Another reinvention of the wheel - D-fix

[deptfordmarmoset]

I haven't seen any other posts about this so I thought it might be worth sticking it up. It's a solution to a very minor problem but it's a fairly original approach to rear wheel removal - the cassette stays on the bike. Interesting thobut.

 

[cisamcgu]

I think it is very clever, and if the freewheel/cassette had never been invented this might well have been the way things ended up. However, it really is no different, other than slightly less greasy to remove the wheel, then the current way of doing things

 

[deptfordmarmoset]

[QUOTE 3397365, member: 259"]It's interesting what people see as a problem. It literally only takes a minute to swap standard rear wheels, but you can't stop people tinkering I suppose.[/QUOTE]
Aye, it solves a very minor problem but it's such a simple variation that takes a fresh approach to be able to come up with. I wonder, though, for people who need to take the rear wheel off to get it in the car, if the dérailleur would be a bit more vulnerable. The mech sort of folds up when you take the wheel off and it wouldn't with this. That could leave it sticking out a bit more.

 

[Pale Rider]

It would make running a set of winter wheels/tyres simpler and a bit cheaper.

 

[Deleted member 1258]

MZ were using a similar method on their motorbikes in the 1970's. Personally I like it, on a fixed it would cut out the faf of retentioning the chain after repairing a puncture. My only concern would be durability.

 

[Spoked Wheels]

I think it is very clever, and if the freewheel/cassette had never been invented this might well have been the way things ended up. However, it really is no different, other than slightly less greasy to remove the wheel, then the current way of doing things

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.

 

[User33236]

What stresses is it going to put on the frame? Maybe I'm being thick but I have always imagined that a standard rear wheel clamps both of the rear triangles in unison thus spreading the forces through each. I can't see how this setup achieves that therefore potential stressing them more than normal.

 

[Dogtrousers]

Interesting. Although the claim that it has been tested for "over 500km in heavy road conditions" isn't exactly impressive. 500k? That much?

@User33236 it looks like the skewer engages in the cassette and is tensioned by a normal QR

 

[Beebo]

Interesting. Although the claim that it has been tested for "over 500km in heavy road conditions" isn't exactly impressive. 500k? That much?

@User33236 it looks like the skewer engages in the cassette and is tensioned by a normal QR

yeah, I thought 500km isnt exactly great is it. It needs to be 50,000km before anyone takes it seriously.
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 like the idea of being able to adjust your gears with the wheel removed. It would also make cleaning easier.

 

[compo]

I was going to mention MZ motorbikes but @dave r beat me to it. There isn't a lot that is entirely new.

 

[Pumpkin the robot]

It looks very similar to a system they use in endurance motorcycle racing. I never knew MZ had a system like it. I like the idea, much neater and cleaner than the current system, no chain coming off and as someone else above noted, you could change wheels easily and not have to worry about changing the cassette between the wheels.

 

[Drago]

An answer to a question no one had been asking.

 

[Paulus]

I think is quite a novel approach, but by the time you unscrewed the non drive side QR, as opposed to going into a the lowest sprocket and loosening the QR the time difference is negligible. Also, you would still get dirty hands unless the wheel/tyre was immaculately clean. The forces at work at the rear cassette between the wheel hub and the cassette would also have to be fully tested over many miles and weather conditions. There seems more entry points on the back of the cassette for water/grit to get in the moving parts.

 

[Venod]

I have seen a lot of unnecessary bike inventions over the years, while you can manage perfectly well without this I think it is one of the better ideas to come along, will it be developed ? only if the big boys think its worth it, my only concern is the assembled 2 part axle strength.

 

[Pumpkin the robot]

An answer to a question no one had been asking.

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