New Roaduno Dropouts

[velomann]

Just dropping a little bomb here to see where the comments lead, for S**ts and giggles, mostly.

The latest blagh shows the 3D printed track dropouts for the new Roaduno. It has a derailleur hanger. For a 120-spaced single speed. 

Comments?

(And to tag onto another posting ("choose two Rivendells") I own several bikes but only one Riv (last release of the Sam Hillborne.) I plan to do everything in my power to snag a purple Roaduno, regardless of dropout style. And at this point in my life that's the last new bike I plan to buy*

Mike M

* But who am I fooling?

[Garth]

The print does say for a chain tensioner or derailleur. That's quite straight forward to me. Sun XCD does make a 120mm cassette hub. Customize your own cog set and there 'ya go. 

So why call it a Road-UNO ?  Because it can be a seamless single speed.... and just because it can be used as such doesn't mean it can't/shouldn't have a hanger for a tensioner or derailleur. It adds to the versatility of the frame, very good idea ! Don't let the words/definitions/descriptions yank you're chain, so to speak. 

[Shoji Takahashi]

I'm also v interested in RoadUno as "my last Riv"... 

Spec'ing a hanger on these trackends means that Riv can use it for other frames-- maybe they'll make a 135-spaced frame using these? Or someone will request a custom? 

That said, these are prototypes, so who knows what will show up in the final form. 

Looking forward to it!

Anyone ride the prototypes RoadUno frames at RivHQ? How does it compare to the Quickbeam? or present offerings? 

shoji

arlington ma

[iamkeith]

Makes sense, but it's still curious to me that they only used the Frank Jones Sr. dropout on that one model.  (Or, maybe a Rosco model, too?).  Im kind of suspecting that, with 3D design printing capabilities, it might be just as easy to come up with a new part if and when it is needed.

I'm curious to see if this means there'll be some extra cable routing options on the Roaduno, or if that'll be left to clamp-on devices or zip ties, for someone who wished to use a derailleur.   Part of the beauty of a single-speed is the cleanness of not having unused stops.   On the other hand, I'm brazing on some extra housing stops to my Quickbeam - but for a Sturmey Archer 3-speed, not a derailleur.

The "chain tensioner" feature doesn't make sense to me.

[iamkeith]

Another thought:  Does the presence of a hanger mean that the dropout will be oriented more horizontally than the QB/SO dropouts?

[Joe Bernard]

It's an outlier as far as what most people are looking for in a frame like this, but a member here many years ago put an old rear derailer (Shimano 200GS I think) with a bolt on hanger on a Quickbeam so he could use a wide-range double crank with fd derailer to give it a big top gear plus hill climber granny (it was in a Rivendell Reader). 

I'm guessing after all the 2-speed experiments Grant and Will have done with chain tensioners they figured it couldn't hurt to have the option on RoadUNO. 

[iamkeith]

Doh.  You're right - i forgot about that possibility.  I'm so obsessed with IGHs, i completely overlooked front-shifting possibilities.

[Brian Forsee]

I'll be bummed if the roaduno ends up with a der hanger and/or cable routing for a derailleur. I like my single speeds nice and clean. If they DO put options for a geared setup on there I hope they at least go to a 135mm spacing.

[Joe Mullins]

When I last spoke to Will about it a few weeks ago he confirmed the spacing was 120.

On Dec 9, 2022, at 7:20 AM, Brian Forsee <bmfo...@gmail.com> wrote:

I'll be bummed if the roaduno ends up with a der hanger and/or cable routing for a derailleur. I like my single speeds nice and clean. If they DO put options for a geared setup on there I hope they at least go to a 135mm spacing.

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[J L]

Can someone tell me the purpose of the hoods on dropouts like these? They are referred to as Breezer style, right?

[Shoji Takahashi]

Hi JL:

Hooded dropouts like these are sometimes referred to as Breezer-style, as Joe Breeze used them in his MTB. (IIRC, they predate Breeze, though.)

Hooded style has advantages for builders and Riv: this one can be used at many different angles. Vertical dropouts, like on my Toyo AHH, have a fixed angle. As the frame size changes, the chain-stay to seat-stay angle needs to change (or the frame designer will have to compromise by changing stay lengths).

Hooded style also can be welded (and brazed, I assume), which might offer flexibility in manufacture. Might permit a cheaper frame-construction option? The width probably offers a stiffness advantage, but I don't know how significant or important that might be.

shoji

arlington ma

[William Lindsay]

I (for one) will expect 120mm O.L.D. The one and only reason to move to 135mm is so folks can use the wheels they have laying around for free. 

120mm is the right O.L.D. for an actual single speed-OR-a modest multispeed. 

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[Doug H.]

I agree Bill. Grant is designing a single speed frame with some added features for adaptation by the owner. You could readily convert your current Rivendell with 135mm spacing to single speed and that has been done and shared here. I am eagerly anticipating the release of the Roaduno and have been slowly acquiring parts.

Doug