You can't go smaller than 41 teeth on the 144mm bolt circle. But, you can use a triplizer. TA makes a 42 tooth triplizer that then accepts any 74m bolt circle chainring.
Peter Jon White Peter White Cycles 24 Hall Rd. Hillsborough, NH 03244 603 478 0900 Phone 603 478 0902 Phax Peter@PeterWhiteCycles.com http://www.PeterWhiteCycles.com
How low can I go..... Limbo Limbo
> I have 53/42 front cogs. I am told that the smallest tooth cog that will
> fit this 144mm bolt SR pattern is the 41 tooth TA. Probably correct.
> One more long shot -Without changing cranks, does anyone know of some
> odd smaller tooth that will fit my existing SR crank.Am I dreamin? How
> about custom?
>
> Mark (How low can I go? I like to limbo) Cutrufelli
>
> Laurel,MD