Strange popping nose from Superfly drive train...

This doesn't help you, but I noticed the same thing on an 09 Fly last year. I demoed it when the Trek/Fisher demo rolled through. They just had picked up the 09s and the Superfly I rode was doing the same thing. One question, how much do you weight?

6'2' 200 lbs. Huh, good to know. We initial had a seat post noise that we corrected with some anti-seize. It was more of a cracking sound. This one is definately out of the drive train and more of a lound metalic pop. I guess i will have to go through the drive train one piece and a time until I find it.

Brew

have your dealer replace your wheel under warranty. the freehub has too thick of grease in it causing the pawls to stick. mine did the same thing. swapped the wheel and no more problems.

My 09 SuperFly does the same thing. I have a Stumpjumper Pro CF and a Scott RC-10 CF as well and they all do the same thing under load.

The CF frame seems to resinate and amplify the sound so it sounds worse than it is. Both bike are fine so I just live with the sound.....

Interesting info. It doesn't seem to be hurting anything but it is annoying as all get out. I will check into the wheel. Since I work for the shop where I bought the bike it shouldn't be too difficult to get a warranty wheel if need be.

Brew

See I thought it was my size, 5'11" and 215lbs. Had me just thinking that I was too heavy for the light drivetrain. However the wheel info makes since. I noticed it doing it on steep climbs and on the first initial pedal stroke taking off.

Big T42 said:

My 09 SuperFly does the same thing. I have a Stumpjumper Pro CF and a Scott RC-10 CF as well and they all do the same thing under load.

The CF frame seems to resinate and amplify the sound so it sounds worse than it is. Both bike are fine so I just live with the sound.....

Click to expand...

Oohh and I also noticed that when the chain is nice and clean and lubed the "noise" it is far less pronounced......

Yup it was the pawls. The grease in there looked like a mix of concrete and mud, disgusting stuff. Replaced it with some Phil Wood oil. It also looks like the spring/lock ring that holds the pawls in place wasn't working properly. A little adjusting and it is better. I will find out this evening, I'm going for a nice long ride. If it is still doing it we will get the wheel warantied.

Brew

Brewboy74 said:

Yup it was the pawls. The grease in there looked like a mix of concrete and mud, disgusting stuff. Replaced it with some Phil Wood oil. It also looks like the spring/lock ring that holds the pawls in place wasn't working properly. A little adjusting and it is better. I will find out this evening, I'm going for a nice long ride. If it is still doing it we will get the wheel warantied.

Brew

Click to expand...

Dude, there's been a service bulletin out about the 09 RXL's since April 29th. Check it out. The early runs have a freehub bore issue along with the grease thing.

If anyone else here has this problem, just bring it into your Trek dealer (a reputable one, that is). We know about it. You shouldn't have to be dealing with this yourselves.

jason745 said:

Dude, there's been a service bulletin out about the 09 RXL's since April 29th. Check it out. The early runs have a freehub bore issue along with the grease thing.

If anyone else here has this problem, just bring it into your Trek dealer (a reputable one, that is). We know about it. You shouldn't have to be dealing with this yourselves.

Click to expand...

I guess I work part time for an unreputable one......thanks for the underhanded comment. I appreciate the info just not the manner you delivered it. I will check and see if we recieved that particular service bulletin.........

After a bit of looking on some of the boards it looks like Trek/GF is sending replacement wheels with the same sludge in the early runs so we as in the shop will have to pull the free hub body and replace the grease with a lighter oil. They may very well have fixed the bore issue but the concrete they are putting in the freehub doesn't help matters any.

are there any recalls on the 09 mako's? sorry to thread jack but my mako does the same thing sometimes when i take of in a higher gear. it could just be that i bought a cheaper bike and they do that lol

Went in to the shop to check for the serivce bulletin. I found it on the Trek Dealer website.

Hey Jason745, guess what the first thing it says to do.........tear down the hub and remove some of the grease

It's great to work in a shop where they know how to fix things without reading a service bulletin. You only need to waranty it if the hub has the bore issue. I have two rides on it since fixing the grease issue and it is starting to pop again, so off for waranty it goes.

Brew

That's a drag, man. I hope they can at least get a wheel to you quickly.

I have a feeling there may have unfortunately been some hasty design decisions made once they found out that DT would no longer be a supplier. Obviously, you'll never have to worry about getting a new wheel, but it would be nice if they can get something sorted out for 2010.

Update: I got a replacement wheel in 2 days. +1 for Trek/GF customer service. The bad news is that it is a 2010 wheel which is black. My wheels are gun metal gray. We are contacting the Trek rep to see if we can either get a new black front wheel or if they still have any of the gun metal gray rears that don't have the free hub issues.

Brew

My wheel is in the shop.......

Spoke to my LBS today and they confirmed they now have the bulletin and to bring the SuperFly right in.

Did that and they will check out the hub and either replace the grease or the whole wheel no questions asked...... :thumbsup:

Get the bike back Thursday ready for the weekend...

Extremely happy with the LBS service. Great bunch of guys & gals...

Back on the road again....

Got the de-greased rear hub back and went for a 30km ride today.....

So far so good (works like a real one...)....... :thumbsup:

Keep an eye on it. Mine started popping again after a couple of rides. I have a replacement for the rear but it's black so I am looking to get a black front to match. No word on that yet.

MMMmmm not quite fixed yet...

Yep you were right. Started popping again. Not as bad this time. Just dropped off at my LBS....

Rides fine just annoying noise.....

Sounds like replacement time. If they do replace it, it will be a black wheel. Trek will replace the front to match it but it isn't free. I am going to fork over the money to have the matching black wheelset.