The Deore triple fits a 30t stock granny. The Deore chainset on my Ross Signature Touring is a lovely 55/45/30. I can't recall from memory but can check the inner BCD and mounting style and echo back to those interested.
Photos of a Kellog-built Ross Signature "Touring" with correct crankset fitted and a 1982 Bicycling review article that discusses some of the Deore equipment can be found near the bottom of my link page:
http://www.users.fast.net/
Charlie Young Honey Brook, PA
Jerome & Elizabeth Moos wrote:
>Speaking of Deore, I just bought a partial gruppo on eBay. Despite the small circle for the outer chainring, the inner chainring BCD look s no smaller than the Dura Ace 130 BCD. To go to low touring gears did one mount TA chainrings to the Deore arms?
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>Regards,
>
>Jerry Moos
>Houston, TX