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Easy Hinge Clamp for Brompton

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Old 08-26-10, 07:36 AM
  #1  
Amuro Lee
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Easy Hinge Clamp for Brompton


http://translate.google.com/translat...o%2F11_36.html
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Old 08-26-10, 08:49 AM
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mulleady
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How is it different? Sorry forgive my ignorance!
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Old 08-26-10, 09:34 AM
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Well it does come in three attractive shades, and it does have a nice spring
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Old 08-26-10, 10:26 AM
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It has a spring on the bolt to pop the clamp away from the clamped whatever as soon as you've loosened the screw enough. The standard clamp requires you to not only unscrew the bolt, but also manually pull the clamp out to free it. It's a convenience feature. Possibly a cheap DIY mod if you can find springs of the right size and compressibility.
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Old 08-26-10, 11:09 AM
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+1 Chop the colours, one suits my raw lacquer lol!
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Old 08-26-10, 02:49 PM
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Seems like a neat trick! I sometimes nick the paint if I open and close too quickly so this would eliminate that effect!
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Old 08-28-10, 05:50 AM
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Originally Posted by mulleady View Post
How is it different? Sorry forgive my ignorance!
The clamp is also slightly longer on one side. So as you unscrew it, the spring pushes the clamp out, and the slightly longer side keeps the clamp oriented. It doesn't rotate around, so it leads to a much cleaner, faster clamp/unclamp method. Nice!
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Old 09-13-10, 03:30 AM
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Unfortunately the company is only selling to the domestic market at this point, not internationally.
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Old 09-13-10, 05:14 PM
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dremel+big spring=same effect. They should license it to BromptonProper. Like I should with my stem QR hack...
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Old 09-19-10, 09:38 AM
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Originally Posted by LWaB View Post
Unfortunately the company is only selling to the domestic market at this point, not internationally.
These guys do

http://brompfication.com/22-hinge-clamp-set.html

quite stylish bolts as well...

Love my Kamoya clamps somebody brought me from Japan...
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Old 06-11-14, 05:34 AM
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Originally Posted by LWaB View Post
Unfortunately the company is only selling to the domestic market at this point, not internationally.
Currently, they ARE. bring sold internationally, viz. in Malaysia.
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Old 06-11-14, 05:39 AM
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Originally Posted by LowIQ View Post
These guys do

http://brompfication.com/22-hinge-clamp-set.html

quite stylish bolts as well...

Love my Kamoya clamps somebody brought me from Japan...
I am in Bangkok now and trying to contact Brompfication directly. They are sold through dealers but I like to meet inventors and see what else they carry or have in the works.

My question is how do the Thai-made (?) alternative titanium hinge clamps compare to the aluminum ones sold in Japan? And, on the face of it, I agree with the earlier poster - why not just add a spring to the current originals, whether real Brompton or knock- off. I am both fascinated and disgusted by the concept. How Romanian dictator - gold-plated toilets next!

Where do I buy Kamoya ones in Tokyo?
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Old 06-13-14, 05:04 PM
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Been looking at these on eBay. Looks like the newest twist on these is that on the side of the clamp that is longer, they've imbedded a neodymium magnet so that the longer end sticks to the frame. I'm actually tempted to try it out, but $85+ is a steep price for admission.

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Old 06-13-14, 08:16 PM
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Buy a spring , and file down one side of the stock pac-man and there you are..
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Old 06-13-14, 10:39 PM
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Originally Posted by tk1971 View Post
Been looking at these on eBay. Looks like the newest twist on these is that on the side of the clamp that is longer, they've imbedded a neodymium magnet so that the longer end sticks to the frame. I'm actually tempted to try it out, but $85+ is a steep price for admission.

I cannot recommend these. See the 2nd last pic in the eBay description, showing the new and original clamp's inside side by side? You can see the Brompton clamp is wider in the middle while the new one is straight. That slight widening in the middle is there for a reason: It ensures that the outside corners of the clamp are forced together. That is crucially important for firm clamping. When I used a Brompfication clamp, I found the frame wobbled a bit. That clamp was the reason. Went back to the old clamp and all is right.
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Old 07-21-14, 02:16 PM
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Has any one tried these Bike Gang They look to be a less expensive alternative but I can see the case for light springs.
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Old 07-21-14, 02:53 PM
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Originally Posted by Schwinnsta View Post
Has any one tried these Bike Gang They look to be a less expensive alternative but I can see the case for light springs.
haha! i knew it was only a matter of time before someone put out a version of the clamp with a kohler faucet handle


so many possibilities...



notice how, in the ridea knob, the left side is smaller and both sides are more ergonomic than in previous solutions we've seen. i suspect the next iteration will be the obvious, single-sided twiddle-knob.



design development takes time, even when the "ultimate solution" seems self-evident and obvious.



*frog life cycle development graphic intended as a humorous graphic parallel only. no disparagement of frogs or their life cycle was intended.

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Old 07-21-14, 03:29 PM
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Has any one got the new frog clamp.....
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Old 07-21-14, 04:46 PM
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I think this is the first time I've seen "frog" and "Brompton" in the same thread. Impressive.
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Old 07-21-14, 04:53 PM
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I find it useful to have my thumb across the handle to snug the 'pac-man' down properly..
kitchen faucet is another story..

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Old 07-21-14, 07:51 PM
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Originally Posted by bhkyte View Post
Has any one got the new frog clamp.....
only brass, though. i'm currently working on one for keyven. of course, it will be much more aero and 3-d printed in titanium. probably retail for around 300usd.

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Old 07-21-14, 08:07 PM
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Originally Posted by bobw View Post
The clamp is also slightly longer on one side. So as you unscrew it, the spring pushes the clamp out, and the slightly longer side keeps the clamp oriented. It doesn't rotate around, so it leads to a much cleaner, faster clamp/unclamp method. Nice!
Yes it took me a week to realize this. I thought Brompfication had given me a dud, but actually I had simply installed it wrongly. If only they worded their manual in a way the layman can understand

It may not sound like a lot, but the weight savings (minimal) and more importantly, the fact that the clamp stays aligned after unfolding really makes a big difference to the predictability of the fold. Plus, the look - shiny brass handle with black contrast clamp - is fantastic IMO.
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Old 07-21-14, 08:11 PM
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Originally Posted by smallwheeler View Post
only brass, though. i'm currently working on one for keyven. of course, it will be much more aero and 3-d printed in titanium. probably retail for around 300usd.

Indeed, I will gladly pay double for such sweet, sweet bling for my Brompton.
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Old 07-21-14, 11:29 PM
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How can we miss the frog style clamp lever (evolution ultima), working on it right away!
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Old 07-21-14, 11:37 PM
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Originally Posted by Schwinnsta View Post
Has any one tried these Bike Gang They look to be a less expensive alternative but I can see the case for light springs.
I did, and the pair of clamp plates come with two springs. you can even attach a leash on the Ridea lever to walk your brommie.


Last edited by bike.gang.uk; 07-21-14 at 11:41 PM.
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