Author Topic: Squeaky Brompton  (Read 1038 times)

quixoticgeek

  • Mostly Harmless
Squeaky Brompton
« on: October 17, 2019, 02:55:01 pm »

My Brompton has gone all Dutch and developed a squeak. I think it's coming from either the hinge, Bottom Bracket, or suspension block.

Before I start randomly applying oil to anything that moves, is there anything on a Brompton that would be damaged by the application of lube (aside from the obvious of handlbar grips, saddle, tyres, and brake surfaces)?

J
--
Beer, bikes, and backpacking
http://b.42q.eu/

Re: Squeaky Brompton
« Reply #1 on: October 17, 2019, 04:40:44 pm »
The suspension block is known for getting squeaky over time.

I don’t think there’s anywhere on a bike where a sensible person might consider putting grease that would cause it harm, but I’m not a mind reader.

Kim

  • Timelord
Re: Squeaky Brompton
« Reply #2 on: October 17, 2019, 05:38:46 pm »
I think it's coming from either the hinge, Bottom Bracket, or suspension block.

According to the universal law of squeaky bicycles, that means it's probably not coming from the hinge, bottom bracket or suspension block.

My favourite misdiagnosed squeak (which was happening approximately every 3 crank rotations, causing me to investigate the chain) turned out to be coming from my lungs.  Good luck!
Careful, Kim. Your sarcasm's showing...

Re: Squeaky Brompton
« Reply #3 on: October 17, 2019, 05:45:27 pm »
Apply furniture polish, rather than grease, to the suspension block to achieve squeak-be-gone.

Re: Squeaky Brompton
« Reply #4 on: October 17, 2019, 06:32:33 pm »
Remove bolt from suspension block.  Slather in silicone grease.  Refit.  It usually works.
And Darkness and Decay and the Coronavirus held illimitable dominion over all.