• New, Rare Shimano Deore XT M730 / Touring 44 tooth Biopace oval chainring. 
• This is the first generation BioPace, used on Deore XT and the Deore Touring Triple.
• 110bcd, 5/6/7/8-speed and made in Japan beauty from 1985.
• 2.2oz./65 grams.
• CRB084.
• FREE shipping in the USA.