Rear hub

In a few years nobody will believe we ever used hubs that did not engage immediately, sounded like angry bees, and actually braked your bike while not pedaling. In a few years everybody will use only one type of freewheel integrated into their hub – the efneo freewheel and hub. Instant engagement – less than 1 degree of “dead space”. No noise. No braking. Designed for all types of bicycles.

Gearbox

Are you like most people that really don’t like all the hassles and problems associated with a front derailleur? Now you have an alternative.

Efneo’s 3-gear front gearbox is perfect for trekking, hybrid, urban, single speed, city and folding bikes as well as for off road non-competition bikes and e-bikes.

How it works 2

The following graphic shows innovation of Efneo in the field of so-called „silent hubs”. The difference is only when the wheel turns, but the rear sprocket is motionless (the biker does not pedal). In traditional solutions the internal hub rollers where worn out by continuous friction against the external ring – this made the rollers smaller and smaller, what caused the hub to slip over.
freewheelsHub

traditional ‘silent hub’

The rollers are worn out, because they rub against the external ring. This way they get smaller and smaller and perfectly polished. And after some time they begin to slip over

efneo active hub

The rollers do not wear out, as they rotate together with the external ring

How it works?

For years the industry has been seeking a way to use another type of freewheel mechanism – the so called “silent hub” – using a concept of a roller freewheel.

This kind of hub has two major features – it engages immediately and does not make any noise – unlike all pawl and ratchet freewheels with their specific bee-like sound and inefficient rotation of the freewheel before it engages and applies power to the wheel.

All these attempts have failed for one reason – after a very short time the freewheel begins to slide and to date, the only way to prevent this was to make the freewheel extremely heavy. Until now, it is a congenital weakness of all other known roller freewheels – a much higher weight to durability factor than a pawl-and-ratchet mechanism. The weakness comes from the construc-tion in which the rollers are grinding all the time that the cyclist is not pedaling.

After a relatively short time they are worn-out and do not engage effectively when a cyclist pushes hard on his pedals. They “slide”. They all work perfectly when they are brand new from the factory but get “old” and weak very quickly.

Efneo freewheel works differently when not pedaling. The rollers are not grinding at all so the rollers do not wear out nearly as quickly as other roller freewheels did. And since the rollers are not grinding, they do not have to be made so heavy in order to continue to function properly for a very long time. Thus, efneo has invented a new freewheel that is much more efficient than the 19th century pawl-and-ratchet system and is just as durable and lightweight as the pawl-and-ratchet freewheels with the added benefit by using rollers that do not grind when not pedaling, eliminating that noisy, annoying ratcheting sound.

FAQ

Gearbox

Can I assemble Efneo Gearbox to
my bike myself?

Yes, if you have the basic tools and skills. However, we think most people would prefer going to the closest bike shop to have it done.

For what type of bikes is Efneo Gearbox dedicated?

For any type of bike that uses a tapered squared bottom bracket. You can have each type of rear transmission (derailleur, gearbox, single-speed hub) on your rear wheel. We do not recommend it to be used with fixed-sprocket rear hubs.

Does it work properly with
a rear derailleur?

Yes! And the main benefit is you can forget chain-skewing.

Does it work properly with a rear hub gearbox (e.g. Shimano Alfine)?

Yes. However, please, check the specification of your hub. Some manufacturers specify that the chainring in the front should be at least 30-34T. Efneo uses 28T.

Will it fit my derailleur shifter?

No. The gearbox is delivered with the shifter. It is also possible that you will have to change your break shifter on this side of the handle bar where you choose to fix efneo gearbox shifter.
Efneo gearbox shifter is a two-cable grip shifter.

What will be the retail price?

It will be announced soon. However, you are 100% guaranteed our pre-sales price is lower than the retail price will be.

What will be a pre-sales price?

It will be announced soon

When will you start production and pre-sold items delivery?

We assume no later than Winter 2015. However, we’re working on making it sooner!

Rear hub

What should I do to use Efneo
Active Hub?

You have to exchange your rear hub in your rear wheel. Most bicycle shops should be able to do it for you.

Is it really reliable? So many other companies tried to do a “silent clutch” and they failed

That is a very good question! Read more here (link to “how it works”) with fixed-sprocket rear hubs.

What are the product details (axle length, spoke holes etc.)?

The details will be announced soon. We will offer a range of the most popular parameters and combinations for each segment (road, hybrid, mtb, bmx, single-speed etc.).

Remember – if you pre-order a product and it turns out we are not offering the product with your preferred parameters and combinations, you have full money refund guarantee!

What will be the retail price?

It will be announced soon. However, you are 100% guaranteed our pre-sales price is lower than the retail price will be.

What will be a pre-sales price?

It will be announced soon.

When will you start production and pre-sold items delivery?

We assume no later than Autumn 2014. However, we’re working on making it sooner!