Advertise on Bikeforums.net



User Tag List

Results 1 to 9 of 9
  1. #1
    Senior Member
    Join Date
    Aug 2009
    Location
    Madison, WI
    Posts
    2,536
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)

    Ever modify a lug?

    Got a new bike. I took it for a ride today and I think it's gonna be a keeper for daily rider and putting into bike racks, so I think I might have it powder-coated. I was also thinking it would be kinda cool if I can modify the lugs or something cool like that while the frame is stripped. Anyone ever do anything of the sort? The simple seeming idea I have in my head now is just filing them down some on the points and hopefully making them look cool when I detail around them after powder-coat. Any other ideas/advice?

  2. #2
    www.theheadbadge.com cudak888's Avatar
    Join Date
    Sep 2005
    Location
    Southern Florida
    My Bikes
    http://www.theheadbadge.com
    Posts
    22,730
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    You can smooth out a lug after it has been brazed in, but it would be foolhardy to modify the actual contours.

    That said, I'd be reluctant to smooth out lugs for a powdercoat, unless you're 100% sure that the shop puts on a crisp, thin coat. Finding a shop that can do that isn't common.

    -Kurt

  3. #3
    Senior Member
    Join Date
    Jun 2006
    Posts
    8,655
    Mentioned
    14 Post(s)
    Tagged
    0 Thread(s)
    You could modify for powder coat, not that it would appear stylish by a guy into lugs. Sharp edges are bad in powder coat land, the film thickness reduces at a square edge or corner, rounded edges and fillets are happy for powder, the type of definition that lugs provide is the problem.

  4. #4
    Senior Member
    Join Date
    Aug 2009
    Location
    Madison, WI
    Posts
    2,536
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Hmm... So maybe I should just leave my lugs alone and just go for some cool pinstriping* or something...

    *I'm thinking of what they do on the hoods of cool hot rods, not lines down the frame like a pinstripe suit.

  5. #5
    Senior Member southpawboston's Avatar
    Join Date
    Aug 2008
    Location
    Somerville, MA and Catskill Mtns
    Posts
    3,749
    Mentioned
    18 Post(s)
    Tagged
    0 Thread(s)
    I modified lugs on a bike before having it PC'd, but I didn't thin them. Rather, I just smoothed out some rough edges using a cutting wheel on a dremel. It looked like no files had ever been used on the lugs during production (French bike, so par for the course).
    Riding the Catskills blog

    Flickr

    1971 Mercian Olympic | 1972 Jeunet 630 | 1982 Jack Taylor Tour of Britain | 1984 Shogun 1500 650B | 2013 Rawland Stag | 2014 Jeff Lyon L'Avecaise

  6. #6
    Senior Member TugaDude's Avatar
    Join Date
    Nov 2010
    Posts
    1,345
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    If I were you, I wouldn't do much to them except file off rough contours. Then consider a base coat of "chrome" on the bike and then a solid color, masking off the lugs and fork ends, rear stays, etc. A good powdercoater can do this. I've spoken with Groody Bros. in Kansas City, MO and they have done this to bikes. Takes more time and is a little more costly, but gives a nice look.

    The "chrome" color is actually a metallic powdercoat and can be silver, gold, copper, etc. Lots of potential there for a unique scheme. Groody told me to be aware that is doesn't really look like true chrome, but is "chrome-like". It is very attractive, but some folks are disappointed because they thought it would look like real chrome.

    I like your idea of pinstriping. Search pics of some older French and English bikes for ideas.

    Good luck!

  7. #7
    Senior Member
    Join Date
    Jun 2006
    Posts
    8,655
    Mentioned
    14 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by TugaDude View Post
    I like your idea of pinstriping. Search pics of some older French and English bikes for ideas.

    Good luck!
    The Australians went full bore for hand accented bikes.

    http://www.ebay.com.au/itm/vintage-m...-/300556062668

  8. #8
    Randomhead
    Join Date
    Aug 2008
    Location
    Happy Valley, Pennsylvania
    Posts
    12,824
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The lug in my avatar has welded-on extensions top and bottom, and the ears cut off and a new set of ears welded on. Of course, all of that was before the frame was built. I wasn't smart enough back then to realize that most builders just use brazing for their lug modifications.

    That being said, I wouldn't modify a lug on a frame that someone else built

  9. #9
    Senior Member Drillium Dude's Avatar
    Join Date
    Jul 2009
    Location
    Seattle, WA - Center of the Universe
    My Bikes
    69 Masi Special, 71 Mondia Special, 74 Colnago Super, 78 Colnago Super, 78 Medici, 79 Dennis Sparrow, 80 Alpina, 83 Colnago Mexico, 85 Somec Super Corsa, 85 Casati Perfection, 85 Spinella (Olympia), 02 Bill Davidson custom
    Posts
    5,103
    Mentioned
    16 Post(s)
    Tagged
    2 Thread(s)
    I actually did a little more than thinning on this frame's lugs during its restoration. I also enlarged a few of the cutouts with a diamond-tipped Dremel burring tool. This was done slowly and carefully over a period of about a week. When I was done removing steel, there was still brass residue underneath, so I know I didn't get down into the tubing.

    The lug window below was much smaller than it is now:

    http://farm5.static.flickr.com/4119/...9edc3e94_b.jpg

    DD

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •