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Will a repaired Carbon biike be OK for 202 STP ride?

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Will a repaired Carbon biike be OK for 202 STP ride?

Old 01-29-10, 09:20 PM
  #1  
vrkelley
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Will a repaired Carbon biike be OK for 202 STP ride?

I'm new to distance riding and training for the Seattle to Portland ride on a 2002 Trek 5200. The bike has close to 25K of commuting miles on it now. The shop discovered that the builder cut the steerer too short and it was too dangerous to ride. So in 2007, they put in a steel extender (that works with carbon) and sold me a new fork.

The front is safe but noticibly jarring with more road noise than the original. The padded gloves work if I hold on to the hoods lightly. But on serious climbs or over a rough road my fingers are sore afterwards.

I'm working out mostly on a trainer right now. Do you think I'll be able to ride this bike 202 miles without damaging my own wrists or palms? Do I need a new bike?
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Old 01-29-10, 10:21 PM
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What size tire are you using on the front wheel, and what pressure are you pumping it up to? You might just want lower pressure and/or a bigger tire to smooth out the vibrations.

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Old 01-30-10, 04:42 AM
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Thanks I'll look into that. It's a 700CM and I run at a 125PSI
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Old 01-30-10, 02:56 PM
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I'm baffled as to what this 'steel extender' is for, and if they installed a new fork, why you still need it. Wouldn't a new fork with a properly cut steerer eliminate any necessity for an extender?

Anyhow, you should be fine on any bike that is comfortable for you. Sounds like what you need to do is some fine turning of your current ride to get things set for the STP. As suggested, lower pressure, higher volume tires may help. (125psi leads me to think you're rolling a 23mm, and you can probably fit a 25mm or even a 26mm on that bike.)
Currently I use a 28mm tire at 115psi (I'm a big dude so I need the extra tire pressure), and I'm considering moving up to a 32mm tire for the upcoming season; however, there are plenty of people in the Seattle randos using 23 and 25mm tires.
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Old 01-30-10, 05:44 PM
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You have an uncomfortable bike. No its not ok.
I assume your handlebars are as low as possible (perhaps lower than possible) which might be putting too much weight on your hands. Get a fit done.

Not sure whats up with the jarring and why the fix made it worse. Maybe your LBS sold you a bodge fix? Maybe a second opinion from another LBS?
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Old 01-31-10, 12:21 PM
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Hmmm. The Ritchey Carbon fork should ride like butter. Maybe Gre## Bellevue did me wrong. It was an expensive repair. More than likely there's some adjustments to be made. Yes the tires are 25mm Armadillo.
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Old 02-01-10, 02:39 PM
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Armadillos are known for being rougher than other tires.

I am also baffled by your "repair". A short steer tube can be fixed with a new fork...and can be extended even further with a bolt on steer tube extender...maybe that is what they put on?

Either way, once the bike rides comfortably, you will be fine.

BTW, I have done STP in one day twice....it is my favorite organized ride I have ever done. You will love it!!!!
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Old 02-01-10, 04:38 PM
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What sort of fork? Every bike I've ridden with a carbon fork, even a cheap fork, has given me a very nice ride up front, including bikes with stiff aluminum frames.

That "extender" . . . Do you mean that they put on some sort of extender to get your hands up high? If so, take that bike back and get rid of that thing. You want your stem down very close to the head tube/headset, preferably right on it, or no more than 1" above it.

Your bike is an extremely comfortable model for the purpose. I've ridden a 5200 on many one-day STPs, RAMRODS, and brevets up to 400 kilometers. It's a dream for distance riding.

I also don't get the story of how a factory bike with 25K on it was too dangerous to ride because the fork was cut off too short. BTW, my 5200 has about 50K on it, no signs of fatigue.

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Old 02-03-10, 08:57 AM
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The handlebars are about 1" below the saddle. Sounds to me like the fork was cut too short also. Without that extender the bars would be way too low for me. The bike was labeled unsafe because the original extender wasn't the right one for carbon and they couldn't get a correct size. I would have had to sign something that the shop was not responsible. The fork did not have any fractures in it however. Maybe I'll take it somewhere else for a 2nd opinion.

Originally Posted by Sawtooth View Post
Armadillos are known for being rougher than other tires.

I am also baffled by your "repair". A short steer tube can be fixed with a new fork...and can be extended even further with a bolt on steer tube extender...maybe that is what they put on?

Either way, once the bike rides comfortably, you will be fine.

BTW, I have done STP in one day twice....it is my favorite organized ride I have ever done. You will love it!!!!
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Old 02-04-10, 12:42 AM
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Originally Posted by vrkelley View Post
. Maybe Gre## Bellevue did me wrong.
As a Gre## customer myself, I would second your suspicion. In my experience, they are inconsistent with their wrenching skills and advice on complex fixes.
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Old 02-04-10, 01:07 PM
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Originally Posted by vrkelley View Post
The handlebars are about 1" below the saddle. Sounds to me like the fork was cut too short also. Without that extender the bars would be way too low for me. The bike was labeled unsafe because the original extender wasn't the right one for carbon and they couldn't get a correct size. I would have had to sign something that the shop was not responsible. The fork did not have any fractures in it however. Maybe I'll take it somewhere else for a 2nd opinion.
OK, I think I kind of get it. Personally, I would probably NEVER run a steer tube extender on a carbon steer tube. So, if your original fork had a carbon steer tube, I might agree that it would be "unsafe" for my tastes until I got a new fork with an aluminum steer tube.
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Old 02-04-10, 03:05 PM
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I'm still trying to wrap my brain around this extender idea. Maybe I'm missing something...

Problem: Original fork had the steerer cut too short, no room for spacers, bars are too low.
Solution 1: New fork, cut the steerer to proper length with some spacers on there.
Solution 2: Get a new stem with a taller rise.

My Cross Check came with a factory cut steerer and I felt hunched over on it, so I bought a 25-degree rise stem to compensate for the inability to stack a bunch of spacers on it. Works just fine.
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Old 02-04-10, 08:01 PM
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https://farm3.static.flickr.com/2582/...8d667fc8_o.jpg

Originally Posted by CliftonGK1 View Post
I'm still trying to wrap my brain around this extender idea. Maybe I'm missing something...

[.
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Old 02-04-10, 08:41 PM
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Wow, great argument for good old-fashioned threaded headsets. Or maybe starting with a bigger frame. How long is the seatpost on that bike?

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Old 02-04-10, 09:38 PM
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Is that the bike you want to do STP on? On the surface, it looks like someone sold you a bike that is too small. Of course you could have a different than normal body style that will make that work. Those aren't the best handlebars for riding distances on. My wrists would be killing me too.
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Old 02-04-10, 09:53 PM
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Homeyba,

That picture wasn't from the OP. I think it was just posted as an example of what an extender is. I'll take a Nitto Technomic.
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Old 02-04-10, 10:36 PM
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Originally Posted by khearn View Post
Homeyba,

That picture wasn't from the OP. I think it was just posted as an example of what an extender is. I'll take a Nitto Technomic.
OOPs, shame on me!. Personally I wouldn't take either one. I'd take a bike that fit me properly in the first place.
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Old 02-04-10, 11:37 PM
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just a thought even though I don't own a carbon bike. Could it be possible that you got use to the vibration deafening of the carbon steerer then when it went to the steel extender vibration was transmitted more and thus you're just simply not use to it? If so then the problem is you, you need to get use to it. In the mean time wear padded gloves and use cork handlebar tape.
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Old 02-05-10, 02:41 PM
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I'm aware of what they are. Just trying to figure out why any competent shop hand would suggest that sort of kludge vs. either a new fork and some spacers, or a taller stem.
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