Advertise on Bikeforums.net



User Tag List

Results 1 to 15 of 15
  1. #1
    Senior Member
    Join Date
    Mar 2008
    Posts
    203
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Some lightweight tuned folders

    I've been busy building a sub-4kg road bike for a while, meanwhile some of my mates are building some crazy light folder mods. Here I show some of them: I bet there are among the lightest folders out there so far.

    Birdy Classic, 7.5kg







    KCNC seatpost
    KCNC crankset
    KCNC brake
    Sachs shifter
    XTR RD
    Recon titanium cassette
    I-link cable
    C64 carbon saddle
    Eggbeater 4ti pedal
    Custom elastomer
    Custom handlepost and seatpost QR
    Custom 20" wheelset

    Brompton Singlespeed, 7.29kg






    Zipp 300 crankset
    Custom wheelset with titanium spokes
    KCNC seatpost
    KCNC brake
    Wellgo ti spindle pedals
    Mortop carbon handlebar
    I-link cables

    Presto Lite Singlespeed, 6.48kg









    Zipp 300 crankset
    KCNC seatpost
    KCNC brake
    Nokon cable
    Custom wheelset
    Carbon saddle

  2. #2
    Raleigh20 PugFixie, Merc LittlePixel's Avatar
    Join Date
    Sep 2004
    Location
    London UK
    My Bikes
    1982 Raleigh Twenty Hotrod Fixie; 1984 Peugeot Premier Fixie, 2007 Merc Lightweight folder
    Posts
    1,955
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    With these weight weenies you are spoiling us!
    Nice to see more Pr!mo Champ wheelchair tyres on a Brompton!

    I got my Merc/Brompton down to about 8kg. It would've been less with some Eggbeater Ti pedals, (but so expensive!) and then I added weight with an aberhallo stem, drop bolt and pantour suspension hub.
    I hear you can lose more grams if you drill the spokes like an airframe

  3. #3
    Senior Member
    Join Date
    Apr 2007
    My Bikes
    Dahon Mu Sport & Mu Ex
    Posts
    282
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Lightes folder ever

    Wow, fantastic!

    The lightest folder I know of so far is the Rob English custom BF Pocket Rocket:
    http://community.bikefriday.com/oreg...madebikeshow07

    weight is a claimed 15lb (=6.8kg)

    Birdy is a different league as it is suspended.

    The shown Brompton and Presto are Single Speed, and also lack a rear brake.

    Do you know the frames weigth?

    BTW, I am maintaining a weigth parts list for folding bikes here (in German): http://www.faltradforum.de/viewtopic...4&t=168&p=2508

  4. #4
    Senior Member
    Join Date
    Feb 2009
    Posts
    217
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Another Birdy, 7.9 kg

    http://bike.gn.to/7_9bd-1.htm

  5. #5
    Bromptonaut 14R's Avatar
    Join Date
    Feb 2005
    Location
    Central Florida - USA
    My Bikes
    2012 Brompton S6R; 2003 Litespeed Firenze; 1994 Diamond BAck Axis TT
    Posts
    1,649
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I personally don't think the cost effectiveness of these bikes are an intelligent approach. Don't get me wrong, the cool effect is awesome, but I would rather have a bike slightly heavier than these with some gear options, a fitted saddle and front and rear braking power than save 3 or 4 pounds. Specially because unless you are down to 4% of body fat, you can lose a lot of bike-user weight by reducing your body fat.

    Does it make any sense?

  6. #6
    New usename ThorUSA brakemeister's Avatar
    Join Date
    Nov 2004
    Location
    Southern Illinois USA
    Posts
    2,469
    Mentioned
    0 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by 14R View Post
    I personally don't think the cost effectiveness of these bikes are an intelligent approach. Don't get me wrong, the cool effect is awesome, but I would rather have a bike slightly heavier than these with some gear options, a fitted saddle and front and rear braking power than save 3 or 4 pounds. Specially because unless you are down to 4% of body fat, you can lose a lot of bike-user weight by reducing your body fat.

    Does it make any sense?
    of course that make sense .... most of these bikes were designed to take the daily grind

    however,
    Porsche Ferrari Lamborghini Maserati Bentley ....... dont make sense either .....but they are all cars to drool over ..

    same as these bikes .... absolutely stunning

    thor

  7. #7
    Senior Member edwong3's Avatar
    Join Date
    Dec 2007
    My Bikes
    2007 Qile Duo 20" Multi-Purpose Folding Bike
    Posts
    689
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by pibach View Post
    The shown Brompton and Presto are Single Speed, and also lack a rear brake.
    It could be that they don't have a rear brake due to using a fixed gear setup. That's what I'm assuming anyway, I could be wrong.
    Edward Wong III
    2008 Qile Duo VSTII Single Speed 20" Folder (Converted from a 5 speed)
    2012 Greenzone Value Edition 7 Speed 20" Folder

  8. #8
    my nice bike is at home kraftwerk's Avatar
    Join Date
    Feb 2006
    Location
    Brooklyn, NY
    My Bikes
    2011 BMC Race Machine / Colnago ct 1 / 80's Rossin / 90's Merlin/ 70's Raleigh 20/ Swift folder, etc.
    Posts
    654
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I would like to see more of these bikes which weigh less than the rest.
    Makes sense to have a light folder. Something I think about as I lug my Raleigh 20 around the globe....

  9. #9
    Senior Member
    Join Date
    Mar 2008
    Posts
    203
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Light weight is essential for portability- and why should we ride folders if we don't care about portability?

    I really hope that dahon reintroduce a single speed (or fixed) version of presto lite.

  10. #10
    Senior Member randya's Avatar
    Join Date
    Jul 2003
    Location
    in bed with your mom
    My Bikes
    who cares?
    Posts
    13,696
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    sorry, but they look expensive, impractical and uncomfortable

  11. #11
    Bicycle Repair Man !!! Sixty Fiver's Avatar
    Join Date
    Sep 2007
    Location
    YEG
    My Bikes
    See my sig...
    Posts
    25,753
    Mentioned
    13 Post(s)
    Tagged
    2 Thread(s)
    Quote Originally Posted by kraftwerk View Post
    I would like to see more of these bikes which weigh less than the rest.
    Makes sense to have a light folder. Something I think about as I lug my Raleigh 20 around the globe....
    My Phillip's 20 lost 12 pounds when I converted it to a fixed road bike and still has it's original fork and stem... the fenders went back on as did a rear rack and a Wright's saddle.

  12. #12
    my nice bike is at home kraftwerk's Avatar
    Join Date
    Feb 2006
    Location
    Brooklyn, NY
    My Bikes
    2011 BMC Race Machine / Colnago ct 1 / 80's Rossin / 90's Merlin/ 70's Raleigh 20/ Swift folder, etc.
    Posts
    654
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    My folding twenty with no original parts what so ever, weighs over 20 lbs... 25? I forget now..

  13. #13
    hipster traffic dodger ChiapasFixed's Avatar
    Join Date
    Dec 2007
    My Bikes
    IRO Mark V Pro, home made bamboo track bike, eddy merckx corsa extra, Airnimal Joey commute, UGADA Tikit
    Posts
    596
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I seem to remember seeing a 7kh tikit on a Japanese website somewhere....
    IRO Mark V Pro, home made bamboo track bike, eddy merckx corsa extra, Airnimal Joey, UGADA Tikit

  14. #14
    Bicycle Repair Man !!! Sixty Fiver's Avatar
    Join Date
    Sep 2007
    Location
    YEG
    My Bikes
    See my sig...
    Posts
    25,753
    Mentioned
    13 Post(s)
    Tagged
    2 Thread(s)
    Quote Originally Posted by kraftwerk View Post
    My folding twenty with no original parts what so ever, weighs over 20 lbs... 25? I forget now..
    The stock weight on a Twenty is actually just a little over 35 pounds... with some work you can get them down into the low twenties and have a bike that can handle apocalyptic riding conditions.

    You will always be limited by that frame which weighs something like 8 or 9 pounds... the integrated kickstand weighs a full pound by itself.

  15. #15
    New usename ThorUSA brakemeister's Avatar
    Join Date
    Nov 2004
    Location
    Southern Illinois USA
    Posts
    2,469
    Mentioned
    0 Post(s)
    Tagged
    1 Thread(s)
    I like this stuff .. no doubt ...
    However, I would be careful with the weights provided by the proud owner ( who just dumped 2 grand into his bike ) .... sometimes its a little wishful thinking, manufacturers are bad enough ...lol

    I have seen bikes hanging on scales at Tradeshows , just that if you took the bike off the scale the scale was showing MINUS 3 lbs ...

    Bikes with no inner wires in brakes and derrailleurs... middle /low end bikes with Columbus SL tubing which in production was more a hi ten "gas"pipe and 4 times as heavy ...

    than we had those CLB alloy outer housing brakecables... they didnt really work as the alloy housing dekompressed awfully and made the brakes BARELY work.... every year before the show season a handfull of BIG names in the industry would order a handfull ....
    price was no issue... ( I did make a killing on them as long as they lasted )

    :-)
    Its almost as good as all the "just riding along" stories

    but back to folding bike po..



    thor

Posting Permissions

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