New bike - but what is this?

elziko
elziko Posts: 41
edited April 2011 in Road beginners
I have just bought a road bike, a BeOne Briza.

All is good but I was wondering - there seems to be a single 5mm(?) allen bolt on the front underside of the top tube.

Can anyone tell me what it is for? I could probably provide a picture if it's not clear exactly what I'm talking about.

Thanks!

Comments

  • Zoomer37
    Zoomer37 Posts: 725
    Bit tricky to see with out a picture, but my guess is its the turbo switch
  • amaferanga
    amaferanga Posts: 6,789
    elziko wrote:
    I have just bought a road bike, a BeOne Briza.

    All is good but I was wondering - there seems to be a single 5mm(?) allen bolt on the front underside of the top tube.

    Can anyone tell me what it is for? I could probably provide a picture if it's not clear exactly what I'm talking about.

    Thanks!

    Eh? Can we have a picture to show where the "front underside of the top tube" is?
    More problems but still living....
  • secretsam
    secretsam Posts: 5,122
    Zoomer37 wrote:
    Bit tricky to see with out a picture, but my guess is its the turbo switch

    Either that, or the button for the lazer to take out stupid super-speedy-too-close motorists 8)

    It's just a hill. Get over it.
  • verloren
    verloren Posts: 337
    I believe it's to attach your race number to.

    '09 Enigma Eclipse with SRAM.
    '10 Tifosi CK7 Audax Classic with assorted bits for the wet weather
    '08 Boardman Hybrid Comp for the very wet weather.
  • elziko
    elziko Posts: 41
    Here's a photo of the bike up-side-down. Looking underneath the toptube at the front end of the bike.

    IMAG0032.jpg
  • ptr_
    ptr_ Posts: 126
    I'm stumped... :?
  • pingpong
    pingpong Posts: 97
    A drain plug of some sort?????? :?:
  • keef66
    keef66 Posts: 13,123
    verloren has it; mounting point for race number
  • elziko
    elziko Posts: 41
    verloren wrote:
    I believe it's to attach your race number to.
    keef66 wrote:
    verloren has it; mounting point for race number

    If that's the case then I suppose you'd have to buy some sort of clip attachment to actually hold the race number? But it does sound the most plausible suggestion so far!
  • secretsam
    secretsam Posts: 5,122
    elziko wrote:
    it does sound the most plausible suggestion so far!

    Apart from my lazer thing

    It's just a hill. Get over it.
  • elziko
    elziko Posts: 41
    SecretSam wrote:
    elziko wrote:
    it does sound the most plausible suggestion so far!

    Apart from my lazer thing

    Yes, I must have missed that. Scrub the silly race number idea!
  • One of my MTB frames had a bolt in the same place, to hold a hose guide if you were running hydraulic brakes ...but I can't see that being the purpose here.
    ........................
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  • navrig
    navrig Posts: 1,352
    That's where you fill the frame with energy drink. Use a long straw to suck it back out.
  • That's just where the spare 5mm Allen bolt is kept. Just like a shirt has spare buttons inside :)
    fellow cyclists please visit - www.justgiving.com/markfaloon
  • mididoctors
    mididoctors Posts: 18,951
    hampsten_88gdt_huffy_number_600.jpg
    "If I was a 38 year old man, I definitely wouldn't be riding a bright yellow bike with Hello Kitty disc wheels, put it that way. What we're witnessing here is the world's most high profile mid-life crisis" Afx237vi Mon Jul 20, 2009 2:43 pm
  • nakita222
    nakita222 Posts: 341
    Nice picture but hasn't proven much. Different mount altogether
  • Zoomer37 wrote:
    Bit tricky to see with out a picture, but my guess is its the turbo switch

    This is honestly the best answer I have ever heard on this forum =P

    but sorry OP, I have no idea either!!!
    exercise.png
  • skyd0g
    skyd0g Posts: 2,540
    It's the bikes belly-button.









    ...or to attach the race number.
    Cycling weakly
  • jonny_trousers
    jonny_trousers Posts: 3,588
    Gateway to a parallel universe. Adjust it at all of our peril!

    Funnily enough I found a strange little mount on my new bike on only one of the rear stays today and nowhere near anything useful. Maybe they just put them there to keep us guessing.
  • Could it be an attachment for a pump to sit under the top tube?

    I've recently found an extra mysterious bolt on my trek 1.7. It's on the rear of the frame down low ( just above the crank) facing the wheel. I had to remove the rear wheel to take it out to allow a mudguard to slide on..... Weird.
    fellow cyclists please visit - www.justgiving.com/markfaloon
  • secretsam
    secretsam Posts: 5,122
    Va Va Boom wrote:
    Could it be an attachment for a pump to sit under the top tube?

    I've recently found an extra mysterious bolt on my trek 1.7. It's on the rear of the frame down low ( just above the crank) facing the wheel. I had to remove the rear wheel to take it out to allow a mudguard to slide on..... Weird.

    If you don't have a bridge on the chainstays, this could be a mudguard mounting point

    Or it's the lazer button, but in a less convenient place

    It's just a hill. Get over it.