Another reinvention of the wheel - D-fix

[cisamcgu]

What is the point of this post?

"If freewheel / cassette had never been invented then......" well if you noticed this approach does indeed use a cassette.

" it really is no different, other than slightly less greasy to remove the wheel, then the current way of doing things"
It's different and does have advantages. Like many things in cycling..... there's always something a little different that makes things a little better. Maybe it's difficult to appreciate it now but I guess it's one of those things that if became the normal thing to do then looking back at the old way, you would think.... mmmm, I like it this way.

People that have white bar tape would love the idea... I use black bar tape and I like it I really dont like greassy hands when I ride hence I carry gloves to work on breakdowns.
Yes, durability is the concerned for me.

Perhaps I didn't express it well .. but no matter ...

 

[Dogtrousers]

If we all had that attitude, we would still be living in caves.

Well, quite. I can imagine what the response would have been on here when someone came up with the daft idea of putting the freewheel mechanism inside the hub itself, and sliding on a cassette rather than screwing on a freewheel block, which works perfectly well.

 

[User33236]

And the fixed connection is made by a toothed cog being pushed into toothed recesse in the back if the cassette. This is shown at 2.05 on the video.

I guess it was me being thick lol. Just watched that section again on a bigger screen (I.e not my phone) and can now see that the not drive side QR section appears to screw into the drive side section that stats in the frame.

It's a solution that would help out Mrs SG as she is useless at removing and refitting her rear wheels . Would like to see it tested for a few thousand more km though.

 

[deptfordmarmoset]

There's some discussion of this on Bike Rumor, including a comment about axle strength and reducing the number of turns to disengage the axle from the designer:

Jan - 11/26/14 - 12:03pm
In the meantime the coupling with the QR-axle is reduced to 3,5 rounds, in the video was this 7.
3,5 is the lenght of a bolt, all the rest is overkill.
Tests are running with a bayonet coupling wich reduces it all to 1/4.
A second spring is also added on the QR so the axle jumps out from the moment the coupling is unscrewed.
Under ALL human power conditions the bending of the axle is less than 0,1 mm. so this is as good as the best traditional system.
Of course the idea was not new, Shimano has got his patent for almost 15 years.
The way this D-Fix is constructed is new according the novelty searches that are been done.
For the moment I’m looking for investors so this will be on the market by summer 2015.​

 

[Venod]

After reading all the comments on Bike rumor, I can see the week (IMO) 2 part axle would be better served with a complete through axle, with the cassette on its own hub.

 

[bpsmith]

After reading all the comments on Bike rumor, I can see the week (IMO) 2 part axle would be better served with a complete through axle, with the cassette on its own hub.

How would a straight through axle work with a QR though?

 

[Venod]

This is a through axle it also acts like a quick release but you have to fully withdraw it to remove the wheel.