Steve Bauer Sirocco drivetrain advice
08-01-17, 05:30 PM
#26
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Hard to go wrong with Shimano 600 from that time period, great reliable components.
08-01-17, 06:58 PM
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Thanks for the new pics. I was looking at some Biopace cranks on eBay last night, but wasn't sure if they would be appropriate.
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08-01-17, 08:09 PM
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Sorry forgive me for not reading every single reply before trying to help, I just worried you might waste your money on incompatible parts
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08-01-17, 08:43 PM
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08-04-17, 10:33 AM
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I received the 600 crankset from @mapleleafs-13 (thanks very much!) and installed them yesterday along with a new BB and chain. Everything looks good, but unfortunately the chain is skipping on the rear sprockets whenever I stand up on the pedals. It's not jumping up or down to another gear. It's more like a skip with a clunking noise on the rear sprocket. It seems to do it at all speeds.
It was doing this when I bought it, but I thought the old chain was the problem because it looked stretched and I don't think it was the right size for a six speed. The rear sprockets appear to be all right and I don't see any excessive wear or bent/broken teeth. I'm pretty sure I sized the chain right (55 inches) and used the calculator available here: Javascript Bicycle Chain Length Calculator. I attached a couple pics showing the sprockets and the derailleur position on low and high gears.
Edit: I just took the wheel off and checked therear cassette freewheel. It is really loose and wobbles quite a bit. I'm guessing this is probably causing the problem. 
Here's a link to a youtube video of thecassette freewheel if anyone wants to have a look:
Any suggestions would be much appreciated.
It was doing this when I bought it, but I thought the old chain was the problem because it looked stretched and I don't think it was the right size for a six speed. The rear sprockets appear to be all right and I don't see any excessive wear or bent/broken teeth. I'm pretty sure I sized the chain right (55 inches) and used the calculator available here: Javascript Bicycle Chain Length Calculator. I attached a couple pics showing the sprockets and the derailleur position on low and high gears.
Edit: I just took the wheel off and checked the
Here's a link to a youtube video of the
Any suggestions would be much appreciated.
Last edited by streetcore; 08-04-17 at 05:41 PM.
08-18-17, 06:41 AM
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Thanks to @@mapleleafs-13; I have a "new" Shimano freewheel installed and my chain skipping problems finally seem to be gone. 
08-31-17, 05:40 PM
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Finally got out for a proper ride today. So far I've replace the bottom bracket, cranks, freewheel, chain, and headset. Next on the list are hubs, tires, peddles, and saddle, but at least I can finally ride it.
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