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Old 07-07-05, 05:54 PM   #1
Al K
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Much Better Shifting

Hi MTBers,

I removed 6 chain links and my rear gear shifting improved greatly: crisper shifting; gear skipping nearly eliminated; gear slips under pressure nearly eliminated. And all of these improvements in very muddy, sloppy conditions. The tighter chain seems to hold and move between cogs better.

Now the rest of the story. I found that I never use the large chainring on trails where I do nearly all of my riding on this bike, a Gary Fisher Level Betty FH 0. I usually ride in the small chinring, and in that ring, the original chain length was too long, resulting in sloppy shifting. So now my large chainring is a bashguard, as I do not shift onto it.

The $1100 Specialized RockHopper Pro Disc comes with chainrings of 32t x 22t and a bash guard, no large ring. So I guess I'm not the only one who doesn't use a large chainring on trails.

How often do you use your large chainring on trails? Maybe you too can benefit from reducing your chain length.
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Old 07-07-05, 06:24 PM   #2
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I ride on a lot of bridal trails and there's several long straight slight declines that are fun to open up on and climb up thru the gears, so for those runs I do use the largest ring. Otherwise, your suggestion sounds tempting. To be honest I don't really have any problems with any slop or slippage so it's not necessary for me I guess, but it's always fun to tinker..
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Old 07-07-05, 09:53 PM   #3
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Originally Posted by Al K
How often do you use your large chainring on trails?
Never.
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Old 07-07-05, 10:25 PM   #4
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Not much.
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Old 07-08-05, 12:57 AM   #5
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Originally Posted by Gorsar
I ride on a lot of bridal trails
You and Larry King
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Old 07-08-05, 05:42 PM   #6
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I never use the big chainring on trails and took mine off too. Planning on buying a bashring......or making one, as I am a machinist as well as a mediocre mountain biker.
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Old 07-08-05, 05:47 PM   #7
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You and Larry King
That's wrong on so many levels I don't even know where to start.. I'll just say "ouch" and leave it at that!
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Old 07-08-05, 05:55 PM   #8
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I ride in the large chain ring a lot.

Almost all of the trails here have opportunities to open 'er up.

Uwharrie has a long gravel section to get out to some of the trails, and you can really fly on it, I'll spin out in the middle chain ring.

The mountains have loooooong descents where pedaling is sometimes necessary, and the big ring then comes in handy. Tsali has a lot of big ring opportunities.

Here in Fayetteville there are long flat sections, that albeit singletrack on sandy soil are made more fun (and more dangerous! weee!) when spinning in the big ring. Bigger is faster
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Old 07-09-05, 12:33 AM   #9
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Quote:
Originally Posted by Gorsar
That's wrong on so many levels I don't even know where to start.. I'll just say "ouch" and leave it at that!
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Old 07-09-05, 02:47 PM   #10
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Quote:
Originally Posted by nodnerb
I never use the big chainring on trails and took mine off too. Planning on buying a bashring......or making one, as I am a machinist as well as a mediocre mountain biker.
Grind the teeth off a worn big ring -presto >a bashguard. I did mine with ridges to help mount logs etc.
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Old 07-10-05, 04:21 AM   #11
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Grind the teeth off a worn big ring -presto >a bashguard. I did mine with ridges to help mount logs etc.
Hi MTBers,

I broke the teeth off my big ring with pliers and then filed off rough edges. They snap off easily. Little ridges remain.
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Old 07-11-05, 05:41 AM   #12
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Quote:
Originally Posted by Al K
Hi MTBers,

I broke the teeth off my big ring with pliers and then filed off rough edges. They snap off easily. Little ridges remain.
Make them smooooth enough they will not punture your leg. Rounded WAY more than chainrings.
Use a file then sandpaper.
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Old 07-11-05, 07:25 AM   #13
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Quote:
Originally Posted by Al K
Hi MTBers,

I removed 6 chain links and my rear gear shifting improved greatly: crisper shifting; gear skipping nearly eliminated; gear slips under pressure nearly eliminated. And all of these improvements in very muddy, sloppy conditions. The tighter chain seems to hold and move between cogs better.

Now the rest of the story. I found that I never use the large chainring on trails where I do nearly all of my riding on this bike, a Gary Fisher Level Betty FH 0. I usually ride in the small chinring, and in that ring, the original chain length was too long, resulting in sloppy shifting. So now my large chainring is a bashguard, as I do not shift onto it.

The $1100 Specialized RockHopper Pro Disc comes with chainrings of 32t x 22t and a bash guard, no large ring. So I guess I'm not the only one who doesn't use a large chainring on trails.

How often do you use your large chainring on trails? Maybe you too can benefit from reducing your chain length.
Just remember that SRAM derailleurs ship with much stronger springs than Shimano. This is effectively what you've done. You've loaded stretched the spring and increased the tension.
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