Go Back  Bike Forums > Bike Forums > Folding Bikes
Reload this Page >

Easy Hinge Clamp for Brompton

Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

Easy Hinge Clamp for Brompton

Reply

Old 07-22-14, 12:19 AM
  #26  
keyven
Senior Member
 
Join Date: Oct 2013
Location: Singapore
Posts: 1,136

Bikes: Fully customized 11-spd MTB built on 2014 Santa Cruz 5010 frame; Brompton S2E-X 2014; Brompton M3E 2014

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Genius! Thanks for the idea! I'll probably use a knotted shoelace for my leash lol.
keyven is offline  
Reply With Quote
Old 07-22-14, 03:19 PM
  #27  
bhkyte
Senior Member
 
bhkyte's Avatar
 
Join Date: Sep 2008
Location: York UK
Posts: 3,020

Bikes: 2X dualdrive Mezzo folder,plus others

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
I have realised that my mezzo and birdie bikes will never be able to be retro fitted with a frog clamp....

Is life worth going on with.....

Downtube to the rescue.

Last edited by bhkyte; 07-22-14 at 04:04 PM.
bhkyte is offline  
Reply With Quote
Old 07-23-14, 05:45 AM
  #28  
cpg
Senior Member
 
cpg's Avatar
 
Join Date: Apr 2012
Location: Nottingham
Posts: 437

Bikes: Mezzo I4, Trek 1200, Rudge (Montague) BiFrame, Bickerton

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
If only I had seen the frog clamp before making my Bickerton clamp
cpg is offline  
Reply With Quote
Old 07-29-14, 12:25 PM
  #29  
wildpanda86
Senior Member
 
Join Date: Feb 2008
Posts: 55
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Originally Posted by jur View Post
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.
Anyone else have this same problem?

I don't have a Brompification clamp, but I have another similar aftermarket design titanium clamps and titanium lever bolts...

With the aftermarket clamps I notice that they come loose a full turn during my 5 mile commute and gets to the point that the frame will wobble and make knocking sounds as it works itself fully loose.

I've also tried it with using the OE clamps and aftermarket titanium levers... same thing... the levers still work its way loose....

Now that I have the stock clamps and bolts back on, the frame stays nice and solid, the oe plastic levers stay snug and don't budge even during the 40 mph downhill portion of my commute.

Really love how the aftermarket clamps and levers look on my Raw Lacquer bike... but the OE stuff seems to be much more functional... am I using them wrong?
wildpanda86 is offline  
Reply With Quote
Old 07-29-14, 07:33 PM
  #30  
keyven
Senior Member
 
Join Date: Oct 2013
Location: Singapore
Posts: 1,136

Bikes: Fully customized 11-spd MTB built on 2014 Santa Cruz 5010 frame; Brompton S2E-X 2014; Brompton M3E 2014

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Originally Posted by wildpanda86 View Post
Anyone else have this same problem?

I don't have a Brompification clamp, but I have another similar aftermarket design titanium clamps and titanium lever bolts...

With the aftermarket clamps I notice that they come loose a full turn during my 5 mile commute and gets to the point that the frame will wobble and make knocking sounds as it works itself fully loose.

I've also tried it with using the OE clamps and aftermarket titanium levers... same thing... the levers still work its way loose....

Now that I have the stock clamps and bolts back on, the frame stays nice and solid, the oe plastic levers stay snug and don't budge even during the 40 mph downhill portion of my commute.

Really love how the aftermarket clamps and levers look on my Raw Lacquer bike... but the OE stuff seems to be much more functional... am I using them wrong?
I bought the Brompfication clamps and they work fine IMO. Of course, I initially had them installed incorrectly so there was no difference in utility except looking sweet. I figured out my mistake a week later and now folding/unfolding is A LOT easier, since the clamps are consistently aligned all the time.

It's definitely a simple change that Brompton should apply in their next version.
keyven is offline  
Reply With Quote
Old 07-29-14, 07:56 PM
  #31  
smallwheeler
Senior Member
 
smallwheeler's Avatar
 
Join Date: Aug 2012
Location: NYC
Posts: 2,390
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 150 Post(s)
Originally Posted by keyven View Post
I bought the Brompfication clamps and they work fine IMO. Of course, I initially had them installed incorrectly so there was no difference in utility except looking sweet. I figured out my mistake a week later and now folding/unfolding is A LOT easier, since the clamps are consistently aligned all the time.

It's definitely a simple change that Brompton should apply in their next version.
i'll PM you an address where you can send all the parts you've taken off your bikes. thanks in advance.
smallwheeler is offline  
Reply With Quote
Old 07-29-14, 08:21 PM
  #32  
keyven
Senior Member
 
Join Date: Oct 2013
Location: Singapore
Posts: 1,136

Bikes: Fully customized 11-spd MTB built on 2014 Santa Cruz 5010 frame; Brompton S2E-X 2014; Brompton M3E 2014

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Originally Posted by smallwheeler View Post
i'll PM you an address where you can send all the parts you've taken off your bikes. thanks in advance.
Oh my, I've melted them all in my cauldron. I'd be happy to send you the goo though.
keyven is offline  
Reply With Quote
Old 07-29-14, 08:31 PM
  #33  
smallwheeler
Senior Member
 
smallwheeler's Avatar
 
Join Date: Aug 2012
Location: NYC
Posts: 2,390
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 150 Post(s)
Originally Posted by keyven View Post
Oh my, I've melted them all in my cauldron. I'd be happy to send you the goo though.
somehow, i suspected you would have a cauldron...
smallwheeler is offline  
Reply With Quote
Old 07-29-14, 09:21 PM
  #34  
alienbogey
Senior Member
 
alienbogey's Avatar
 
Join Date: Aug 2010
Location: Western Washington, USA
Posts: 97

Bikes: Specialized Crosstrail Sport Disc, Brompton M6

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I like my Bompfication clamps and they've never loosened on their own.
alienbogey is offline  
Reply With Quote
Old 07-30-14, 12:55 PM
  #35  
wildpanda86
Senior Member
 
Join Date: Feb 2008
Posts: 55
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Originally Posted by keyven View Post
I bought the Brompfication clamps and they work fine IMO. Of course, I initially had them installed incorrectly so there was no difference in utility except looking sweet. I figured out my mistake a week later and now folding/unfolding is A LOT easier, since the clamps are consistently aligned all the time.

It's definitely a simple change that Brompton should apply in their next version.
Originally Posted by alienbogey View Post
I like my Bompfication clamps and they've never loosened on their own.

I had mine installed correctly so that they stay aligned all the time... and had them snug down however they still worked its way loose.

How tight do I need them to be?

The OE clamps just need to be pushed tight with the pressure of one finger and they stay snug the for my whole ride... and once snug down the OE clamps seem to want to resist un tightening.

The aftermarket clamps and levers would seem to easily loosen (vs the oe) with just a little finger pressure even though they are snugged down more.

The ones I have aren't the Brompification ones however another one that has the same design
wildpanda86 is offline  
Reply With Quote
Old 07-30-14, 01:48 PM
  #36  
alienbogey
Senior Member
 
alienbogey's Avatar
 
Join Date: Aug 2010
Location: Western Washington, USA
Posts: 97

Bikes: Specialized Crosstrail Sport Disc, Brompton M6

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by wildpanda86 View Post
I had mine installed correctly so that they stay aligned all the time... and had them snug down however they still worked its way loose.

How tight do I need them to be?

The OE clamps just need to be pushed tight with the pressure of one finger and they stay snug the for my whole ride... and once snug down the OE clamps seem to want to resist un tightening.

The aftermarket clamps and levers would seem to easily loosen (vs the oe) with just a little finger pressure even though they are snugged down more.

The ones I have aren't the Brompification ones however another one that has the same design
I don't believe I'm snugging them down any harder than I did the OEM clamps, but I'm certain that they're not loosening over the course of rides of up to 40 miles at a time.

Perhaps your aftermarket clamps aren't exactly like Brompification's.
alienbogey is offline  
Reply With Quote
Old 01-19-18, 09:00 AM
  #37  
Winfried
Senior Member
 
Winfried's Avatar
 
Join Date: Aug 2011
Location: Paris, France
Posts: 1,622
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 204 Post(s)
At this point in time, what are the alternative hinge clamps that are faster to loosen/tighten that Brompton's ?

Thank you.
Winfried is offline  
Reply With Quote
Old 01-19-18, 01:41 PM
  #38  
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 34,947

Bikes: 8

Mentioned: 126 Post(s)
Tagged: 0 Thread(s)
Quoted: 4885 Post(s)
Seen, one approach a magnet and a shorter side on the 'pacman. clamp, and a spring under it,

and a stop on the end of the bolt with the T handle to pre set how far you in screw it out so you can spin it without paying attention.

that combines to make it faster to use..
fietsbob is offline  
Reply With Quote
Old 01-22-18, 03:24 AM
  #39  
bike.gang.uk
Senior Member
 
bike.gang.uk's Avatar
 
Join Date: Jul 2014
Location: Newcastle upon Tyne, England
Posts: 253

Bikes: Brompton H3L, RAF, M3L, Dahon, Giant NRS, GT

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
Originally Posted by Winfried View Post
At this point in time, what are the alternative hinge clamps that are faster to loosen/tighten that Brompton's ?

Thank you.
One more feature added to the rather "De facto Standard" hinge clamp set. Quite affordable too...

bike.gang.uk is offline  
Reply With Quote
Old 01-22-18, 03:48 AM
  #40  
bike.gang.uk
Senior Member
 
bike.gang.uk's Avatar
 
Join Date: Jul 2014
Location: Newcastle upon Tyne, England
Posts: 253

Bikes: Brompton H3L, RAF, M3L, Dahon, Giant NRS, GT

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
Another smart design is discard the spring by utilizing an O ring or C-clip. Cleaner and more precise...

26993307_2109439972406190_5754910265571002221_n.jpg
bike.gang.uk is offline  
Reply With Quote
Old 01-22-18, 05:32 AM
  #41  
Winfried
Senior Member
 
Winfried's Avatar
 
Join Date: Aug 2011
Location: Paris, France
Posts: 1,622
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 204 Post(s)
Thanks for the info on SpēdDial (although using an odd character in their name doesn't help when googling for it.)

What are those third-party clamps with an O ring?

--
Edit:

74.00
https://www.ecwid.com/store/bikegang...tegory=9803294

Last edited by Winfried; 01-23-18 at 07:35 AM.
Winfried is offline  
Reply With Quote
Old 01-22-18, 11:59 AM
  #42  
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 34,947

Bikes: 8

Mentioned: 126 Post(s)
Tagged: 0 Thread(s)
Quoted: 4885 Post(s)
Probably what he sells..
fietsbob is offline  
Reply With Quote
Old 01-27-18, 04:27 PM
  #43  
odiolalluvia
Senior Member
 
Join Date: Sep 2017
Posts: 82
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 16 Post(s)
Also a big fan of the spedial. Could use a more easily googlable name tho. that's for sure. I find the plastic the manufacturer uses matches the Brompton plastic pretty well and it's a lot less expensive than all the other alternatives I've seen. At some point, Brompton should really redesign their own hinge clamps to support the features of all these upgrades. It makes it so much easier for new Brompton owners especially.
odiolalluvia is offline  
Reply With Quote
Old 01-27-18, 10:59 PM
  #44  
avole
Logic free zone
 
avole's Avatar
 
Join Date: Dec 2017
Location: France
Posts: 543

Bikes: Brompton, Time, Bianchi, Jan Janssen, Peugeot

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 316 Post(s)
Anyone checked with a stop watch how much time is saved?
avole is offline  
Reply With Quote
Old 01-28-18, 11:56 AM
  #45  
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 34,947

Bikes: 8

Mentioned: 126 Post(s)
Tagged: 0 Thread(s)
Quoted: 4885 Post(s)
Are they disallowed at the BWC ?, which is an old style 'LeMans start', running to your folded bike, then unfolding it, to start the race?
fietsbob is offline  
Reply With Quote
Old 01-28-18, 12:44 PM
  #46  
odiolalluvia
Senior Member
 
Join Date: Sep 2017
Posts: 82
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 16 Post(s)
that's a good question. i'll have to ask our Brompton rep. We sell these at my shop and I can say that I would put these on my Brompton if I bought one. We sell other upgrades as well that are functionally similar but they're way more expensive. Fancy looking stuff with titanium clamps and all that, but I'm not in the camp of shelling out to take a few grams of weight off any bike except my carbon racer.
odiolalluvia is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service