Advertise on Bikeforums.net



Search:

Type: Posts; User: old's'cool; Keyword(s):

Page 1 of 20 1 2 3 4

Search: Search took 0.87 seconds.

  1. You rebel you! :thumb:

    You rebel you! :thumb:
  2. If there's nothing wrong with the 27" wheels,...

    If there's nothing wrong with the 27" wheels, there's no need to rush into changing to 700C. If your 6-speed freewheel has conventional spacing, you can change to a 7 speed freewheel with no other...
  3. Replies
    90
    Views
    8,745

    :love: I can't imagine a more perfectly shaped...

    :love: I can't imagine a more perfectly shaped randonneur bar. My 76 Raleigh GS sports a GB Randonneur, and I have another one in my parts bin waiting for me to decide which of my other bikes...
  4. To elaborate on the above good advice for...

    To elaborate on the above good advice for shortening an axle, if you don't have a suitable die or thread file to clean up the threads after cutting and chamfering, it is very helpful to have a nut...
  5. Robbie, :roflmao2: you're funny. :thumb:

    Robbie, :roflmao2: you're funny. :thumb:
  6. I vote restore, to whatever degree of original or...

    I vote restore, to whatever degree of original or modified outcome you desire. Cool bike.
  7. Yeah, the 21 is a bit of a fly in the ointment...

    Yeah, the 21 is a bit of a fly in the ointment for a smooth progression, with a 28T large cog. I probably would lose sleep at night with with either 13-15-17-21-25-28 or 13-15-17-21-24-28 because...
  8. The bikes I have for commuting have exclusively...

    The bikes I have for commuting have exclusively drop handlebars, which I ride the vast majority of the time "on the drops". However, in the traffic conditions described in the OP (which I experience...
  9. Replies
    36
    Views
    758

    Well, there went another 20 minutes. That was...

    Well, there went another 20 minutes. That was fun...thanks! Pic #3 in the first group, at first I thought it was sabotage, a-la "pump through the spokes" of Breaking Away, then I realized it was...
  10. That should work; you might need to add up to 3...

    That should work; you might need to add up to 3 links to your chain. I assume an RD of that vintage can easily handle another 7 teeth of wrap.
    If we're still talking about the Helicomatic, you...
  11. Fair enough. My approach would be to source a...

    Fair enough. My approach would be to source a complete triple [square taper, 80's vintage] crankset, e.g. from Ebay. One should be prepared for some trial & error with such mods, but as noted...
  12. Not in my experience, having converted to triple...

    Not in my experience, having converted to triple cranksets on 4 vintage bikes now.

    Not in my experience, however YMMV. On my most extreme combo I've run a 26-13 freewheel and 30-52 crankset with...
  13. Replies
    22
    Views
    444

    I was thinking of using that shiny silver tape...

    I was thinking of using that shiny silver tape you can get at hardware stores on my nicer bikes, but so far I've been too swamped with other projects to get on with it.
  14. Not sure if it's already been mentioned above,...

    Not sure if it's already been mentioned above, the M at the start of the serial # identifies the frame as built in 1984, with high probablility.
    Have fun with your project, vintage bikes, wrenching,...
  15. Replies
    15
    Views
    367

    You need a notch tool and not just any tool but...

    You need a notch tool and not just any tool but exactly the right one. Others will chime in with the appropriate part numbers, methods, and perhaps links to Sheldon Brown's website but I just wanted...
  16. I haven't owned one, but based on what I...

    I haven't owned one, but based on what I understand, I wouldn't invest a lot of time effort or money in a Helicomatic unless it were a labour of love. If it's working for you as-is that's one thing,...
  17. Yeah but, I would go with whichever orientation...

    Yeah but, I would go with whichever orientation gives the best overall chainline, with adequate clearance to the chainstay. I say this because I have one triple crankset that gives the best result...
  18. Replies
    72
    Views
    1,205

    As Jim alludes here, the mechanical ratio is not...

    As Jim alludes here, the mechanical ratio is not constant, it varies between the starting point to when maximum force/travel is reached at the lever. A preferred design/setup would be one in which...
  19. Replies
    61
    Views
    1,184

    "Stainless" steel is a category, not a...

    "Stainless" steel is a category, not a specification. So you can't generalize about the properties of "Stainless" steel. You need to pick an exact specification and, if necessary, heat treatment,...
  20. Replies
    65
    Views
    1,308

    xxcycle.com has 51 & 54T offerings...

    xxcycle.com has 51 & 54T offerings... not sure what question was asked by OP regarding chainrings.
  21. Replies
    72
    Views
    1,205

    Easy enough to draw up a force vector diagram and...

    Easy enough to draw up a force vector diagram and figure out how the force multiplication at the pad relates to the straddle cable length for a given caliper, pad depth, and rim width. To do this...
  22. Replies
    40
    Views
    999

    Be advised, the ads are individually selected to...

    Be advised, the ads are individually selected to target your presumed interests... ;)
  23. Well, that's a step forward. In addition to the...

    Well, that's a step forward. In addition to the Swiss, BB, my 78 sports a French size (22.0mm) headset/stem. Seatpost dia. is a little bit "special" too, don't know if specifically French.
  24. Replies
    47
    Views
    1,221

    Not promoting this kind of cynical behaviour by...

    Not promoting this kind of cynical behaviour by any means, but I know of a case where 2 tons of decorative pebbles (in handy 50lb bags) were purchased from Home Depot, used as ballast for motor...
  25. FWIW my sidewall failure was on a 27x1-1/8"...

    FWIW my sidewall failure was on a 27x1-1/8" non-kevlar IIRC, wire bead, in 2011, on a tire I probably purchased in 2010. Used in a heavily loaded commuting application, with some gravel sections of...
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4