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Old 01-12-09, 06:11 AM   #1
Steve65
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Upgrade crank sprockets

I've bee using an old mountain bike to get around in Sheffield. It's a hilly place and need the lowest gears.
The bike needs some repars so I'm on the old raleigh which turns out to be much more effiecient on the flat but a real strain on the hills; it only has 2 front spockets and the rear speockets are also smaller than the MTB.

What would be the issues for replacing the front crank 2 sprockets with a 3 sprocket variety?

Thanks
Steve
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Old 01-12-09, 06:18 AM   #2
Abacus
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How old is the Raleigh?

What crankset is on it at the moment?
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Old 01-15-09, 08:04 PM   #3
East Hill
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Old 01-19-09, 04:16 AM   #4
Steve65
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The bike is about 25 years old (16th bithday) - Raleigh Magnum.
The front crank and sprockets were replaced a few years ago.
I think rey're Shimano probably about 8inch & 7inch diameter.
Could do with something like 5inch.
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