More on broken axle
#1
Dirt Bomb
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More on broken axle
In case you missed it, my Trek 820 has had 2 broken rear axles in 14 months. I called the LBS today to see about replacing the freewheel with a freehub. He said it would cost about $75. He also said most bikes today have freewheels, and that they are generally not a problem.
That's not what I'm hearing on these threads.
What gives?
That's not what I'm hearing on these threads.
What gives?
#2
black betty
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i mean alot of bikes do use freewheels...theres just more lower end bikes than mid or high end ones. they DO work fine though, id be intreted to know more in detail what your issue is.
are they planning on just getting you a new hub and relacing it?
are they planning on just getting you a new hub and relacing it?
#3
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Originally Posted by sknhgy
In case you missed it, my Trek 820 has had 2 broken rear axles in 14 months. I called the LBS today to see about replacing the freewheel with a freehub. He said it would cost about $75. He also said most bikes today have freewheels, and that they are generally not a problem.
That's not what I'm hearing on these threads.
What gives?
That's not what I'm hearing on these threads.
What gives?
Last edited by well biked; 04-05-07 at 10:32 PM.
#4
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All geared bikes used to have freewheels, though the early 1980's, and most bikes had freewheels until Shimano decided to force freehubs on the market by offering their 7-speed indexed shifting only in freehub design. This was a good thing, as freehubs are structurally superior to freewheel design because they don't have lots of exposed axle between the bearings and dropout, just absorbing torque and shear force until they bend or break.
Of course, it's possible to produce very strong-axled freewheel hubs (and Phil Wood still makes excellent ones) but even low-end freehubs will never break axles, simply because the design is superior.
The heavier the rider, or the bumpier the terrain, the more chance of bending/breaking the axle on a freewheel hub. (Also, more gears mean more exposed axle, more shear force and torque, so more chance of breaking. I weigh 180# but rode with a 5-speed freewheel on my commuting bike for a long time, with no problems. But I would regularly bend the axles on 6- or 7-speed freewheel hubs.)
Anyway, nicer bikes haven't had freewheels in nearly 20 years. Dept. store bikes still do, as do lower-end bikes from major manufacturers.
Of course, it's possible to produce very strong-axled freewheel hubs (and Phil Wood still makes excellent ones) but even low-end freehubs will never break axles, simply because the design is superior.
The heavier the rider, or the bumpier the terrain, the more chance of bending/breaking the axle on a freewheel hub. (Also, more gears mean more exposed axle, more shear force and torque, so more chance of breaking. I weigh 180# but rode with a 5-speed freewheel on my commuting bike for a long time, with no problems. But I would regularly bend the axles on 6- or 7-speed freewheel hubs.)
Anyway, nicer bikes haven't had freewheels in nearly 20 years. Dept. store bikes still do, as do lower-end bikes from major manufacturers.
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"c" is not a unit that measures tire width
"c" is not a unit that measures tire width
#5
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Originally Posted by sknhgy
In case you missed it, my Trek 820 has had 2 broken rear axles in 14 months. I called the LBS today to see about replacing the freewheel with a freehub. He said it would cost about $75. He also said most bikes today have freewheels, and that they are generally not a problem.
That's not what I'm hearing on these threads.
What gives?
That's not what I'm hearing on these threads.
What gives?
If you're breaking rear axles, that means that you are using your bike quite a bit. If that's the case, it's worth spending a little money to fix it up so that it doesn't break axles anymore. $75.00 should buy you a freehub rear wheel that's about 1 step above department store bike level. If it was my bike, that's what I would do.
#6
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It would be cheaper for you to just replace the rear wheel with one equipped with a freehub with the same amount of cogs.