CityCyclingEdinburgh Forum » Debate!

The Scaffolding Bike

(131 posts)
  • Started 5 years ago by I were right about that saddle
  • Latest reply from I were right about that saddle

1…45

  1. I were right about that saddle
    Member

    I think I've tracked down the problem. The neoprene o-rings in the service pack aren't labeled. I kind of tried to replace like with like and I'm pretty sure I've inverted the shaft seals on the spring and damping legs.

    So the oil is leaking past the piston on the damper side and collecting underneath. The travel is limited by the piston sitting on the oil.

    Let the air pressure out of the spring side and the damper piston can slowly sink back down through the oil underneath as the leak direction is reversed.

    Looking at a third session with the fork in bits to get the seals the right way round....

    Posted 5 years ago #

  2. I were right about that saddle
    Member

    Fork stripped and now, at last, I actually understand how it works after the oil damper came apart as I extracted it from the stanchion and I had to reassemble it. Quite fascinating.

    My error was a transposition of o-rings from the air-spring to the oil-damper sides. Tiny difference in size but the whole contraption was brought low by the resulting oil leak.

    Posted 5 years ago #

  3. acsimpson
    Member

    I thought tiny differences were the thing you were most likely to measure. At least you had a micrometer handy.

    Posted 5 years ago #

  4. I were right about that saddle
    Member

    @acsimpson

    Slapdash self confidence a speciality.

    Posted 5 years ago #

  5. gembo
    Member

    it did look nice protecting the bike lane next to my trusty old tricross this very morning

    Posted 5 years ago #

  6. I were right about that saddle
    Member

    @gembo

    Signal violet. Two words made for each other. Needs a wash and the front mudguard installed for its photo-shoot now, but we seem to have silent running.

    Posted 5 years ago #

  7. I were right about that saddle
    Member

    Front mudflap on. Sticker stuck back on the fork damper knob. Last three hose retaining clips replaced.

    I think the SUNLIT Uplander is now become whole. The Scaffolding Bike lives on in the changers, the last original parts from February 2000. I shall write to Shimano and congratulate them on the quality of their work.

    Posted 5 years ago #

  8. I were right about that saddle
    Member

    Tracked down my shifting niggles. The rear mech was floppy, and replacing it allowed me to deduce that the rear shifter is worn out. It no longer indexes with the cassette.

    Can't complain. Nineteen years of a hundred gear changes a day adds up. In fact: chapeau, Shimano.

    Posted 5 years ago #

  9. I were right about that saddle
    Member

    Chatting to a lady on a nice Whyte 806 on North Bridge. 1 x 10 drive train with an 11-46 cassette. Tempted by the simplicity to replace my 3 x 8 but she was running out of gears at speed.

    Again, this only ever happens on a bike. No chance to admire another car's gearbox at the lights.

    Posted 4 years ago #

  10. LaidBack
    Member

    @iwrats Is certainly a trend.
    I have a 50T chainring on the back of my third hand orange recliner and 40T on front. 10-50 12 speed cassette - does actually work well but not cheap.
    In old money it delivers 20" to 100" gearing. Downhill it's one click short so spins out.
    Also got a 40 year old Raleigh Stowaway at shop with Sturmey 3 speed as my folding bike!

    Posted 4 years ago #

  11. I were right about that saddle
    Member

    Last time I had a front mech die on me I just took it off and stuck the chain on the middle ring. Worked fine round town.

    I'm thinking 3 x 9 will be cheapish and robustish and not too clunky.

    Posted 4 years ago #

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