“Please ask permission from your significant other when cleaning bike parts in the sink” - this could be the single most important tip from the video LOL

Your videos are easily the best there are for maintaining a Brompton. I am a complete bike novice, but you always explain things so well that I feel confident trying to adjust/mend things myself! Thank you.

Am totally new to trifolds. This one brilliant educational video had me figure out how a shifter that had no -/+ indicator window changes gears from high to low by just observing the pull of the chain, movement of the derailleur and the sprocket it jumps onto. Thanks a million and please keep it coming! God bless.

This video is amazing! Thank you for posting

As usual - yours are the Go To Videos for maintaining the Brompton - THANK YOU!

I really appreciate that you've made the effort to come back and amend the description on this older video to indicate it doesn't apply to the new 4 spd :)

This was great. Thanks for the tutorial.

Thank you for sharing your videos and skills

fantastic teacher, fantastic information.

Really, really useful and took the mystery out of the Brompton derailleur. Thank you.

Thank you! That just saved me lots of time and frustration.

Thank you for clear explanation and supply of sprocket & chain, along with the tools needed. Took a little bit to find the source of the problem but once adjusted as you described and replacing chain & sprocket - it shifted so smoothly, i didn't even realise.

Thank you! This is gonna be so handy for the rebuild. Glad I didn't lose that little washer.

Another useful and great video.

thanks for putting this out there. really helped me, as a novice, to install a new shifter and anchorage and then get it adjusted. cheers, chris

Excellent video once again 👍

Again a lot of knowledge delivered in an easy to follow way. Thx so much for your videos!

Awesome video, very thorough and helpful. thank you.

Thank you. This video is really helpful!

Thank you for the excellent video - helped sort out the sticking derailleur on my M2L (2018 UK)

Thank you!!! Your videos are so useful and you have a nice way to explain how to do the job.

Thank you my Dear for the video.

Great Video, I have a Brompton Electric. I have just had this problem and couldn’t work out how to adjust the derailleur thanks for the detailed maintenance I have just subscribed

Thank you! Chain fell off my daughter’s Brompton and didn’t know how to get it back on the derailleur. Watched your video and got it back on easily🙂👍

Hi, thanks for all the information shared, I manage to clean the jockey and and adjust the limit screw . it works better now and my better half okay with the sink usage. lol . great video

I ❤your posts. You saved my day again! Will continue to shop from you in return. Thanks a lot.

Very helpful. I suspect I will need to watch this many times.

Thank you so much for the informative instructions👍🏻👍🏻👍🏻

Thank you! Saved me some headaches!

really nice guide ) informative and helped me to fix gear issue on my 6 speed

Great Video interesting. You quickly sorted the problem

Excellent! Thank you for posting.

Thanks so much for the clear explanation. Excellent!

Had an issue with the gear changer/derailleur and your video hit upon all the things you could do to make it right. It worked. Thank you!

Very nicely done! Very clear and pleasant presentation of what can be a complicated mechanism. 😀

Excellentes Videos,très didactiques.Thank you very much

again, thank you very much for sharing all these knowledge with us. your channel is extremely helpful, I was traveling alone earlier this month, and your videos helped me to perform self maintenance when my Brompton malfunctioned!

Best Brompton’s Knowledgeable channel on KZfaq!!!!

Really helpful video. I had similar issue, followed all of the steps but it didn’t improve. Eventually I changed the chain pusher for a new one, there was some wear on the inner channel which I suspect was contributing to the issue. Resolved straight away. I wouldn’t have had the confidence to tackle this job without your video. Thanks.

I really appreciate your videos. Have used your online shop a few times now and will continue to, great that you do so much for Bromptons and Brompton owners. Thank you.

Thank you for this video. It is the only detailed video on how to set up the chain pusher that I have found. You saved me a trip to my local bike shop.

I could listen this your lovely accent all day☺️

Really useful video. Being more accustomed to traditional bikes, and not having had time to take my Brompton to bits, I always assumed it changed gear by witchcraft. Interesting to see how the unconventional derailleur works, thank you.

Thank you so much, had the same problem with my Brompton and could not get the spare parts ( chain pusher and spring, cable) from my local Brompton dealer (tried to get them from Evans but they out of stock plus they sold me a wrong size cable 😳), ordered those parts from brilliant bikes and got free delivered really quick. Excellent customer service!

Ur video is perfect as always! I still couldn’t figure out the issue with my derailleur adjustment .. it’s stuck in the large sprocket ... will try again and see if I can get it right

Great video, thanks! Will be running through this as the Brompton derailleur seems to have stopped working.

Helpful video. Brilliant Bikes is a very good retailer. I buy all my Brompton parts from them.

My chain-pusher wasn't properly functioning as I needed to loosen the 2.5mm bolt fitted to the 'dogleg'. Many thanks for the video and hints.

Thank you very much for this video. I have had my Brompton for over two years--but how to adjust the gear-cable-indicator chain has never really sunk in. Your clear explanation saved the day. It saved me from going to the Brompton shop (quite far away) and spending money for something I could do myself--thanks to your mentoring. Thanks again!

When I had bougth my new Brompton (H6LX) in 2019 I took it in my cellar and gave it an autopolish all over, to protect its paint. By that I saw that - even after only two folds, the "small clear tape" from the Factory had been worn through to the paint, So I immediately ordered a set of carbon plates for all the known week spots on a Brompton. So today I haven't got any "Brompton Scratches" on my frame, as to clearly be seen here! 😄

Great video. Very helpful. I've only done the first one and a half steps so far (which is normally weekly regime anyway) as was going to be too late for work, but reckon cleaning more winter crap out is going to get it going for me. I've been a bit negligent the last couple weeks. But really well reasoned steps to sorting, before starting to try and adjust, but thanks for explaining that too. Reckon I wont need after doing the next half step! ;-)

Great video ! Learned quite a bit. Bonus she is sooooooooooo adorable

Very helpfull!

Thank you so much! I’ve just had troubles with selecting the low gear and by no means could figure out how to adjust it.

Very helpful thank you

Thanks for this, I am buying a used Brompton and want to do a whole clean up before using it. No need to pay anyone anymore.

Acabo de encontrar tu canal, es muy interesante y muy útil para mi porque tengo una Brompton de 6 velocidades, estoy emocionado de tener una bici de este tipo. Eres una linda mujer. Saludos desde Puebla, México.

Don't own a Brommie, but I didn't realize that the 2spd versions had actual derailleurs instead of internal hubs! Pretty neat miniaturization of the bigger derailleur systems

Really useful, I have had brompton’s for 10 years and as far as the derailleur is concerned cleanliness is all important. My daily route includes 3 miles of old railway track each way and in winter weather I have to clean this regularly, the brompton videos can be useful to. Today replaced my chain and sprockets after 6 months all supplied by Brilliant ~Bikes who I have shopped with for 10 years.

Good instructions..subbed

Brilliant! Thank you.

Thank you ❤

I just put a new chain on the Brompton ... the bike has done about 3,500 miles. Did not change the rear sprockets. BIG MISTAKE. The new chain kept pinging off the smaller of the rear sprockets; I couldn't do anything about it. Had to refit the old chain, in the end. Have now ordered new sprockets from you. Live and learn.

This video is gold! You saved me from having to be the doofus that has to go to the bike shop, where they'll charge me $50 just to adjust a couple screws. 😊

Thanks you, very helpful. I am particularly impressed you don't wear gloves.

Good video

“Please ask permission from your significant other when cleaning bike parts in the sink” Wonderful. Not an issue for me though, since I live alone and make sure I don’t do this type of thing when the kids are visiting.

Please make a video about replacement of gear and brake cables! How does the new gear shifters differ from the pre 2017 shifters wrt cables replacement?

Thanks you so much!

Can you do a dedicated video on replacing the shifter cable and tuning the rear derailleur for the external 2-speed? How to tune the length of the cable with the barrel nut to match the shift points.Thanks

Thank you so much for this - whenever I have problems with the derailleur I can never remember/figure out which way to adjust the screws to get the desired effect. I’ll be referring back to this next time!

Brompton should pay you for these videos❤

Spent a good 20 mins trying to adjust mine with no luck. Then noticed the housing for the bar/spring was moving about, maybe weakend or something. Anyway, cable tied it to the chainstay and it works fine now. British engineering at its best, no wonder we don't have a car industry now.

Brilliant, as your Channel name👍🏼

Thank you!!

One tip: if you could zoom in on the parts as you adjust - I couldn’t see the daylight you referred to…. Great video, 👍I’m familiar with other types of gears but Bromptons is different.

Thankyou

Got me out of jam today thanks

Her presentation style reminds of Watch with Mother when I was a kid in the 60s. I'm expecting Bill and Ben to turn up any minute.

Hope that I can buy that bike someday !!! That's my dream bike! If I have that just like I have a mini copper in the house

very comprehensive video! Do you have any video on the types of crank n BB that fits Bmt?

Thank you. This is really helpful and so well explained and presented. My wife has a new sparkly Purple Brommie which she has named " Jennifer ". There were intermittent problems with the derailleur. When we took it in to the LBS for its post sale 3 Month check up the technician found out that the gear shifter mechanism on the handlebars was binding internally from time to time. Apparently it is not uncommon with the new style shifters. A bit of wet and dry and some lubrication and it is working as it should. As an aside, I'm finding this series of Video's extremely helpful and informative. From the feedback I can see that I'm one of many so I wondered if you have considered running a Brompton specific maintenance workshop day/ weekend? There may well be an unmet demand, especially if a Pub was involved at some stage :-)

My jockey wheels wore out so I bought a whole new chain tensioner. Very easy to install and inexpensive.

Great video as always :) However after following the steps, my issue actually turned out to be cable tension.

Hi…. Absolutely great video and it really encouraged me to try and do a proper job sorting my gears out the first time round rather than trying to do a quick bodge! HOWEVER! Amy gears still don't work properly….. I can change from high to low gear but I get no click that holds my gear shift in place….it just pushes right the way back to high gear again… any idea what could be going wrong!

Could you explain how attach the spring and cable area together? I know a person who’s gears aren’t changing. Thanks for the useful videos!

Hi. Always awesome. Q: My brompton chain makes a little clicker clack as the earlier part of your video your chain made. I notice in the post posher adjustment your chain no longer makes that sound. I’d like to seat my chain on the sprockets so that it doesn’t make the sound. It used to not. Started after I swapped tires and tubes with shealbe marathon plus. I was thinking many it’s my gear change chain in the 3 speed hub. TIA 🙏🏻

one other issue i have found is that the housing for the shifter (new style) on the handlebar can create issues if its casing screws are done up too tight. It seems to limit the free movement of the shift lever, so if still stuck, i recommend trying just ever so slightly loosening those to see if it helps?

I tend to find chain pusher issues are normally cable tension and that is adjusted at handlebar. If it isn't that then this is very useful. Still prefer my 1964 Moulton F Frame though 😜

Could you make a tutorial video how to setup and replace the achorage, please 🙏🏼

Cleaning bike parts in a nice kitchen sink with a natural degreaser actually cleans the sink very well.

Do you have a video showing how to remove/replace the gear cable to the Derailleur?

Hi ! Thanks for you explanations. Didnt you inverted low gear and high gear in your explanations ? When you "Switch to low Gear" according to you AT 5:51 we see the chain tensioner goes down, wich mean more tension, therefore bigger gear and then HIGH gear right ?

Excellent film. Thanks. Are you planning on doing a film on various pedals?

Hi, i replaced my 50T chainring with 54T on my S2L. Without changing my 12T and 16T sprocket and my chain (i added 2 links due to bigger chainring), I'm now experiencing chain slipping/jumping on fast gear (12T). I dont have problem though on shifting low to high gear and vice versa. Any thoughts on how to fix the chain slip? Thanks.

plis give a clear picture or video about connection and instalation of Cable Anchorage and Chain Pusher, i wanna assembly but i dont know how the wiring and connection. because this part is fully disassembly from the market. tks a lot!!

What if was the wire that connects the dogleg to the hi/low gear shiftier, that snapped off. Could you show how to attach a new wire from hi/low gear shifter to the dogleg?

Thanks. Need to try those, bur was wondering if prob could be spring losing tension over time? My Brompt is 15+ yrs old and its still the original springs assembly. Worth a try?

Hello, please could you tell me how do I adjust the actual derailleur cable, my cable is loose and I cannot figure out how to tighten it to take up the slack cabling. Thank you.

Now I want the 3 speed hub gear Brompton only