Frequently Asked Questions
Helix will be compatible with many off the shelf bicycle components. There are however some limitations due to the fact that Helix folds so small and has significantly tighter clearances than regular bicycles.
The area of most limitation is the crankset. Only specific cranksets will work and there will be a limit as to how large of a front chainring you can use due to the clearance between the chainline and chainstay. Also, it is not possible to use a front derailleur. With that said, some very high quality cranksets are compatible.
The other limitation is brakes, Helix has limited clearance between the front and rear wheels when folded. We have only tested TRP Spyre and Spyke brake calipers, but we believe that Rever will work as well. These are all dual piston mechanical disc brakes and are highly regarded. Hydraulic brakes have not been tested, but some models may work. Brake rotor max size is 160mm.
The maximum tire width is 1.5". Cockpit is for the most part unlimited. Helix will us a standard seatpost diameter. Rims, hubs, spokes, chains, cassettes, derailleur's including electronic shifting are all for the most part compatible.
Keep in mind any changes may affect the overall folded size, for example, adding drop bars will increase the folded width.
We will post all relevant dimensions to help with customization such as bb shell, steerer and seatpost diameters etc.
We will begin a section on our website to document compatible components. For this reason we advise all backers to wait for delivery and refer to our website before beginning the fun process of customization!Last updated:
Helix has been designed to accommodate riders between 5' to 6'4" and carry up to 250 lbs (113 kg). There is a large range of adjustability possible to achieve the desired fit.
The saddle height can be raised or lowered to the appropriate height to accommodate a 5' - 6'4" rider based on industry fitting guidelines. The saddle can also move forwards and backwards and also the seatpost has a 20mm setback that can be reversed to further adjust the saddle position forwards or backwards.
The stem has a 20mm rise that can be flipped to achieve a 20mm drop. If any of these adjustments is not enough, it is always possible to replace the stem, seatpost, handlebar and crankarms to achieve a better fit.
The seat post dimensions are 27.2mm x 350mm and the steerer tube diameter is 28.6mm.Last updated:
An electric conversion can be installed by the end user. Helix has a standard 135mm dropout spacing. We will be testing a few of the more popular electric conversions with Helix and posting the results as we get closer to delivery in 2016. Helix should only be used with pedal assist type electric conversion not exceeding 250w. Any other type of electric conversion will void the warranty.Last updated:
Yes. Helix will come with mounts for: mudguards, a front and rear rack, bags, trailer and a water bottle. We are working on a complete line of accessories that will complement our design and not interfere with folding or rolling when folded. Availability is mid 2016.
As for other types of accessories such as handlebar mount cycling computers, lights, bells, smartphones, GoPros, even bags and bottles etc, these should all for the most part be compatible with Helix as the handlebar is facing outwards when folded.
Most seatpost mount accessories should also be compatible such as lights, mudguards, bags, racks.
Keep in mind any changes may affect the overall folded size, for example, adding a seatpost rack will increase the folded size. Also, the maximum weight capacity for Helix including rider and all cargo is 250 lbs (113 kg).
We will post all relevant dimensions to help with adding accessories such as handlebar and seatpost diameters.Last updated:
Due to the fact that the chain length expands and contracts when folding, it is not currently an option. Helix uses a modern chain drive with hollow links that is lightweight, durable and highly efficient.Last updated:
Yes. A single sided fork can be just as safe or safer than a double, the use of larger diameter tubing and a large tapered axle (25mm to 15mm) makes it very strong and also rigid. They have been used in the bicycle and motorcycle industry for years. Your bicycle pedal and crankarm is a type of "single sided fork", the pedals 9/16" axle and can hold your entire weight.Last updated:
We plan on offering a cover/bag, a padded softcase and a hardshell travel case that can be used as a trailer as well. These items will be available mid to late 2016.Last updated:
A frame only option is something that we will consider offering after our Kickstarter campaign ends and we go to production. Helix will be compatible with many off the shelf bicycle components, but there are some limitations due to the fact that Helix folds so small and has significantly tighter clearances than regular bicycles. For this reason we are currently offering Helix as a complete bike only as quite a bit of guidance and testing will be needed to ensure that the desired component will be compatible with Helix. We will begin a section on our website to document compatible components. For more details, please read the above FAQ on customization.Last updated:
Helix is available in 3 different drivetrain options: a single speed, a 10 speed derailleur, and an 11 speed internal gear hub.
The single speed is best suited for flat, mostly level terrain. It requires little maintenance and has a simple, clean look. It is the lightest of all three models.
The 10 speed derailleur is the highest performance model. It offers a wide range of gears that allow you to climb steep hills and also ride fast. It requires the most maintenance of all three models.
The 11 speed Alfine offers the simplicity, clean look and low maintenance of the single speed with slightly less performance than the 10 speed. The gears are fully enclosed and away from the elements making it a good choice for wet conditions. It is however the heaviest of all three models.Last updated:
The gear ranges are as follows:
10 speed derailleur: 27.6" to 90.5"
11 speed Alfine: 22" to 89.9"
single speed: 55.3"
More detailed gearing information can be found at http://www.ridehelix.ca/specificationsLast updated:
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