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Old 08-21-09, 09:37 PM   #1
ewingmeister
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Scwinn World Sport mid 80's how to measure bottom bracket?

I am purchasing this crank to convert my schwinn world sport

http://cgi.ebay.com/EIGHTHINCH-FIXED...d=p3286.c0.m14

It requires a 103mm square taper, how can i measure my square taper to know that it will fit?
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Old 08-21-09, 10:51 PM   #2
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Originally Posted by ewingmeister View Post
I am purchasing this crank to convert my schwinn world sport

http://cgi.ebay.com/EIGHTHINCH-FIXED...d=p3286.c0.m14

It requires a 103mm square taper, how can i measure my square taper to know that it will fit?
It won't. The stock bottom bracket on a Schwinn World Sport will have a 120 to 124mm spindle. You should get a bottom bracket to match the cranks. Fortunately, the World Sport had a standard English-threaded bottom bracket.
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Old 08-21-09, 11:08 PM   #3
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will this bracket work

http://www.universalcycles.com/shopp...s.php?id=16123

will this bracket work, thank you for the help by the way how can i measure my tube to find out if you dont know off hand i already removed the old spindle this bracket looks like it may fit
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Old 08-22-09, 06:13 AM   #4
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Hi ewingmaster. yes, as Jeff stated.that BB will work. I was looking at that 1/8 crank. you know you need a new chain right? the 'pitch of the teeth is not compatible with your "10spd" 3/32 chain

did you get you cog or single speed freewheel yet?
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Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SOLD, '?? Jane Doe (still on the drawing board), '90ish Haro Escape
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Old 08-22-09, 09:04 AM   #5
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yes, thank for your reply,the whole reason i am converting this bike is becuase i scored a track wheel set for $100 its a flip flop hub with 16 tooth cogs on both sides, i found a chain on the crank dealers website to fit it
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Old 08-22-09, 11:06 AM   #6
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Originally Posted by ewingmeister View Post
http://www.universalcycles.com/shopp...s.php?id=16123

will this bracket work, thank you for the help by the way how can i measure my tube to find out if you dont know off hand i already removed the old spindle this bracket looks like it may fit
Yes, that bottom bracket will work.

You don't have to measure anything. The bottom bracket shell on a World Sport is English thread- that's all you need to know.
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Old 08-22-09, 11:18 AM   #7
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Ok
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Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SOLD, '?? Jane Doe (still on the drawing board), '90ish Haro Escape
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Old 08-22-09, 06:40 PM   #8
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hey by the way how do i install something like that bracket does it thread though the right side down onto the left side? Do i need any special tools or should i take it to a local bike shop after i paint the frame and ask for them to install it for me?
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Old 08-22-09, 06:56 PM   #9
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You need a cartridge bottom bracket tool and socket wrench or 1 inch wrench. Or just have them install it. They won't charge much.
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