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CB500 Four K1

This is a discussion on CB500 Four K1 within the NEW MEMBERS READ HERE! forums, part of the Caferacer.net Forums category; Thanks for the advice. Still not sure on double tab washers. Nuts can still rotate off. What’s the view on nylocks? Fork internals are first ...

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Thread: CB500 Four K1

  1. #231
    Senior Member Register's Avatar
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    Thanks for the advice. Still not sure on double tab washers. Nuts can still rotate off. What’s the view on nylocks?

    Fork internals are first generation as photo.

    Look to be in good condition. External tubes are fine
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  2. #232
    Senior Member woodsman's Avatar
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    New internals are pretty cheap. Measure the springs see where you are.
    https://www.progressivesuspension.com/

  3. #233
    Senior Member Register's Avatar
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    I’m on a fantasy programme to get everything back together inside two years, so it’s mostly get on with it at moment. I’ll run the springs I have with Mobil 1 synthetic ATF, which I read somewhere is best in class - who knows?

    Installed the fork seals ‘Chinese characters’ upwards, with a short piece of plumbing pipe - effortless. Spring clips and boots and looks like the real thing.

    I’ve reversed the sliders to fit the callipers behind - sure to be another drama, but one for next w/e.

    Need to shorten the bars and machine the RH mount, as the brake cylinder/piston overlaps, resulting in a bent back wrist angle to the lever. There’s a dodgy photo that shows the issue.
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  5. #234
    Senior Member TrialsRider's Avatar
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    Quote Originally Posted by Register View Post
    Thanks for the advice. Still not sure on double tab washers. Nuts can still rotate off. What’s the view on nylocks?

    Fork internals are first generation as photo.

    Look to be in good condition. External tubes are fine
    It is the lower fork leg internal bore you should be measuring for out of round.
    can you put another set of lock washer tab on the other side?

    ... fasteners on your brakes are generally the best quality bolts on your entire vehicle, any kind of vehicle, never downgrade them.

    Hate those tyres btw but let me know what you think of yours after you ride them in the wet or on sand.
    Last edited by TrialsRider; 12-15-2019 at 06:05 PM.

  6. #235
    Senior Member Register's Avatar
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    OK, got it now.
    A bit challenged on the forks. I have early internals with rod and later outer on RHS as I needed the calliper mount that wasn’t on the original.
    Hopefully all good.
    Got the rear tyre mounted but still need to sort the offset which I figure I can do best in the frame.
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  7. #236
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    Finally rolling after 2 years.
    Need a new sprocket, chain ring and chain, so I can fix the rear hub offset.
    Rather wish I’d gone for black rather than plain alloy rear set mounts. Now need to sort out anodising.
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  8. #237
    Senior Member TrialsRider's Avatar
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    You going to anodize them black, that makes sense, you going to pay to clear anodize them and then paint them too :/
    not that i ever cared about what colour my peg brackets were lol they are going to get trashed by my boots

    Highly recommend you reconsider offsetting a motorcycle hub to centre a known off centre mounted rim, you could do that on a 4 wheeler with no problem,
    not on a vehicle that steers by balancing on 2 wheels and leans to corner.


    ... if you are making a pretty bike to look at and not one to actually ride,
    disregard all of my recommendations and just go for it best luck with your art project
    Last edited by TrialsRider; 12-23-2019 at 08:47 AM.

  9. #238
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    Plan is to anodise black. Look way too shiny at the moment.

    You misunderstood me on the off-set.

    I’ve built up the wheel but can’t find any info on the off set. The rim sits to the right to accommodate the chainring offset but not sure how much.

    Not sure about a ‘pretty bike’ but I did sit on it and make noises 😉
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  10. #239
    Senior Member Teazer's Avatar
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    Wheel rims typically have zero offset to the hub (spoke flanges). If you have offset the rim to clear the chain please check wheel alignment because it will most likely be all wrong.

    What you are calling offset is just the fact that the hub is wider on one side and that's how it's meant to be. Offset is relative to spoke flanges.
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  11. #240
    Senior Member Register's Avatar
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    Teazer, thanks, I've finally got it!

    The rim is centred on the hub as you say not on the drum/sprocket offsets.

    Man I could have used that little gem 6 months ago.

    How dumb do I feel?

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