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Can't find triple chain ring set

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Old 07-07-13, 04:31 PM
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Can't find triple chain ring set

Hope I can get some help through this forum. I have a '97 Cannondale MT 900 that I have had since new. It's been good to us and after replacing a few chains it's finally gotten to the point where I need to replace the stoker chain rings. I have found and purchased a new 8 speed cassette but cannot seem to locate a 58mm/94mm 30-39-52 triple chain ring set. Any help would really be appreciated.

Thanks, Scott
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Old 07-07-13, 08:09 PM
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Don't recognize those measurements. We normally discuss "BCD" = Bolt Circle Diameter, and the common ones are 130 BCD and 110 BCD (in mm), both of which have lots of options in replacement chain rings. Others exist, but Cannondale should be standard.
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Old 07-07-13, 08:30 PM
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Bikepedia shows that the 97 MT 900 came with a Sugino Impel 300, 28/38/48 teeth but that's not the crankset that you have?
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Old 07-07-13, 08:46 PM
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Originally Posted by gsms
I have a '97 Cannondale MT 900 that I have had since new. It's been good to us and after replacing a few chains it's finally gotten to the point where I need to replace the stoker chain rings. I have found and purchased a new 8 speed cassette but cannot seem to locate a 58mm/94mm 30-39-52 triple chain ring set. Any help would really be appreciated.
According to Bikepedia, the drivetrain on a 1997 Cannondale MT 900 is a follows:



Components
Component. Group..................... Shimano Deore LX/STX
Shift Levers...................... Sachs Power Grip Plus
Front Derailleur...................... Shimano STX-RC top-swing, bottom-pull/clamp-on 35.0 mm
Rear Derailleur...................... Shimano STX-RC
Crankset...................... Sugino Impel 300, 28/38/48 teeth
Bottom Bracket ...................... Shimano BB-UN52
BB Shell Width...................... 68mm English
Rear Cogs...................... 8-speed, 11 - 30 teeth
Chain...................... Sachs SC-45, 1/2 x 3/32"

How does what you have differ from this?

Sugino still makes a triple square taper crankset, and so presumably chainrings withal.
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Old 07-07-13, 09:09 PM
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Old 07-07-13, 09:20 PM
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Originally Posted by 2frmMI
Don't recognize those measurements. We normally discuss "BCD" = Bolt Circle Diameter, and the common ones are 130 BCD and 110 BCD (in mm), both of which have lots of options in replacement chain rings. Others exist, but Cannondale should be standard.
The 58mm and 94mm measurements the OP was kind enough to include are the BCD. Universal Cycles has them: https://www.universalcycles.com/shopp...p?category=649
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