UK and Europe · Public discussion

Brompton Durability

Started by Sam Salt · · Last activity · 27 posts · 832 views

Thread navigation

Jump through the discussion

Go to the original post, the replies on this page, or the latest preserved contribution.

Thread details

What we know about this thread

Original section
UK and Europe
Published
6 June 2006
Last activity
7 June 2006
Original author
Sam Salt
Posts
27
Discussion status
Public discussion
Total views
832
Views / 30 days
0

The navigation and discussion metadata provide context. Posts remain in their original chronological order.

Showing posts 21–27 of 27
Posts remain in their original chronological order.

Text size
  1. daren said:
    Sam Salt said:

    My wife has a Brompton ( well we share it )that is just coming up to two
    years old.Whilst I love riding it I do feel that the quality of the
    components and the finish leave a little to be desired.

    The green paintwork chips just by looking at it.It went back to Brompton
    about 3 months after purchase as I was dissatisfied but they said it was
    OK.I had put clear tape over some areas subject to cable rub,Brompton
    said these weren't necessary so I removed them and lo and behold the
    paint on the front stem rubbed down to bare metal in a short period of time.

    You need a black one. Touch ups are trivial on mine

    Quoted message said:

    The spokes on the rear wheel have broken twice and the mudguard stays
    have long ago started to rust along with the fixing bolts.Under the
    mudguard stay bolts has become milky white as if there is some corrosion
    going on.

    Went off-road with mine at the weekend (along a bridlepath). Have never
    broken a spoke, but keeping up with son's MTB was not easy.

    Quoted message said:

    I just feel it is a shame that such a splendid little bike ( but not
    particularly cheap ) should be let down by poor quality components.

    Problems with mine have been

    1) water staining of the shiny mudguards - due to stresses on rear
    (it's an L6 so the guard takes a pound under folding). They were
    replaced but I can't be bothered again. Going to switch to black ones

    2) The SA threespeed hub has dulled and shows a little rust.

    Perhaps you've been unlucky.

    regards,
    daren


    Brommies used on seagoing yachts quickly look worse for wear. Something
    suggest the OP's bike sees a lot of a Salt too😉
    --
    ---
    Marten Gerritsen

    INFOapestaartjeM-GINEERINGpuntNL
    www.m-gineering.nl

  2. M-gineering said:


    bloody thick (#13) spokes to compensate for improper wheelbuilding.
    Build the wheel with care, maybe with washers to compensate for the
    narrow flanges and the wheel should be very strong.

    Thick spokes are not the answer to breakage or improper wheelbuilding.
    Normal butted spokes are better and improper wheelbuilding should be
    corrected. YMMV

    --
    Tony

    "Anyone who conducts an argument by appealing to authority is not using
    his intelligence; he is just using his memory."
    - Leonardo da Vinci

  3. Tony Raven said:

    Thick spokes are not the answer to breakage or improper wheelbuilding.

    According to Jobst Brandt, thinner, swaged (butted) spokes make a
    stronger wheel because they spread the load over a larger section of the
    rim.

    I have no way of verifying this... but it sounds impressive if you say
    it in an authoritative tone. :-)

    d.

  4. M-gineering said:
    daren said:
    Sam Salt said:

    My wife has a Brompton ( well we share it )that is just coming up to two
    years old.Whilst I love riding it I do feel that the quality of the
    components and the finish leave a little to be desired.

    The green paintwork chips just by looking at it.It went back to Brompton
    about 3 months after purchase as I was dissatisfied but they said it was
    OK.I had put clear tape over some areas subject to cable rub,Brompton
    said these weren't necessary so I removed them and lo and behold the
    paint on the front stem rubbed down to bare metal in a short period
    of time.

    You need a black one. Touch ups are trivial on mine

    Quoted message said:

    The spokes on the rear wheel have broken twice and the mudguard stays
    have long ago started to rust along with the fixing bolts.Under the
    mudguard stay bolts has become milky white as if there is some corrosion
    going on.

    Went off-road with mine at the weekend (along a bridlepath). Have never
    broken a spoke, but keeping up with son's MTB was not easy.

    Quoted message said:

    I just feel it is a shame that such a splendid little bike ( but not
    particularly cheap ) should be let down by poor quality components.

    Problems with mine have been

    1) water staining of the shiny mudguards - due to stresses on rear
    (it's an L6 so the guard takes a pound under folding). They were
    replaced but I can't be bothered again. Going to switch to black ones

    2) The SA threespeed hub has dulled and shows a little rust.

    Perhaps you've been unlucky.

    regards,
    daren


    Brommies used on seagoing yachts quickly look worse for wear. Something
    suggest the OP's bike sees a lot of a Salt too😉

    Yes I like that one ,lol.

    If you infer that I am a lard [censored] causing spokes to break, then the
    answer is no I am afraid I aren't.

    Sam Salt

  5. Sam Salt said:

    If you infer that I am a lard [censored] causing spokes to break, then the
    answer is no I am afraid I aren't.

    But only the first spoke can really be blamed on the builder. When you
    get it fixed you ask the wheelmonger to check, true and tension the
    wheel and then any subsequent problems are the wheelmonger's or yours if
    you ride into big holes regularly.

    Pete.
    --
    Peter Clinch Medical Physics IT Officer
    Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
    Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
    net [email hidden] http://www.dundee.ac.uk/~pjclinch/

  6. Peter Clinch said:
    Sam Salt said:

    If you infer that I am a lard [censored] causing spokes to break, then the
    answer is no I am afraid I aren't.

    But only the first spoke can really be blamed on the builder. When you
    get it fixed you ask the wheelmonger to check, true and tension the
    wheel and then any subsequent problems are the wheelmonger's or yours if
    you ride into big holes regularly.

    not entirely true i'm afraid. Spokes break due to fatigue. Unless the
    wheelmonger rebuilds the wheel with new spokes, you're still stuck with
    a whole bunch of spokes which have seen similar loads which caused one
    to fail. The other spokes will probably fail too. You're hoping the
    distribution is such that they will fail a lot later.
    --
    ---
    Marten Gerritsen

    INFOapestaartjeM-GINEERINGpuntNL
    www.m-gineering.nl

  7. davek said:
    Tony Raven said:

    Thick spokes are not the answer to breakage or improper wheelbuilding.

    According to Jobst Brandt, thinner, swaged (butted) spokes make a
    stronger wheel because they spread the load over a larger section of the
    rim.

    I have no way of verifying this... but it sounds impressive if you say
    it in an authoritative tone. :-)

    The tone doesn't impress me much, but occasionally JB gets it right 😉

    Butted spokes have a smaller cross-section and have to stretch further
    to achieve the same load on the rim. Which means they can spring back
    further than the heavy spoke, and will still support the elasticaly
    deformed rim when the thick spoke would be ratling loose in the spokehole.
    A cyclic load going to zero is much worse fatiguewise for a spoke than a
    cyclic load with the same amplitude where the spoke is in tension the
    whole time.

    --
    ---
    Marten Gerritsen

    INFOapestaartjeM-GINEERINGpuntNL
    www.m-gineering.nl

Active in the last 60 minutes

Active in this thread

0 users · 0 guests ·0 bots ·0 total

No signed-in users are active right now.

No known search crawlers active right now.