Go Back  Bike Forums > Bike Forums > Folding Bikes
Reload this Page >

20in titanium bromp clone?

Notices
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.

20in titanium bromp clone?

Old 05-18-21, 12:42 AM
  #1  
shi01
Junior Member
Thread Starter
 
Join Date: May 2021
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
20in titanium bromp clone?

This could be amazing.
Saw this in aliexpress. Cant post link, its called (Titanium TC4 Folding Bicycle Frame + Rear Triangel Fork Glossy / Matte Surface for 406mm 20" Bike Wheel
)
shi01 is offline  
Old 05-18-21, 03:05 AM
  #2  
Jipe
Senior Member
 
Join Date: Feb 2017
Posts: 1,513
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 783 Post(s)
Likes: 0
Liked 233 Times in 198 Posts
I am not sure about the benefit of a 20"/ETRTO406 Brompton vs. its original ETRTO349 wheels.

If it is to only being able to use relatively narrow tires 28mm or 32mm max) it won't improve the comfort nor the performances (I have a Birdy with 3 wheel sizes, ETRTO355, ETRTO349 and ETRTO406 and there is no real difference in performances with the same tires). What would increase the comfort and performances on bad roads is having wide balloon tires like the 50mm Big Apple or 55mm Big Ben. But using 50x406 or 55x406 wheels would increase the total wheel diameter a lot (57mm for the wheel size increase + 30 or 40mm for the tire width increase).

But increasing the wheel size of the Brompton increases significantly its folded size (which isn't the case with the Birdy because on the Brompton, the rear wheel folds under the frame while on the Birdy the rear wheel folds beside the main frame) and the major strong point of the Brompton is its small folded size which is lost when increasing the wheel size.
Jipe is offline  
Old 05-18-21, 05:20 AM
  #3  
Winfried
Senior Member
 
Winfried's Avatar
 
Join Date: Aug 2011
Location: Paris, France
Posts: 2,494
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 566 Post(s)
Liked 116 Times in 98 Posts

Titanium TC4 Folding Bicycle Frame + Rear Triangel Fork Glossy / Matte Surface for 406mm 20" Bike Wheel
Winfried is offline  
Old 05-18-21, 06:51 AM
  #4  
shi01
Junior Member
Thread Starter
 
Join Date: May 2021
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
i do find the brompton design attractive, also the possibility of getting it to 8-9kg with a great fold and good enough ride. Maybe one day when birdy makes a good looking one, I will consider it for sure.
shi01 is offline  
Old 05-18-21, 06:59 AM
  #5  
Winfried
Senior Member
 
Winfried's Avatar
 
Join Date: Aug 2011
Location: Paris, France
Posts: 2,494
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 566 Post(s)
Liked 116 Times in 98 Posts
A full titanium Brompton with the same 349 wheels at ~8-9 kg would be nice.

But it might cost 2x what it does now :-/
Winfried is offline  
Old 05-18-21, 07:40 AM
  #6  
shi01
Junior Member
Thread Starter
 
Join Date: May 2021
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
3sixty has a 9kg half ti-bromp clone for $1700usd. The demand is probably making these clones very interesting.
shi01 is offline  
Old 05-18-21, 11:28 AM
  #7  
Winfried
Senior Member
 
Winfried's Avatar
 
Join Date: Aug 2011
Location: Paris, France
Posts: 2,494
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 566 Post(s)
Liked 116 Times in 98 Posts
Snce they're just Brompton clones, 3sixty doesn't sell in the West, and won't ship.

3sixty.kr
Winfried is offline  
Old 05-18-21, 01:44 PM
  #8  
Nyah
QR-disc must die!!!
 
Join Date: Sep 2018
Location: Shenandoah Valley, Northern Virginia.
Posts: 703

Bikes: '99 Trek 520, '20 Kona Sutra (FOR SALE 48cm), '21 Simon-Bikes mini-velo and a chromoly-framed folding bicycle with drop-bars and V-brakes, that rolls even while folded.

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 397 Post(s)
Likes: 0
Liked 199 Times in 147 Posts
A 20" bromp improved clone overcomes several problems that keep me from the 16" version.

This 20" Ti bromp clone is missing a couple essential things though:
1. Front fork.
2. Paypal payment option.
How to overcome those?
Nyah is offline  
Old 05-18-21, 02:10 PM
  #9  
shi01
Junior Member
Thread Starter
 
Join Date: May 2021
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Nyah
A 20" bromp improved clone overcomes several problems that keep me from the 16" version.

This 20" Ti bromp clone is missing a couple essential things though:
1. Front fork.
2. Paypal payment option.
How to overcome those?
I think they have a front fork in the package. Aliexpress is pretty good with their security, but a virtual card that acts like a debit card can also be helpful, im not sure if paypal has a virtual card feature.
I would wait a little for the design to mature, dealers r even putting a premium on clones in asia. But with the demand comes will and the quality is surprisingly high. With software or food products, things that cannot be QA easily, china lacks way behind, but for mechanical things like bikes, its easier for these factories to excel.
shi01 is offline  
Old 05-27-21, 08:57 AM
  #10  
maxxevv
Senior Member
 
Join Date: Nov 2016
Posts: 110
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 52 Post(s)
Liked 1 Time in 1 Post
Originally Posted by Nyah
A 20" bromp improved clone overcomes several problems that keep me from the 16" version.

This 20" Ti bromp clone is missing a couple essential things though:
1. Front fork.
2. Paypal payment option.
How to overcome those?
A 20" clone in full titanium and disc brakes actually is available in China. But the asking price is a little eye watering at US$3500/- before shipping and taxes.
maxxevv is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.