E-Hub

[Gredinus]

Worried about knee strain? Want to climb faster? e-Hub is answer.

Especially on recumbents our knees are very exposed to excessive load
as we have a solid support behind our back. I am sure everyone has at
some point experienced knee pain after more intensive cycling. Even
diamond frame cyclists experience that and their pressure on knees is
much lower. There is a very simple solution available and it is called
eHub. And no, it is not a motor and it has no electronics inside.

Quote: E-HUB is a rear-wheel E-HUB (‘E’ both for Easy and Energy). The patented invention overcomes the pedals’ dead spot at about ±15 degrees around the top and bottom of the pedal path. In effect, the E-HUB redistributes the cyclist’s force on the pedal during the circular pedal path, yielding more constant power on the rear cogs. This enables cyclists to significantly improve their performance and to save their energy.

It was developed for diamond frame bikes and it even has UCI
certificate, which means it is allowed on international races. The
main purpose of this special hub is however not related to knee
strain. It was developed for overcoming the pedals’ backlash,
consequently allowing cyclists a better output and increased overall
performance by 7-10%. It seams this really works, as more and more
famous cyclists around the world are already using eHub. Considering
the fact that it is heavier than standard rear hub, noone in the DF
world would use it without gaining something that can be realised and
of course, measured.

Link:
http://www.ehub.si/eng/

 

[John Tolhurst]

This is clever spam, right? three two one zap.

 

[Gredinus]

Nah, a friend of mine uses these on his recumbents and he says it actually works.

Altrought I did copy and paste because I'm to lazy to write it up .

The reason I posted this is that it might improve the preformance of the silvio or even the new Vendetta.

To be honest I haven't used it myself yet.

 

[John Tolhurst]

Thanks for the heads up on the E-hub.

 

[Gredinus]

Their site has lots of information about their product includeing some statistics.

Example:
(done with a MTB)

 

[currystomper]

This product was highlighted in Velovision this quarter - I was wondering if it may give a stand up in the saddle effect where you could push - wait - push - wait just like standing up on a safety bike.

The problem I can see is that the spring only works at one torque, maybe a 'rising rate' spring would be better.

Currystom'