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Old 01-19-08, 07:47 AM
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HillRider 
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Join Date: Aug 2005
Location: Pittsburgh, PA
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Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!

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Originally Posted by ang1sgt View Post
Really Early MTB LX or XT stuff had 5 arms on the gears.
In the late '80's and early '90's Shimano's MTB groups were Deore LX, DX and XT and all used 5-arm 110/74 mm BCD cranks. I have a DX crank on a '92 Trek 1420 and an LX crank on a '93 Trek 7000 and both are 110/74 with 5-arms. The riveted stuff at the time was the really low line (Acera?) and similar.

This thing is really peculiar. Apparently the big ring is riveted to the spider but the middle and granny ring are bolted on.
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