Ok here is my reasoning the chain lasts longer when the front and rear cogs are aligned and when the
largest cogs for a given gear ratio are used. If you are using a 30 tooth inner cog now there may be
room for a 20 tooth cog without using a longer bottom bracket. Notice the 20 tooth cog will be
better aligned with your large rear cog. The romp family used a sugino maxy with three 110mm
chainrings and a microadapter for a forth chainring on their tour across the USA on a quad
santana.See rompfamily.com for more info.
Cycling Equipment · Public discussion
Quadruple chainrings
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- Cycling Equipment
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- 28 November 2003
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- 28 November 2003
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- Charles Ramsey
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