and he siad it was just head set popping. Didn't elaborate and say if its something to be concerned with, normal or what. Is that normal? I know my steel or alumimum bikes don't do that so why is it doing that?

Issue 3: I've got a set of Vuelta Corsa SLR rims. I noticed tonight there is about 1/4 side to side play in the cassette & freehub. Have to wonder how much of the noise and occasional shift problems that accounts for. They're not the factory rim and can be changed back so I can send that in and get it fixed.

so please tell me hoe much of 1 & 2 might be normal or not. 3 is a matter of sending the rims back and get them fixed or replaced. Just seems like I shoulnd't be going through this much trouble for what I spent on this. Thoughts?
Dang, you're one frustrated poster. Do you like anything about your new Domane? Because to read your post, chain slap and headset noise are bad enough to justify returning the bike.

Chain slap, on a properly adjusted bike, has more to do with rider technique than frame material. Relying too heavily on the rear derailleur's ability to take up chain slack, any amount of chain, is a mistake of technique. Just because you got away with it on your aluminum frame Domane doesn't mean that you were shifting with good technique before, it just means you weren't concerned. Try to keep the bike in the large chainring when descending (because that's were you'll most notice a bouncing chain) so that the chainring takes up the slack, not the derailleur. Derailleur's manage slack, they don't tension the lower chain run so that it can't hit the chainstay. The large ring also moves the chain up and away from the chainstays which makes the chain less capable of slapping.

The comment about the frame being damaged by the chain isn't completely inaccurate. It is true that carbon fiber tubing isn't as resilient to piercing forces as aluminum tubing of similar dimensions but if the chain is actually cutting through the chainstay it is because of neglect, not inherent weakness.

Headset popping is going to happen because the headset is tasked with both steering AND shock absorption duties. You can't lock the headset down so tight that it constricts steering and you can't set it up so loose that it doesn't retain a firm connection regardless to what you are riding over. There has to be a happy medium where MOST of your riding benefits from the correct adjustment. Unfortunately, that leaves open the possibility that you'll get a popping noise when you run over the really big stuff. facing the handlebars, grasp the fork in one hand and the frame with the other and try to feel any looseness. You shouldn't be able to feel the fork move back and forth within the headtube. (Tip, this is easier if you've removed the front wheel.)

Comments about fork failure aren't particularly pertinent to you.

On the shifting side, if you're able to move the cassette, up and down on the freehub, 1/4" then something is wrong. (Tip, take the rear wheel off to inspect the cassette.) Either the cassette wasn't installed correctly or something else. Speculating at this stage doesn't seem very productive.
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Old 08-10-15, 09:39 AM
  #32  
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Originally Posted by bres dad View Post
navinsipe, are you talking about where the seat post connects to the seat? Do you have a photo? There are a few different styles of seat post that have been used on the Domane. This is mine.
I have the same seatpost. I am talking about the clamp/cradle that connects to the seat.
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Old 08-10-15, 09:49 AM
  #33  
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Are you sure your headset is popping? The reason I ask is I had a rattling noise up front but it was a loose quick release lever on the front wheel. The end of the cam wasn't peened over enough and the lever rattled.
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Old 08-10-15, 10:12 AM
  #34  
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Originally Posted by bres dad View Post
It doesn't have the RS500. Its got a 5800 105 crank. Its definitely the seat post. I pulled a seat post off of another bike and swapped it out... dead quiet.
There you go, done.
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Old 08-10-15, 11:17 AM
  #35  
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Cale, I love the bike, don't get me wrong. Some of these noises are irritating. Some of my research has said some of what I'm experiencing could be signs of larger problems, as well as simple annoyances. Trying to discern which is which. Fortunately, most of what I've found on the bike is more on the annoyance end. I've also learned that just because I had an aluminum frame Domane doesn't mean the carbon fiber Domane will react or behave the same. There have been some issues that popped up recently (the play in the cassette) and some that have been ongoing since I've had the bike (popping, chain slap.) The rear wheel issue was fixed pretty quick, next night after I encountered the problem. As far as the chain slap, part of that is the design of the bike (confirmed by the LBS.) If the rear is in the smallest few cogs, there is very little clearance between the stay and the chain. The slapping I've seen is on the top of the stay, not the non tensioned bottom (evident by the grease streaks on the top of the stay and none on the bottom). I've not had problems with the chain cutting into or chipping the stay but I did read some posts where that has been an issue. The chain protector I put on was for preventative maintenance more than anything else. When I ride, I will usually stay on the smaller chain ring until I get warmed up then usually use the larger. There aren't many hills on my normal routes (and the few I encounter are gentle rolling hills) but I usually use the larger chain ring on descent. I'll also be the first to admit my riding techniques aren't the best and I'm learning & changing as I go. I've also checked the fork as you've suggested and there's no adverse play or looseness. Your advice and tips are well noted... thanks

navinsipe, I'm planning on taking the seat clamp apart & greasing as you've recommended. I'm 90% sure that's what the issue is. I test rode the bike with a different seat & post from another bike and it was quiet.

Last edited by bres dad; 08-10-15 at 11:23 AM.
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Old 08-10-15, 01:08 PM
  #36  
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Originally Posted by bres dad View Post
Cale, I love the bike, don't get me wrong. Some of these noises are irritating. Some of my research has said some of what I'm experiencing could be signs of larger problems, as well as simple annoyances. Trying to discern which is which. Fortunately, most of what I've found on the bike is more on the annoyance end. I've also learned that just because I had an aluminum frame Domane doesn't mean the carbon fiber Domane will react or behave the same. There have been some issues that popped up recently (the play in the cassette) and some that have been ongoing since I've had the bike (popping, chain slap.) The rear wheel issue was fixed pretty quick, next night after I encountered the problem. As far as the chain slap, part of that is the design of the bike (confirmed by the LBS.) If the rear is in the smallest few cogs, there is very little clearance between the stay and the chain. The slapping I've seen is on the top of the stay, not the non tensioned bottom (evident by the grease streaks on the top of the stay and none on the bottom). I've not had problems with the chain cutting into or chipping the stay but I did read some posts where that has been an issue. The chain protector I put on was for preventative maintenance more than anything else. When I ride, I will usually stay on the smaller chain ring until I get warmed up then usually use the larger. There aren't many hills on my normal routes (and the few I encounter are gentle rolling hills) but I usually use the larger chain ring on descent. I'll also be the first to admit my riding techniques aren't the best and I'm learning & changing as I go. I've also checked the fork as you've suggested and there's no adverse play or looseness. Your advice and tips are well noted... thanks

navinsipe, I'm planning on taking the seat clamp apart & greasing as you've recommended. I'm 90% sure that's what the issue is. I test rode the bike with a different seat & post from another bike and it was quiet.
I appreciate the clarification your post provides, thanks! I don't mean to minimize your concerns. I'm not that familiar with the bike and too lazy to look it up. I hope the frame lets you enjoy riding without changing your style.
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Old 08-10-15, 04:18 PM
  #37  
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Originally Posted by jfowler85 View Post
Dick comment of the day.
Feel better? And it was last week. Not today......
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Old 08-11-15, 07:21 AM
  #38  
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Originally Posted by miamijim View Post
Feel better? And it was last week. Not today......
I did not specify which day.
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Old 08-13-15, 07:25 AM
  #39  
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The LBS wanted to check the bike out just in case there might be something that would be eligible for a warranty replacement. He said the seat post was banging around in the frame and ended up cutting down the seat post and applying more carbon paste (also noted it wasn't the first time he'd see this). I took it out on an 18 mile ride last night, including a half mile stretch I think the county used all of the chip & seal material they have on. Not one pop... I'm declaring victory and moving on. Thanks for the advice...
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Old 08-13-15, 07:42 AM
  #40  
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Originally Posted by bres dad View Post
The LBS wanted to check the bike out just in case there might be something that would be eligible for a warranty replacement. He said the seat post was banging around in the frame and ended up cutting down the seat post and applying more carbon paste (also noted it wasn't the first time he'd see this). I took it out on an 18 mile ride last night, including a half mile stretch I think the county used all of the chip & seal material they have on. Not one pop... I'm declaring victory and moving on. Thanks for the advice...
Awesome! I'm surprised you had time to post. Haha
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Old 04-28-17, 04:49 AM
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Hi Brian,

I have a domane 5.2, 22 months old with 7100 km on the clock. I live in Darwin, NT Australia where it is humid. The cap cover over the top tube has gone rusty and taken out some of the paint. I look after the bike, and clean it after almost every ride, and I think this sucks. I''m showing the dealer on Monday. Have you heard of this? Julian
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Old 04-28-17, 09:10 AM
  #42  
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I was riding my 2015 Domane 4.0 last summer when I hit a whopper of a pothole causing my chain to slap real hard. When the chain slapped a bobcat jumped out of the ditch into my path. I barely missed him as I sped by. That would have been a interesting story had I hit him with my bike.
Thats my chain slapping history with my Domane.
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