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Thread: Syncro

  1. #26
    hfc
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    Sheldon always has some good info

    https://www.sheldonbrown.com/cribsheet-spacing.html

  2. #27
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    Quote Originally Posted by mackgoo View Post
    What should the cog spacing be for 7sp?
    for 7-spd almost universally, spacing was 5 mm. campy kept this for 8-spd also.
    We just don’t realize the most significant moments of our lives when they’re happening
    Back then I thought “well there'll be other days”
    I didn’t realize that was the only day
    https://www.youtube.com/watch?v=Y9yrupye7B0

    There's sometimes a buggy.
    How many drivers does a buggy have?
    One.
    So let's just say I'm drivin' this buggy...
    and if you fix your attitude you can ride along with me.
    http://www.youtube.com/watch?v=GekiIMh4ZkM

  3. #28
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    Thanks. I did find Sheldon's crib sheet. I'm struggling setting the system up. Right now I have a Regina CX S 7 sp freewheel 13-24. I'm having trouble with either the first shift from 13 to 14, if that's correct then I end up over shifting until finally I hit the 24 or 7th cog with my 6th indent. If all the other shifts are good then I can't make the first shift. The spacing of the freewheel does seem correct. What I was measuring was the space between the freewheel and that was right around 3 mm, which is correct. The 5 mm is center to center. I'm running a Sram 850? chain.
    The freewheel does have at least a 1/4" "wobble". I took it appart and it does seem to be missing some bearings. I ordered a bunch and when they come in I'll rebuild the freewheel.
    Does anyone know if I can pick up Synchro cogs and put them on this body.
    One big problem I have is when I started this build I wasn't quite up to speed with all the options out there during this time period. I picked up a C-Record wheel set for a good price but failed to recognize the rear hub was French threaded so I'm having a hard time finding suitable freewheels.

  4. #29
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    According to this you should have the blue insert if you have Record

    I also found a 9-speed chain to work excellently.

    We just don’t realize the most significant moments of our lives when they’re happening
    Back then I thought “well there'll be other days”
    I didn’t realize that was the only day
    https://www.youtube.com/watch?v=Y9yrupye7B0

    There's sometimes a buggy.
    How many drivers does a buggy have?
    One.
    So let's just say I'm drivin' this buggy...
    and if you fix your attitude you can ride along with me.
    http://www.youtube.com/watch?v=GekiIMh4ZkM

  5. #30
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    Do you have a Campy 8sp cassette that you can try? My point is that if at shifts correctly, the 7sp FW should shift just as well but may require the high gear limit screw and obviously the low gear limit screw, to block off the 8th detente. Never had a problem going quickly form 8sp Campy loose cog cassette to Sachs/SRAM 7sp FW.

  6. #31
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    I believe the shifters that OP bought were an early version. They need to be matched with the RD, as actuation ratios changed during the "Syncro" evolution.

    the ad has this to say:

    The insert that comes with this set is blue, which is suggested for the old style classic Campy derailleurs such as old Super Record, Nuovo Record, and Victory being used with a narrow 7 speed freewheel. Note that we cannot guarantee shift performance as that is highly dependent on proper setup. These can be fussy to get working right. You will need to install the insert but that is pretty straightforward. And you do get the original instruction sheet nicely wrapped too!
    In post #10 I had mentioned my difficulties getting the earlier (meaning 1988-1990) setup to work well (I believe I was using a Victory RD at the time). After switching to a later shifter and RD I achieved shifting perfection.
    Last edited by bikerjulio; 05-19-2017 at 03:12 AM.
    We just don’t realize the most significant moments of our lives when they’re happening
    Back then I thought “well there'll be other days”
    I didn’t realize that was the only day
    https://www.youtube.com/watch?v=Y9yrupye7B0

    There's sometimes a buggy.
    How many drivers does a buggy have?
    One.
    So let's just say I'm drivin' this buggy...
    and if you fix your attitude you can ride along with me.
    http://www.youtube.com/watch?v=GekiIMh4ZkM

  7. #32
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    So I just about have this dialed in. I have an Aris 7 sp freewheel and it's actually shifting great.
    I'm wondering if someone who has a Campy 7sp set up, C Record would be ideal if they could take a couple pictures of their chain line. Big ring/ little cog, little ring/ big cog. Also a picture or measurement would be better, of the space between the face of the BB and the drive side crank where it places on the spindle.

    Thanks

  8. #33
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    Big ring/littlest cog, both wheels on the ground, RD cage at 90d. That's all that is needed.

  9. #34
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    I'm asking if anyone who has a 7 speed set up would be willing to take the few pictures requested so I can see what their chain line looks like. That's all that's needed.

  10. #35
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    Done. Arts 12-26 7 speed. Everything shifts perfectly. Move the lever to a click and it shifts to the next cog, up and down. Now I can just enjoy the ride for a while.
    Always on the look out for better condition components.

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