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Old 06-02-12, 09:33 AM   #1
IVOR
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Chainring & cassette

I recently discovered in our shack that my dad has an old “Kona Jake the snake” which has stayed out of every ones attention for a longtime. I decided to make some changes in its specification among other things and use it as a road bike.

Original specification:
Chain rings 46/36
Freewheel (Cassette) 11-25

I want to change to:
Chain rings 50/36
Freewheel (Cassette) 11-28

Do I have to change the chain in connection with above?
What effect should I expect while changing chainring from 46/36 to 50/36 with the new combination of 11/28 cassette?

Thanking beforehand for any comment.
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Old 06-02-12, 09:37 AM   #2
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Just put smooth tires on it and ride.
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Old 06-02-12, 02:54 PM   #3
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If you are changing chainrings and cassette then you should change the chain too. Components tend to wear together. Depending on the amount of chain stretch the existing chain received, it might accelerate wear on the new components.

The gearing change you are recommending will give you a broader range of gears for more diverse conditions. The trade-off is that their will be a less smooth transition between gear changes. Its a good setup for varying terrain and speeds, but less efficient shifting if you plan to race it.
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Old 06-02-12, 04:05 PM   #4
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Quote:
Originally Posted by Germanicus View Post
If you are changing chainrings and cassette then you should change the chain too. Components tend to wear together. Depending on the amount of chain stretch the existing chain received, it might accelerate wear on the new components.

The gearing change you are recommending will give you a broader range of gears for more diverse conditions. The trade-off is that their will be a less smooth transition between gear changes. Its a good setup for varying terrain and speeds, but less efficient shifting if you plan to race it.
+1

The new chain is needed and will need to be longer by about 8 links
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Old 06-02-12, 04:57 PM   #5
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The cassette is a good change, but just leave the crankset. You're not likely to overdrive the 46/11; I just spin it up when I ride my 'cross bike and nobody has ever gotten away from me.
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Old 06-02-12, 11:20 PM   #6
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I wouldn't change anything until you ride it for a while and see that it won't work as is. It probably will.
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