So intresting. I have a brompton C line with 6 speeds and the only thing i envy about P line is the 4 speeds. I find it simpler, and I think it makes you focus more on the riding experience and less on changing gears. Your mod is very beautiful, if it was not for the cost or the lack of ability I have in doing such work, I would have copied it😅
Fantastic video to learn about this important topic. I look forward to your follow up in depth video evaluations about this transmission subject ….. Saved & Subscribed Gratitude. Happy trails.
Damn, as a roadie, I wish I knew about this 2 years ago before I sold my P line 6 speed due to complete garbage factory gear ratios. I can see now Brompton themselves offer a 12s factory option as well. I'll wait until they offer fatter tyres and disc brakes as well, I feel this is a transitional setup.
As an owner of a much former and much lighter than, 2019 SuperlightM6LXBrompton I could imagine to change to a 7 speed and lighter functioning system with only one changer instead of the absurd and complicated 2 times 3 gears, heavy internal/outside gear! I would prefer a 7 speed changer though, instead of a set intended for something else, and I'm sure it is sold also? From my present around 8,5 kilo (mudguards) I should think that I'm able to loose even more weight? I imagine to come close to the very problematic T-line, and still with my more gears. Finn. Denmark
Ideally modifying a shimano capreo hub to fit 112mm would let you allow for as small as a 9t setup. Then you could use a 50t chainring followed by a 9-11-13-16-19-23-28t cassette. This will more closely emulate a c-line with an extra gear and better spacing, but lighter, and less of a jump in gear ranges while outputting similar range. You should seek out Leonard Rubin's Design as he has been working on a titanium trifold using a 28? 30? speed design using a front derailleur system as well.
Excellent video and your english is very charming. Could you please share what was the largest sprocket on the rear cassette? I have 21T on my 5 speed p line but im curious to know if you managed to go higher?
Great product review! I look forward to more videos about customization of folding bikes. Are these wheels available in Aliexpress too? BTW: I'm an English teacher. Your english is great because you use a wide range of vocabulary words. Don't worry about your accent. No one will notice because the West is an international part of the world with many people of different nationalities. We are used to hearing many different accents of English. :)
Thank you so much your videos are great and so informative! You mentiones that the rear triangle and the front fork are of titanium, please wich company is good for having them? I'm planning to covert my M6H bromton to a lighter one. Thanks a lot and greetings from spain
Hey, thanks for the video. I'm located in Canada and I was hoping to get more information on this conversion kit. The idea of using carbon wheels is enticing, but I suppose it's still doable with a basic wheelset. As you know, I still have to eat. :) Is this conversion kit purchaseable outside of Asia?
I still prefer the stock internal gear and 2 external. Nothing else to change except the rear suspension and wheel extender. Carbon rims is a big no unless its a disc brake model.
hi, thanks for the vid. does converting to external gears have any problem with the folding? like do you need to be in a certain gear to fold? I think i saw that from some other external geared trifold (not brompton).
It doesn't change the way it is being folded. But like conventional bikes, gears must be in the resting position (smallest cog) to avoid stress on the derailleur.
Cliff, nice titanium folding bike. Do you know if that same build with gold brazing is still available minus the carbon wheels for purchase? Can you assist me on purchasing one? Edit: I got hold of the shop owner, he doesn’t sell the gold brazing version anymore 😢
Your suspension block is too soft you’re bouncing all over the place. That one is infamous for breaking. Use a more firmer one. You’re losing efficiency External gear brompton are slow ones. At the max of 60t front you’re max in the 30+ km/h range spinning out. And cruise around 25km/h You can see already how your legs are spinning fast and you’re barely going anywhere. This may make more sense in a hilly environment The truth is weight doesn’t mean that much in flat areas Another disadvantage is the internal hub has a wider range so not only is faster top speed, it can climb better than an external only system. So in conclusion it’s best for slow casual riding in urban cities in which you need to constantly fold and pick up the weight for public transport. And to add as well this titanium clone just to educate people reading this. 1.5mm tubing size of Chinese titanium is very flexy. In fact no one wil go for that. They will go 2.0mm. Still titanium flexes more than steel so it’s a compromise of the low corrosion and the lightness of a titanium for the flex. Also to add, not all titanium Chinese clones are built the same. One of the risk you take is cracked titanium. Yes it can crack if it’s poor quality. For example in the headset area if tighten too much. If the stem fails you’re gonna fly off the front. That’s why it’s good to stick with more expensive Chinese titanium parts like TI39. Not cheap and can get up there to the price of a real brompton but at least you can trust it better.
Dunno why my comment is not saving correctly so I’ll continue. The carbon rims are only for show They are not much or not at lower in weight than a lower profile lightweight aluminum wheel The irony is that the external gear set limits the top speed so you don’t even get into the speed in which the deep aero design can even make a difference. And that difference is only for a straight line and not in an offset breeze for example. Where a side wind can push your bike over and make it more difficult to handle. Designs are basically a compromise there’s not all winner. The braking far more inferior and quite dangerous on a carbon wheelset with c clamps. The Brompton c clamp is already a mediocre braking system then you are the carbon surface and the brake pad that has to make and it’s worse. If you ride downhill with a lot of breaking you can actually damage the wheelset. This is why you see disk brakes on carbon wheelset on road bikes. So basically for the brompton this carbon and many other like it is just for the looks and you’re compromising braking , wind stability and also the ride quality with the stiffer deeper sidewalks. lol.
![Explaining Brompton Gearing - [Including P & T Line]](http://i.ytimg.com/vi/7uVwMx9OZ94/mqdefault.jpg)
So intresting. I have a brompton C line with 6 speeds and the only thing i envy about P line is the 4 speeds. I find it simpler, and I think it makes you focus more on the riding experience and less on changing gears. Your mod is very beautiful, if it was not for the cost or the lack of ability I have in doing such work, I would have copied it😅
Folding bike "freaks" are the same all over the world, they are enthusiasts 😁
Great video. I will be changing my hub for external gear setup. I love the Brompton but hate the SA hub and its noise!
Fantastic video to learn about this important topic. I look forward to your follow up in depth video evaluations about this transmission subject ….. Saved & Subscribed Gratitude. Happy trails.
Great video! Thanks for sharing
Damn, as a roadie, I wish I knew about this 2 years ago before I sold my P line 6 speed due to complete garbage factory gear ratios. I can see now Brompton themselves offer a 12s factory option as well. I'll wait until they offer fatter tyres and disc brakes as well, I feel this is a transitional setup.
Doubt you ever gonna get that. Just buy a birdie if you need fat tires and disc. It’s a good bike.
Unless you go aftermarket and build up yourself
That’s right, but from what I heard there would be in 20 inches is gonna be bigger when folded
Your wish have come true it seems, Brompton just released the G-Line model for Gravel with fatter tyres aaaand disc brakes :)
As an owner of a much former and much lighter than, 2019 SuperlightM6LXBrompton I could imagine to change to a 7 speed and lighter functioning system with only one changer instead of the absurd and complicated 2 times 3 gears, heavy internal/outside gear! I would prefer a 7 speed changer though, instead of a set intended for something else, and I'm sure it is sold also? From my present around 8,5 kilo (mudguards) I should think that I'm able to loose even more weight? I imagine to come close to the very problematic T-line, and still with my more gears. Finn. Denmark
Ideally modifying a shimano capreo hub to fit 112mm would let you allow for as small as a 9t setup. Then you could use a 50t chainring followed by a 9-11-13-16-19-23-28t cassette. This will more closely emulate a c-line with an extra gear and better spacing, but lighter, and less of a jump in gear ranges while outputting similar range. You should seek out Leonard Rubin's Design as he has been working on a titanium trifold using a 28? 30? speed design using a front derailleur system as well.
Thank you for sharing your knowledge. Great results.!
Excellent discourse! Thank you for sharing.
哈哈 继续支持您的英文频道！
感謝你的支持：）
Excellent video and your english is very charming. Could you please share what was the largest sprocket on the rear cassette? I have 21T on my 5 speed p line but im curious to know if you managed to go higher?
Great product review! I look forward to more videos about customization of folding bikes. Are these wheels available in Aliexpress too? BTW: I'm an English teacher. Your english is great because you use a wide range of vocabulary words. Don't worry about your accent. No one will notice because the West is an international part of the world with many people of different nationalities. We are used to hearing many different accents of English. :)
Thanks. yes, I saw SuperTeam wheels on Aliexpress, too.
Thank you so much your videos are great and so informative! You mentiones that the rear triangle and the front fork are of titanium, please wich company is good for having them? I'm planning to covert my M6H bromton to a lighter one. Thanks a lot and greetings from spain
I wish you would give links to the conversion kit you used.
Could u include a link for the conversion derailleur kit please? thanks
Hey, thanks for the video. I'm located in Canada and I was hoping to get more information on this conversion kit. The idea of using carbon wheels is enticing, but I suppose it's still doable with a basic wheelset. As you know, I still have to eat. :)
Is this conversion kit purchaseable outside of Asia?
Hey, would you recommend the titanim copy of the brompton ? If yes, what are the links to this copy ?
Thx
Can you sure where you bought the 7 speed derailleur conversion kit please?
What is the biggest cog this type of set up will shift to.
great video! do you have a link to the kit?
I still prefer the stock internal gear and 2 external. Nothing else to change except the rear suspension and wheel extender. Carbon rims is a big no unless its a disc brake model.
hey whats the best gear for going the fastest? Whats your top speed? Thanks :D
My fastest setup is 54T front 11T rear, I can go a little above 20 mph.
Is this amazon japan?sir youroshiku
Shimano has 112mm width freehub???
What is the brand of titanium frame/bike that you are using? Link?
I bought it in a local bike shop in Hong Kong.
@@Clifu which shop in hk sir has these? thanks
hi, thanks for the vid. does converting to external gears have any problem with the folding? like do you need to be in a certain gear to fold? I think i saw that from some other external geared trifold (not brompton).
It doesn't change the way it is being folded. But like conventional bikes, gears must be in the resting position (smallest cog) to avoid stress on the derailleur.
Cliff, nice titanium folding bike. Do you know if that same build with gold brazing is still available minus the carbon wheels for purchase? Can you assist me on purchasing one?
Edit: I got hold of the shop owner, he doesn’t sell the gold brazing version anymore 😢
Which brand is it?
Any contacts? 😊
Your suspension block is too soft you’re bouncing all over the place. That one is infamous for breaking. Use a more firmer one. You’re losing efficiency
External gear brompton are slow ones. At the max of 60t front you’re max in the 30+ km/h range spinning out. And cruise around 25km/h
You can see already how your legs are spinning fast and you’re barely going anywhere. This may make more sense in a hilly environment
The truth is weight doesn’t mean that much in flat areas
Another disadvantage is the internal hub has a wider range so not only is faster top speed, it can climb better than an external only system.
So in conclusion it’s best for slow casual riding in urban cities in which you need to constantly fold and pick up the weight for public transport.
And to add as well this titanium clone just to educate people reading this. 1.5mm tubing size of Chinese titanium is very flexy. In fact no one wil go for that. They will go 2.0mm. Still titanium flexes more than steel so it’s a compromise of the low corrosion and the lightness of a titanium for the flex. Also to add, not all titanium Chinese clones are built the same. One of the risk you take is cracked titanium. Yes it can crack if it’s poor quality. For example in the headset area if tighten too much. If the stem fails you’re gonna fly off the front. That’s why it’s good to stick with more expensive Chinese titanium parts like TI39. Not cheap and can get up there to the price of a real brompton but at least you can trust it better.
Dunno why my comment is not saving correctly so I’ll continue. The carbon rims are only for show
They are not much or not at lower in weight than a lower profile lightweight aluminum wheel
The irony is that the external gear set limits the top speed so you don’t even get into the speed in which the deep aero design can even make a difference. And that difference is only for a straight line and not in an offset breeze for example. Where a side wind can push your bike over and make it more difficult to handle.
Designs are basically a compromise there’s not all winner.
The braking far more inferior and quite dangerous on a carbon wheelset with c clamps. The Brompton c clamp is already a mediocre braking system then you are the carbon surface and the brake pad that has to make and it’s worse. If you ride downhill with a lot of breaking you can actually damage the wheelset. This is why you see disk brakes on carbon wheelset on road bikes.
So basically for the brompton this carbon and many other like it is just for the looks and you’re compromising braking , wind stability and also the ride quality with the stiffer deeper sidewalks. lol.
0:03
Is this possible with a 12 sped p-line?