kamtsa

Not a catastrophic failure but still requires replacement.



Was riding my bike on Santa Cruz pier, it has rough surface, at one point I heard something falling off (now I know it was the reflector) but did not pay attention. Shortly after the pedal felt strange. Don't think I did anything special, just cruising around. I had no problem riding few miles back to the car though. Looks like Brompton cut a 'window' in the pedal edge for the reflector but this weakens it. The other pedal (the folding one) does not have this cut.

Is it possible to buy just the outer metal, not the entire pedal? It is easier to replace it then the entire pedal.

chagzuki

I think you can only get the whole pedal, which is certainly cheap. But that's why it broke .

This is one of the problems of Brompton finally switching out the legacy light plastic components for metal ones, you have to underbuild them otherwise the weight of the bike gets a bit extreme, since the frame is not light.

The bearings went grindy on mine so I took it apart and greased them, only to find that you need a special tool to secure the cone/locknut again. I emailed Brompton about it and they said they're not user-servicable. Ho hum.

badmother

https://www.sjscycles.co.uk/mks-mt-e-...als-prod23666/ or similar system. You get them from cheap- sih up to bling.

https://www.thorusa.com/accessories/pedals.htm#promenade

Great for wheeling the bike in narrow spaces, cramped trains, doorways, and when B is used as a shoppingcart.

fietsbob

common RH thread pedal , when I dont need the folding left one, I screw on both ..

MKS 'Dutch' rubber block pedals with reflectors molded in , are simple classics with serviceable loose ball bearings

Had a folding pedal show stress cracks, a friend has a camera that can take macro closeups,
sending the closeup showing the cracks ( @ 12 & 6:00 ) and company mailed me a new pedal

also got the new allen socket head core too.. There is a RH core too, to use 2 folding pedals ..

so as to be of balanced weight, too ..

kamtsa

I do have spare MKS from my other bike but ended up ordering a replacement Brompton pedal. I plan to replace only the outer piece, not the entire pedal.

If Brompton designed the pedal to break I should accept it with unconditional love.

;-)

fietsbob

wonder how long the screws you loosen to change the cage on the pedal will take to fall out
after you ride the newly 'fixed; pedal for a while..

maybe seek out some flat head Torx screws while you are at it to get them Tight enough..



these are riveted together https://www.sjscycles.co.uk/mks-bm-7-pedals-prod28355/

this is the MKS 'dutch' https://www.sjscycles.co.uk/mks-3000r...als-prod17510/

badmother

This is what we use: https://www.clasohlson.com/uk/Wellgo-...Pedals/31-5112 You also need https://www.clasohlson.com/uk/Wellgo-...hments/31-5113

Strong, light (cro mo and titanium) and cheap.

Clipless: https://www.clasohlson.com/uk/Wellgo-...Pedals/31-5096

bhkyte

Maybe not!

kamtsa

Got a new pedal from nycewheels and replaced the outer frame. The new pedal has a modified and stronger design. At the narrowest point, it is 50% wider (3mm -> 4.65) and the metal sheet is slightly thicker. The attached pictures shows the old frame (top) and new frame (bottom).

2_i 

We replaced our non-foldable RH pedal, that looks like your original, with a foldable Brompton RH pedal. The latter actually lacks cut-outs for the reflectors, just like the standard Brompton LH pedal.

kamtsa

Yes, good idea. The folding pedal is narrower and have the reflectors on the outside, thus no need for cut outs. I installed a Bromfoot on mine, to make it wider like the non folding one.

fietsbob

Brompton mailed me a new folding pedal , after sending a 'fuzz on a Bee's back side' macro close-up photograph
of the stress cracks around the bearing ..