Brompton Frame Hinges
#1
Good Ship Ruffles
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Brompton Frame Hinges
Hi,
My Brompton is now two and a half years old and used every day.
On the free service, about nine months after I bought it, 'On Your Bike' found the folding frame hinge pins worn and sent it back for them to be replaced. Excellent service I thought.
Seems likely that it needs doing again. Don't want the thing to collapse on me. But how much play is too much? I believe it has to go back to the factory so presumably expensive?
Also, if the pins wear, does the frame eventually wear out as well? Or do they use larger pins?
Rob.
My Brompton is now two and a half years old and used every day.
On the free service, about nine months after I bought it, 'On Your Bike' found the folding frame hinge pins worn and sent it back for them to be replaced. Excellent service I thought.
Seems likely that it needs doing again. Don't want the thing to collapse on me. But how much play is too much? I believe it has to go back to the factory so presumably expensive?
Also, if the pins wear, does the frame eventually wear out as well? Or do they use larger pins?
Rob.
Last edited by GoodShipRuffles; 11-05-13 at 06:28 AM.
#2
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Hi,
My Brompton is now two and a half years old and used every day.
On the free service, about nine months after I bought it, 'On Your Bike' found the folding frame hinge pins worn and sent it back for them to be replaced. Excellent service I thought.
Seems likely that it needs doing again. Don't want the thing to collapse on me. But how much play is too much? I believe it has to go back to the factory so presumably expensive?
Also, if the pins wear, does the frame eventually wear out as well? Or do they use larger pins?
Rob.
My Brompton is now two and a half years old and used every day.
On the free service, about nine months after I bought it, 'On Your Bike' found the folding frame hinge pins worn and sent it back for them to be replaced. Excellent service I thought.
Seems likely that it needs doing again. Don't want the thing to collapse on me. But how much play is too much? I believe it has to go back to the factory so presumably expensive?
Also, if the pins wear, does the frame eventually wear out as well? Or do they use larger pins?
Rob.
#3
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Hi Rob,
My Brompton's top tube hinge broke about a month ago (see my post history for photos). I bought the bike used about 4&1/2 years ago on Craigslist. I suspect part of the problem was I wasn't tightening the clamp enough.
Brompton's tech told me to replace the frame, but with labor+tax (in NYC) that would probably be $1,000ish. Didn't want to spend that to resuscitate, so I rolled the dice and hired a welder. The result was not satisfactory.
Thing is, I was riding it in traffic when it broke, and that freaked my wife out so much that she is now dead set against me buying another. I commute every day in NYC, so she has enough to worry about. So I have retreated at the Battle of Brompton Hinge.
Anyhoo, I suggest you tighten your clamps firmly and that any play is too much. You should talk directly to the Brompton techs about your situation.
Good luck.
My Brompton's top tube hinge broke about a month ago (see my post history for photos). I bought the bike used about 4&1/2 years ago on Craigslist. I suspect part of the problem was I wasn't tightening the clamp enough.
Brompton's tech told me to replace the frame, but with labor+tax (in NYC) that would probably be $1,000ish. Didn't want to spend that to resuscitate, so I rolled the dice and hired a welder. The result was not satisfactory.
Thing is, I was riding it in traffic when it broke, and that freaked my wife out so much that she is now dead set against me buying another. I commute every day in NYC, so she has enough to worry about. So I have retreated at the Battle of Brompton Hinge.
Anyhoo, I suggest you tighten your clamps firmly and that any play is too much. You should talk directly to the Brompton techs about your situation.
Good luck.
#4
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Never dry the bike. Continuous use stops it rusting. It gets a scrub down before I have to maintain it - but only to keep me clean(er). Hinges are well oiled and still oily.
The clamps are always tightened. But only finger tight. I tend to wipe a little oil on the clamp faces so that they don't stick.
As the frame flexes there's bound to be a little movement on the hinge. This will be the source of wear rather than unfolding. It gets folded up four times a day.
I'll take it back to the shop and see if the mechanic thinks it needs doing. Hard to assess unless you service Bromptons every day. There are a LOT of Bromptons in London!
Re: the failed frame. Looks to me as though the hinge hole was drilled off centre. It had cracked before failing judging by the partial corrosion. Anyway I would be amazed if Brompton didn't fix under warranty even if you're not the original owner. Premium price - premium service!
The clamps are always tightened. But only finger tight. I tend to wipe a little oil on the clamp faces so that they don't stick.
As the frame flexes there's bound to be a little movement on the hinge. This will be the source of wear rather than unfolding. It gets folded up four times a day.
I'll take it back to the shop and see if the mechanic thinks it needs doing. Hard to assess unless you service Bromptons every day. There are a LOT of Bromptons in London!
Re: the failed frame. Looks to me as though the hinge hole was drilled off centre. It had cracked before failing judging by the partial corrosion. Anyway I would be amazed if Brompton didn't fix under warranty even if you're not the original owner. Premium price - premium service!
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Never dry the bike. Continuous use stops it rusting. It gets a scrub down before I have to maintain it - but only to keep me clean(er). Hinges are well oiled and still oily.
The clamps are always tightened. But only finger tight. I tend to wipe a little oil on the clamp faces so that they don't stick.
As the frame flexes there's bound to be a little movement on the hinge. This will be the source of wear rather than unfolding. It gets folded up four times a day.
I'll take it back to the shop and see if the mechanic thinks it needs doing. Hard to assess unless you service Bromptons every day. There are a LOT of Bromptons in London!
Re: the failed frame. Looks to me as though the hinge hole was drilled off centre. It had cracked before failing judging by the partial corrosion. Anyway I would be amazed if Brompton didn't fix under warranty even if you're not the original owner. Premium price - premium service!
The clamps are always tightened. But only finger tight. I tend to wipe a little oil on the clamp faces so that they don't stick.
As the frame flexes there's bound to be a little movement on the hinge. This will be the source of wear rather than unfolding. It gets folded up four times a day.
I'll take it back to the shop and see if the mechanic thinks it needs doing. Hard to assess unless you service Bromptons every day. There are a LOT of Bromptons in London!
Re: the failed frame. Looks to me as though the hinge hole was drilled off centre. It had cracked before failing judging by the partial corrosion. Anyway I would be amazed if Brompton didn't fix under warranty even if you're not the original owner. Premium price - premium service!
Cheers
Wayne
#6
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I will admit that this has got me a little concerned. I've had my Brompton a couple of months now and I'm out on it just about every day. I'm not concerned about rusting as I live in a desert climate. Very dry with hardly any rain, well compared to most places around the world. When it does rain, I simply don't go out if I don't need to, and I'm likely not going to need to unless a sneaky rain cloud makes its appearance while I'm out riding. In effect then, my bike gets folded and unfolded about 2 to 3 times a day. I snug up the clamps, but not over tight. I'm wondering, then, if I should simply leave the bike unfolded until it needs to be folded. I can leave the bike in the house without having to fold it up. If I do that, would the hinges last longer? I can't afford to replace an expensive bike like this in two years, or for that matter, have it repaired.
Cheers
Wayne
Cheers
Wayne
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Cheers
Wayne
#8
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Not fast, not in London , so I'm good ..
Wayne, Can visit the Relocated, London Bridge. it down there somewhere.
Wayne, Can visit the Relocated, London Bridge. it down there somewhere.
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#10
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good you are sampling Desert life on the border, for me , I'll tell you about the winter rains here.
the bridge, here, Is over 4 miles long and connects 2 states. It's painted Green.
the bridge, here, Is over 4 miles long and connects 2 states. It's painted Green.
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