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Old 03-06-08, 08:03 PM   #1
saltines
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New bike, few shifting problems.

Hey guys, just picked up my new bike. Its a Specialized Hardrock Comp. I have a few questions about the shifting. It doesn't shift easy into the highest cog in the rear or the highest in the front. I can make it shift by hold the shift nob down and putting a little more pressure on it. I want to adjust it so I can shift it on the fly. I know how to adjust the derailleur, but I'm not sure if this is the issue.
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Old 03-06-08, 08:05 PM   #2
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Are you cross-chaining?
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Old 03-06-08, 08:14 PM   #3
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Originally Posted by saltines View Post
Hey guys, just picked up my new bike. Its a Specialized Hardrock Comp. I have a few questions about the shifting. It doesn't shift easy into the highest cog in the rear or the highest in the front. I can make it shift by hold the shift nob down and putting a little more pressure on it. I want to adjust it so I can shift it on the fly. I know how to adjust the derailleur, but I'm not sure if this is the issue.
When shifting the front rings it's normal to have to hold the shifter down for a few extra moments.
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Old 03-06-08, 08:26 PM   #4
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Are you cross-chaining?
If by cross-chaining you mean being stuck between 2 gears then yes, but only on the front smallest cog, but only when downshifting.
Took it around the block after adjusting the height of the derailleur it self since it was to low. Anyway I found out the the rear will shift by holding the lever down for an extra second. You guys said this is normal. Well after switching through all the gears I noticed the the front wont shift into its low gear unless I stop the bike and turn the pedal slowly with my hand while holding down the trigger.
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Old 03-06-08, 08:32 PM   #5
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Time to go singlespeed.. haha
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Old 03-06-08, 08:33 PM   #6
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Did you buy this bike from an LBS? Shouldn't they have adjusted it properly?

On the other hand, if you are knowledgeable enough to set the front derailleur height, then I would think you would know enough to do the other geartrain adjustments.
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Old 03-06-08, 08:35 PM   #7
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It's common for new bikes to have issues like that.
Maybe try to re-adjust everything yourself,if that doesn't work go to your LBS.

Also, cross chaining is when your trying to ride like this for example, Innermost Front, Outter most Rear.
or vica versa. It doesn't work to well and shifting may be a little sloppy untill the chain is not crossed
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Old 03-06-08, 08:39 PM   #8
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Did you buy this bike from an LBS? Shouldn't they have adjusted it properly?

On the other hand, if you are knowledgeable enough to set the front derailleur height, then I would think you would know enough to do the other geartrain adjustments.
Bought it used from someone off craigslist. I just learned how to set the derailleur height and all. I'm still new to mountain bikes.
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Old 03-06-08, 08:41 PM   #9
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Originally Posted by Cheeto View Post
It's common for new bikes to have issues like that.
Maybe try to re-adjust everything yourself,if that doesn't work go to your LBS.

Also, cross chaining is when your trying to ride like this for example, Innermost Front, Outter most Rear.
or vica versa. It doesn't work to well and shifting may be a little sloppy untill the chain is not crossed
Is it? How many new bikes have you owned?
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Old 03-06-08, 08:45 PM   #10
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Bought it used from someone off craigslist. I just learned how to set the derailleur height and all. I'm still new to mountain bikes.
Go to parktool.com, find the bike map, find the derailleur adjustments, and start at the beginning. Do the front and the rear. I think Park has great instructions, and I've used that site many times.

Here's a link

Might want to change your cables while you're at it. Unless you know they are somewhat newish.
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Old 03-06-08, 08:45 PM   #11
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Is it? How many new bikes have you owned?
Well, Cheeto is right, but not by experience.

All of my bikes have shifting problems until the cables stretch, and my LBS tells me thats normal anyway.
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Old 03-06-08, 08:52 PM   #12
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Well, Cheeto is right, but not by experience.

All of my bikes have shifting problems
until the cables stretch, and my LBS tells me thats normal anyway.
Are we starting this again?
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Old 03-06-08, 08:56 PM   #13
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Are we starting this again?
What? All cables need to stretch and then be readjusted to make up for it.

And what's wrong with listening to my LBS?
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Old 03-06-08, 08:56 PM   #14
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Double Post. M'bad.
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Old 03-06-08, 09:00 PM   #15
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I may take it to the lbs next week to have them tune it and maybe teach me a few things about doing it myself next time. I read the directions on the park tool site but I'd also like to see it in person with a teacher. Thanks for the help guys, much appreciated.
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Old 03-06-08, 09:05 PM   #16
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Originally Posted by ProFail View Post
What? All cables need to stretch and then be readjusted to make up for it.

And what's wrong with listening to my LBS?

Little reading:

I learned something new today.

And there was just a recent thread on the topic as well.
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Old 03-06-08, 09:09 PM   #17
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Little reading:

I learned something new today.

And there was just a recent thread on the topic as well.
From what I read, everyone agrees that cables stretch. Did I miss something? Checking....
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Old 03-06-08, 09:13 PM   #18
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From what I read, everyone agrees that cables stretch. Did I miss something? Checking....
I used to as well. Read a little here, read a little there, and then it makes sense that the forces applied to a cable while shifting aren't enough to cause "stretch" in a steel wire.
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Old 03-06-08, 09:15 PM   #19
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I used to as well. Read a little here, read a little there, and then it makes sense that the forces applied to a cable while shifting aren't enough to cause "stretch" in a steel wire.
Well, obviously something is changing in the first month of a new bike. In the first month, everything goes out of wack. From then on it seems relatively stable.
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Old 03-06-08, 09:23 PM   #20
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Quote:
Originally Posted by LowCel View Post
It's more that the cable housings "seat" into the frame, cable housing ends, shifters, etc than it is that they "stretch".
Quote:
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not the inners stretching. it's the outer coating shrinking up a bit... getting pulled around as the cables and bike move. the inner wires are "compressionless" but the outer plastic coating is much less compression resistant.
Did you actually read it?
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Old 03-06-08, 09:25 PM   #21
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Did you actually read it?
Yes, but those were not the generally accepted theories in that thread.
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Old 03-06-08, 09:31 PM   #22
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Yes, but those were not the generally accepted theories in that thread.
Ok. But think about it. How much force is really being applied to the wire? It doesn't take much to move a derailleur. A cable doesn't stretch. I'm not saying people don't have shifting issues after a little while, but it's not due to the shifter cables stretching.
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Old 03-06-08, 09:33 PM   #23
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Originally Posted by LowCel View Post
It's more that the cable housings "seat" into the frame, cable housing ends, shifters, etc than it is that they "stretch".
Originally Posted by scrublover View Post
not the inners stretching. it's the outer coating shrinking up a bit... getting pulled around as the cables and bike move. the inner wires are "compressionless" but the outer plastic coating is much less compression resistant.

Profail-

The above posts quoted by rankin116 are quintessentially correct about what many folks have erroneously termed 'cable stretch' for many years.
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Old 03-06-08, 09:34 PM   #24
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My understanding is what Lowcel and scrublover described as posted above.
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Old 03-06-08, 09:36 PM   #25
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Ok. But think about it. How much force is really being applied to the wire? It doesn't take much to move a derailleur. A cable doesn't stretch. I'm not saying people don't have shifting issues after a little while, but it's not due to the shifter cables stretching.
Okay.

Do you have any links on this? Not that I don't beleive you, but this is new and fairly interesting, so I'd like to read some more on it to undertsnad better.
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