fwd-bwd

Sounds interesting: No shifter or cable. Less rotational weight. Lighter than gear hub. I wonder if Sun Race would market this to other bike manufacturers (CarryMe perhaps)? Or even make a Sturmey Archer version?

https://www.bike-eu.com/products/stri...cket-5760.html

Dahon.Steve

I'm finally happy the Strida managed to strike a deal to get gears for their folders. However, I'm not too pleased it's an auto-shifting design. Trek not long ago made the Lime 3 speed bikes that were shifted automatically controlled by the front hub. It was less than attractive and "cracked" if you did the shifting wrong which was not difficult to do! You had to be very gentle when shifting with your legs or the tranmission would sound like it's breaking under load.

I do like the three speed hub and have two bikes. However, being able to control the shift is important in not damaging the hub.

Azreal911

Actually it's not autoshifting, you have to pedal backwards 60 degrees to move it up a gear, pretty much like those sturmey archer kickback hubs. And you are right being able to control your gear feels better than autoshifting, like when you are trying to spin up a looong hill last thing you need is a higher gear suddenly!

ccmfolder

Very interesting. I was thinking about a FSA Patterson 2 speed internal gear crankset on the Dahon Jifo (possibly EEZZ/Metro if launched). The rear hub is very narrow so adding gears and internal gear hubs off shelf seems impossible. If these Sun gear boxes were available it would make the frankenhon even more attractive.

That is of course if these gear boxes are reliable and not super draggy.

*EDIT -reading up on Strida the bb shell is quite large for the eccentric adjustment. This gear box seems to consume that large shell which splashes a little water on my pervious thought.

fwd-bwd

More pictures of the gear box here:
https://www.stridaforum.com/forum/vie...=3093&start=45

invisiblehand

That is cool. I noticed the three-speed STRIDA on the main website the other day.

Thanks for sharing.

fwd-bwd

Blackstridaaustria has filed a test ride report from Eurobike:
https://www.stridaforum.com/forum/vie...3&p=7467#p7462

And yes, they put the Sturmey Archer logo on the gear box.

jur

Sturmey Archer hubs have not received glowing reports lately, specifically the 2-speed kickback hub has been the subject of severe criticism. This bottom bracket will receive much bigger torque than a rear hub gets, so I hope they designed it strong enough for the job.

tcs

While I certainly am in concurrence with the hope this new gearbox is robust and durable, I note Sturmey-Archer gears are presently fitted by Brompton, Dahon, Tern and many other OEMs.

jur

The three speed, yes - that is old reliable hat from SA UK originally. (And which Tern has SA? I looked through most of them and only saw SRAM and Shimano hubs.) But unfortunately the new SA stuff is not earning any reliability points. I also had an 8sp hub break on me. Sure they have now superseded the 8-sp hub but in the mean time people are getting rid of the 2-sp kickback in favour of the more refined SRAM version.
So when I read that this new Strida hub is newly developed, and lighter than the old venerable 3-speed to boot, I can't help but wonder... more torque, but less material...?

Carlos71

Here's the User Manual:

https://www.strida.com/upload/Image/c...-for%20EVO.pdf

jur

That is the best manual I have ever seen.

Carlos71

Sorry, wrong link.

https://www.strida.com/upload/Image/c...-for%20EVO.pdf