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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.

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Old 02-24-12, 06:56 PM   #1
chagzuki
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Brompton 2012 folding pedal redesign

I've just stumbled upon a couple of pics which indicate that Brompton have redesigned the folding pedal:



http://www.brompton.co.uk/uploads/L1113529.jpg

Looks like another step towards the more organic, curved lines of CAD designed parts. Hopefully it'll weigh a little less with some areas cut away, plus the bolt appears to be an allen key fitting on the standard model.
I can't see any evidence that the bearing is replaceable, however.
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Old 02-25-12, 11:06 AM   #2
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Sure its a replaceable bearing, they didn't pour hot aluminum around it,
the bearing is pressed in, you just have to make an arbor press ,
and a few jigs to press it out again ..
A straight forward shop practice.
Or, just buy this part :
http://www.sjscycles.co.uk/brompton-...rga-prod13734/
the allen key fixing brought out in steel in the same way they did
in the Ti Version is a good thing..

Ground down the edge of a 24mm socket, so I'm OK with my old gear.

wont need to fit Spud Pedals in the field.

Last edited by fietsbob; 05-28-12 at 01:38 PM.
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Old 02-25-12, 12:00 PM   #3
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1 "flaw" i found on using the brompton folding pedals is if first fold the pedals and then fold the bike, the pedals can hit the chainstay and damage the paint.

I mistakely did this and wondered why i could not get it to fold.

brompton should design a stop to prevent the pedal from folding back too far as to prevent paint damage from the pedal hitting the frame when bike and pedal fully folded.
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Old 02-25-12, 07:38 PM   #4
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On the current Bromptons, there is a bump on the left crank arm which prevents the pedal from folding too far.
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Old 05-26-12, 03:47 PM   #5
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Quote:
Originally Posted by jur View Post
On the current Bromptons, there is a bump on the left crank arm which prevents the pedal from folding too far.
What happened to Toango happened to me, which led me to several misguided attempts to DIY paint my own bike; culminating in me paying a someone to re-powder paint my bike at a not-cheap price.

So, if I want to idiot-proof this from happening again (besides selling the bike, lol), do I replace the crank arm only, pedal only, or both?
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Old 05-26-12, 04:22 PM   #6
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Just the LH crank.
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Old 05-27-12, 07:17 PM   #7
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Thanks, LWaB.. now all I got to do is hunt down a 24mm socket wrench
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Old 05-27-12, 10:17 PM   #8
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How about a bit more simple fix rather than buying a whole new LH crank. I use a old clean preferably thick sock to protect both my own older Brompton's chainstay paint, slipping it on when I fold the pedal up. Try it. It works well especially if you are shipping the bike somewhere. Using socks as cushions is not just for Bromptons. The old sock idea works well even with other collapsed bikes.

Last edited by folder fanatic; 05-27-12 at 10:21 PM.
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Old 05-28-12, 11:56 AM   #9
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someone stuck a rubber bumper on the crank arm ,
stick on cabinet/box feet come from your local hadware store.

some pictures on Yahoo Brompton group site.

no bump on my Schlumpf crankarms..
seem to be, careful folding does not make paint chips.

tape and old inner tube, over potential hits,
is always able to be done..

Last edited by fietsbob; 05-28-12 at 12:02 PM.
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Old 05-28-12, 12:10 PM   #10
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I've got the old cranks without protruding stop thingy and have just switched to some Ultegra cranks anyway. I don't seem to have this problem; it only happens if you fold in the wrong order, and most of my frame is covered in helicopter tape so it wouldn't scratch if it were to happen.
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Old 05-28-12, 12:28 PM   #11
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Quote:
Originally Posted by chagzuki View Post
I've got the old cranks without protruding stop thingy and have just switched to some Ultegra cranks anyway. I don't seem to have this problem; it only happens if you fold in the wrong order, and most of my frame is covered in helicopter tape so it wouldn't scratch if it were to happen.
Yeah, it only happens if you fold the pedal before swinging the rear triangle under, while the folding pedal is in the 3:00 to 9:00 position.

Re: OP - is that pedal different from the 2011 pedal? It looks about the same to me.
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Old 05-28-12, 01:24 PM   #12
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To my eye,
http://www.sjscycles.co.uk/brompton-...pedf-prod2922/
reflector different, machined off a couple grams of aluminum,
from the square face Fore and Aft. vs 2011, the square one:
http://www.bikeforums.net/showthread...7#post14281737

and plastic center latch panel mech slightly different.

new pedal core plug appears to be broached straight thru.
so hex hole is straight thru it.
http://www.sjscycles.co.uk/brompton-...olt-prod13730/

Last edited by fietsbob; 05-28-12 at 01:34 PM.
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Old 05-28-12, 01:50 PM   #13
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Quote:
Originally Posted by folder fanatic View Post
How about a bit more simple fix rather than buying a whole new LH crank. I use a old clean preferably thick sock to protect both my own older Brompton's chainstay paint, slipping it on when I fold the pedal up. Try it. It works well especially if you are shipping the bike somewhere. Using socks as cushions is not just for Bromptons. The old sock idea works well even with other collapsed bikes.
+1! protects so many different parts, and there's often endless supply of orphaned socks around the house!
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Old 05-28-12, 05:18 PM   #14
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I was told by Brompton the new pedal is broader and reinforced, so slightly heavier. The allen socket bolt and washer are lighter so overall weight remains around the same. Weight weenies can stick with the old pedal but buy the new bolt.
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Old 05-29-12, 09:44 AM   #15
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Real weight weenies use non folding pedals , with More Titanium.
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