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

Helix Update?

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.

Helix Update?

Old 02-23-21, 10:09 AM
  #2526  
Jipe
Senior Member
 
Join Date: Feb 2017
Posts: 496
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 236 Post(s)
Likes: 0
Liked 57 Times in 50 Posts
Originally Posted by tcs View Post
'Major' problem? Meh. If you want to go on a world tour on your Moulton AM, rebuild the wheels with 18" rims and use Schwalbe Marathons in ISO40-355. Or perhaps you could rebuild with ISO349 rims; some Alex Moulton owners have.

I haven't looked into this: possibilities of using other perhaps more common/more available rim/tire sizes on the Helix?
ETRTO355 is 14mm smaller in diameter, the brake pad must be lowered by 7mm, not always possible.

I am not sure that 40mm wide tires will be compatible with the brake calipers used on Moulton AM. There are few narrow tires in ETRTO355, there is a Panaracer almost impossible to find outside Asia or the... 32x355 Kojak !

There are more tire options in ETRTO349, since the Brompton tire size is 35x349, assuming that the brake calipers accept 35mm wide tires and that the brake pads can be lowered by 10mm.

I changed the wheel size of my Birdy, I have two sets, one in ETRTO349 and another in ETRTO406 but its a Birdy disc, so no brake problems.

The same apply for Helix which also uses disc brakes, it is surely possible to use wheels in ETRTO406 or ETRTO451 or even ETRTO520 with the easiest available Schwalbe One 23x520 (that replaces he Durano 23x520 and is the only tire in ETRTO520 of Schwalbe).
Jipe is offline  
Old 02-23-21, 12:04 PM
  #2527  
mkatz
Senior Member
 
Join Date: Apr 2011
Posts: 88
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by Jonesandrew View Post
@ Mkatz: The signs are that Helix will continue in production and that all backers and preorderers will receive their bikes. Even with the resolution of the current safety issue still outstanding, I'm firmly convinced that production will continue and that the bike has a future. Helix can't sell bikes without tyres, so they have to ensure a supply is available. The worst case is that you have to always buy tyres direct from Helix if no one else is making them available. As long as you don't mind mail ordering (Internationally?) and are not too pernickety about having the perfect tyre for your needs then you should get a Helix. Another backer has compiled the list below of tyres which are apparently available at the moment: Note that even at the current low level of production Helix have apparently enough purchasing power to obtain batches from Kenda and Donnelly.
some ETRTO-507 tyres for Helix
Kenda Small Block Eight
https://bicycle.kendatire.com/en-us/...-eight-pro-cx/
Part No: 212550 24x1.50 38-507 85psi
seems it can be only ordered through Peter

Kenda Happy Medium Pro
https://bicycle.kendatire.com/en-us/...medium-pro-cx/
Part No: 212504 24x1.125 32-507 85psi
https://www.biketiresdirect.com/prod...yclocross-tire

RITEWAY (these are what I am using)
https://www.riteway-jp.com/pa/013407.html
24 X 1.35", 75psi, Japanese brand, Taiwan made
https://www.amazon.co.jp/gp/product/B07Q1S7BNX/

Donnelly MXP 24 x 32 (1.25)
https://www.donnellycycling.com/coll...31327135826033
https://www.cantitoeroad.com/Donnell...ize_p_970.html
https://www.amazon.com/DONNELLY-Donn.../dp/B075QML4ZH
https://www.store.pronetcycling.com/...tire-p858.aspx (back order)

??Islabikes 24"
https://www.islabikes.co.uk/collecti...24x1-02-26-507
26-507
from https://helix.ca/admin/user/forum/sh...dID=1000013597


and some BMX tyres

Kenda Konversion Pro
https://bicycle.kendatire.com/en-us/...onversion-pro/
Part no: 212258 24x1.5 40-507 100psi
https://shop.kendatire.com/Konversion-p/212484.htm

??VEE BMX MK3
https://veetireco.com/product/bmx-mk3/
Part no: B28912 241.50 40-507 100psi
Part no: B28909 241.00 25-507 80psi

??VEE BMX Speedster
https://veetireco.com/product/bmx-speedster/
Part no: B31645 241.50 40-507 100psi
Part no: B316339 241.50 40-507 100psi
some different colors
https://www.eciimports.com/product_i...oducts_id/7904
https://www.eciimports.com/product_i...oducts_id/7901
https://www.eciimports.com/product_i...oducts_id/7900

Though some of the listed tires are marked on sites as being "out of stock", this post, for me, has been very helpful. Thank you!

Also, fortuitously, as a result of my delayed decision making a new Helix purchase option has become available with an 11-speed (9-42) cassette and derailleur, providing in a wider gear ratio than the 10 speed. In somewhat hilly Portland, Oregon, this will be helpful.

I've placed my order.
mkatz is offline  
Old 02-24-21, 02:49 PM
  #2528  
mkatz
Senior Member
 
Join Date: Apr 2011
Posts: 88
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Air Travel: Has anyone tried traveling by commercial airliner with their Helix? Experience packing the bike into a hard suitcase?

Now that I've placed my order I've moved onto contemplating usage while waiting for delivery. (and adding options... gives me something else to do during the pandemic)

The order I've placed is for the standard model (rather than the lightweight one). I chose the 11 speed Derailleur, thinking of how much I struggled riding uphill when last I rode.
mkatz is offline  
Old 02-24-21, 04:32 PM
  #2529  
mingo
Member
 
mingo's Avatar
 
Join Date: Oct 2015
Posts: 37
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Liked 0 Times in 0 Posts
Originally Posted by mkatz View Post
Air Travel: Has anyone tried traveling by commercial airliner with their Helix? Experience packing the bike into a hard suitcase?

Now that I've placed my order I've moved onto contemplating usage while waiting for delivery. (and adding options... gives me something else to do during the pandemic)

The order I've placed is for the standard model (rather than the lightweight one). I chose the 11 speed Derailleur, thinking of how much I struggled riding uphill when last I rode.
I haven't seen anyone post anything on the Helix forum about traveling by air with one. Some have tried to find something suitable but nothing seems to come in under the 62" linear inch limit for standard suitcases without additional fees. Helix in the past had posted a CAD design of a Helix suitcase which basically cut the corners around the wheels which I think is how you will get to 62".

When do you expect to receive your bike?

I'm a kickstarter backer and after 5 years of waiting, I think I will be selling my pledge and moving on as I no longer need this bike and travel with my Brompton instead.

As you can see, by angling the corners around the wheels, and that's how you get to 62" is my guess.


Last edited by mingo; 02-24-21 at 04:37 PM.
mingo is offline  
Old 02-24-21, 05:35 PM
  #2530  
mkatz
Senior Member
 
Join Date: Apr 2011
Posts: 88
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by mingo View Post
I haven't seen anyone post anything on the Helix forum about traveling by air with one. Some have tried to find something suitable but nothing seems to come in under the 62" linear inch limit for standard suitcases without additional fees. Helix in the past had posted a CAD design of a Helix suitcase which basically cut the corners around the wheels which I think is how you will get to 62".

When do you expect to receive your bike?

I'm a kickstarter backer and after 5 years of waiting, I think I will be selling my pledge and moving on as I no longer need this bike and travel with my Brompton instead.

As you can see, by angling the corners around the wheels, and that's how you get to 62" is my guess.

Bike is scheduled for June.

Nice mock-up: I'd hate to carry that thing on my back for any distance!

The main reason I eliminated consideration of the Brompton is that I found it to be too reactive during a test run a few years back (and hated the transmission system, a matter that a bit of additional investment could fix). The Helix is the only other bike that folds reasonably flat, a property I want for placement in the back of my car.
mkatz is offline  
Old 02-24-21, 06:44 PM
  #2531  
mingo
Member
 
mingo's Avatar
 
Join Date: Oct 2015
Posts: 37
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Liked 0 Times in 0 Posts
This is just a mock up and who knows what the final product will look like, but the point is I think angling the corners of this custom case is how you get to 62 linear inches, so I don't think it will fit in an off the shelf suitcase and still be within the required measurement.

I'm sure the Helix with it's bigger wheels rides better than the Brompton, but I have taken several trips to the Netherlands, France, UK and Spain with my Brompton and it has served me well. I was hoping to do the same with the Helix, but I have no idea when I will have it, so I might as well sell my pledge.
mingo is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Loyd B
General Cycling Discussion
0
05-18-17 09:22 AM
blaronn
Bicycle Mechanics
7
07-06-13 09:51 AM
TrojanHorse
Bicycle Mechanics
6
01-14-13 11:33 AM
wocketpatch
Bicycle Mechanics
31
07-23-11 02:24 PM
khatfull
Classic & Vintage
7
07-18-11 07:19 PM

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 - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.