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a couple shimano 600 arabesque gearing questions(6 posts)

a couple shimano 600 arabesque gearing questionsmoschika
Jun 3, 2003 7:41 PM
would a modern 39 chainring fit this crank? or would i have to find an 'original' chainring? i currently have a 42 and think it might be too tall of a gear.

or what's the largest rear cog the arabesque rear derailleur can handle?

i currently have a 42x23 as my lowest gear. if it's cheaper to throw on bigger cog instead of the chainring change i'll do that. it's a 6 speed DA cassette. are there 'special' 6 speed cogs?

thanks
re: a couple shimano 600 arabesque gearing questionseddie m
Jun 3, 2003 9:27 PM
As I recall, that crank takes the same chainrings as modern Shimano cranks. The smallest one that will fit is a 38, but 39 are much more common. I used a 40x30 combination on mine for a time. I don't know if current cogs will fit that body.
You need 6 speed uniglide cogs.MR_GRUMPY
Jun 4, 2003 6:41 AM
DA and Shimano 600 cogs are the same except for the outside thread on cog. If it's a DuraAce hub, you need a DuraAce outside thread on cog. Different ID.
re: a couple shimano 600 arabesque gearing questionsM_Currie
Jun 4, 2003 7:10 AM
A lot of old Shimano 600 derailleurs were used (separate from the rest of the group) on mid-range 10-speeds, and these regularly ran up to 28 in back.

By the way, just as a bit of side trivia, the Arabesque crankset was often set up as a triple with spacers - rather odd, but the one I now have on my bike was originally a 52-45-39. The bolt circle diameter is 130, and as noted by someone else, the minimum is 38.
thanksmoschika
Jun 4, 2003 8:56 AM
i'll see if they have a smaller ring for the front at my LBS. it's a dura ace hub and the whole cassette is a 13-23. how available do you think are the 6 HG cogs? i'll check that too.

thanks for everyone's help.
Check out Sheldon Brown's web site about cogs..nmMR_GRUMPY
Jun 4, 2003 10:00 AM