650b Atlantis Pic on the BLUG

[sameness]

BLUG Link

Diggin' that silver Roadeo as well.

Jeff Hagedorn
Los Angeles, CA USA

[Bill Lindsay]

Yes I saw that bike in person earlier this week.  It's pretty darn nice.  I rode it briefly, and I just might get one.  

Bill Lindsay

El Cerrito, CA

[Bob K.]

I'm holding out hope that this means the market will soon be saturated with "old," "outdated" non-650b Atlanti in my size (ahem, 56, ahem) for reasonable prices!

[dstein]

Man that silver on the Roadeo is great. Does it have a green tint to it (I'm sorta color blind)?

[Joe Bernard]

I'm curious about the dark-colored Roadeo, too. Is it grey or green?

[Bill Lindsay]

I'm 95% sure the dark colored Roadeo is the original Hunqapillar grey.  I did not see it in person.  

[Chris Lampe 2]

Hopefully I'm not changing the subject too much but it's closely related because I want to compare this new Atlantis the new Hunqapillars.  Have you had a chance to see and ride one of the 650B Hunq's?  Do they even have a 56cm 650B Hunq in the shop?  If so, how does the standover compare to the 650B Atlantis?  

I really wish RBW would list the geometry charts or at least the sizing guidelines since they seem to be selling the 53 cm Hunq's already and now I'm going to be curious about the new Atlantis!

[David Stein]

I feel like they take a while to getting new geometries posted but they always do get around to it. Honestly I'd just call them at that point, I'm sure they can help with geos and comparisons, Brian was super helpful w/ my Hunq build and I think he covers Atlantis too.

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[René Sterental]

A 650b Atlantis on larger sizes would certainly be attractive... I wonder if they'll make them in 61 cm or so...

On Friday, November 4, 2016, David Stein <davec...@gmail.com> wrote:

I feel like they take a while to getting new geometries posted but they always do get around to it. Honestly I'd just call them at that point, I'm sure they can help with geos and comparisons, Brian was super helpful w/ my Hunq build and I think he covers Atlantis too.

On Fri, Nov 4, 2016 at 5:12 PM, 'Chris Lampe 2' via RBW Owners Bunch <rbw-owners-bunch@googlegroups.com> wrote:

Hopefully I'm not changing the subject too much but it's closely related because I want to compare this new Atlantis the new Hunqapillars.  Have you had a chance to see and ride one of the 650B Hunq's?  Do they even have a 56cm 650B Hunq in the shop?  If so, how does the standover compare to the 650B Atlantis?  

I really wish RBW would list the geometry charts or at least the sizing guidelines since they seem to be selling the 53 cm Hunq's already and now I'm going to be curious about the new Atlantis!

On Friday, November 4, 2016 at 3:35:54 PM UTC-5, Bill Lindsay wrote:

Yes I saw that bike in person earlier this week.  It's pretty darn nice.  I rode it briefly, and I just might get one.  

Bill Lindsay

El Cerrito, CA

On Friday, November 4, 2016 at 12:47:33 PM UTC-7, sameness wrote:

BLUG Link

Diggin' that silver Roadeo as well.

Jeff Hagedorn
Los Angeles, CA USA

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[drew]

Aren't they going proportional? Big-700c, medium-650b, small-26". That was my take. I have a beloved 700c hunq, but a 56cm with 650b is soooooooo damn tempting.

[iamkeith]

How big is your current Hunq, Drew? I've been waiting for a 56 size since day 1, but am having a hard time seeing the benefit of 650b over 29er wheels for the type of riding I'd expect that bike to encounter. I totally get it with the Atlantis, being more road-oriented. Does the 700c hunq have toe overlap problems with the front wheel or something?

[drew]

It's a 54, and it's essentially perfect. I'll keep it and be happy. Id, I think, fit a 56 a little better and I'm a fan of smaller wheels, aesthetically. That's all. Zero complaints about my hunq though.

[twowheeledtexan]

I've had a 56cm 650b Hunq on order since August. Don't know when it'll get here, but can't wait!

[Ray Varella]

Does anyone know which sizes will sport the 650b wheel size?

Ray
Vallejo CA

[Max S]

ooh!... I'd been trying to save up for a 56cm / 650b Hunqapillar, but now that there's a 650b Atlantis... 

- Max

[adam leibow]

i'm gonna get this. I THINK

On Friday, November 4, 2016 at 12:47:33 PM UTC-7, sameness wrote:

[Frank Brose]

Do it Max. You won't look back or be sorry. I have a 56 26" and love it but I also love 650b wheels as I have a couple of bikes with those as well. I'll be hard pressed to not sell mine and pony up the extra cash for a 650b model. I'll wait for the geometry charts.

Frank

[Max S]

So, anyone ride a 650b Atlantis yet?.. ride reports?

I was tempted by the 58 cm b-nut Appaloosa for sale, but not digging the double top tube aesthetic, and not completely sold on the super-long chain stays. Now that I’m laid up with a freshly broken collarbone now and the perennial “simplification” urge struck - sell a couple of bikes to replace with a single 59 cm 650b Atlantis, run 2 wheelsets (42, 48/52/60mm if it fits)?..

- Max

[William!]

Somewhat off topic, but has anyone here converted an Atlantis to 650b? I've got a larger (61cm) Atlantis and I've been thinking of building a second set of wheels – mainly so that I can run knobby tires without hitting fender clearance issues. Can anyone comment on what geometry changes Rivendell made to accommodate the smaller wheel size?

William

[Tim Gavin]

Atlantii are not easily convert-able, because of cantilever brakes. 

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[Max S]

There’s a widget for doing that.... honest. Just don’t recall the name...

[Ian A]

The canti posts are the issue. It would certainly be possible to move the posts to the 650b position and use brakes with enough adjustment to accommodate either 650b wheels or 700c.

But, the costs of moving the posts and dealing with painting the frame and fork afterwards would be significant. As to whether it would significantly change the ride of the bike, hard to say. The bottom bracket would sit a fraction lower.

650b rims are predominantly disc only nowadays. There are still rim brake options available, but personally I think a new bike would be a better investment. Something like the Black Mountain Cycles Monster Cross Disc (which I believe is still in prototype phase).

Keep the Atlantis the way G intended. It's good that way.

IanA

[William Henderson]

Right, I forgot to mention that it is already running disc brakes so moving the studs won’t be an issue. If I had a set of 650b wheels sitting around I’d throw them on but in lieu of that I was hoping someone else might already have tried (whether by moving the studs or some other method).

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[dougP]

"I forgot to mention that it is already running disc brakes"

You converted an Atlantis to disc brakes???  Did you have a new fork made? 

dougP

[Bill Lindsay]

William! asked "Can anyone comment on what geometry changes Rivendell made to accommodate the smaller wheel size?"

Obviously you are already looking at the Geometry Chart, right?  https://www.rivbike.com/pages/geometry

The biggest difference to accommodate smaller diameter TIRES is BB drop.  The 650B Atlantis has 67mm of BB drop.  The 700C Atlantis has 80mm of drop.  The 26" Atlantis has 48mm of drop.  A 700C Atlantis has more BB drop than any frameset I know of.  Running smaller wheels on a bike with more drop than 99.5% of bikes out there is a great recipe for pedal strikes.  If you don't worry about pedal strikes, go for it.  

Bill Lindsay

El Cerrito, CA

[dougP]

I did a short ride on a 56 cm 650b Atlantis at RBWHQ, and really liked it.  I have a 58 cm 700c Atlantis, and the 650b was different somehow, in a good way.  I can't put my finger on it but the ride was just nicer.  I believe the new designs have slightly longer chainstays, so that may be part of it.  They have the geo charts for all of them on the website, including max tire sizes.  Not sure the new ones take significantly wider rubber than the old. 

Someone here bought that demo bike & was to have posted his findings.  Maybe I missed it but I never skip anything with "Atlantis" in the subject line.

dougP

On Monday, November 27, 2017 at 9:01:58 AM UTC-8, Max S wrote:

[lconley]

If you have a 650b bike with cantilever studs, all you need to do is use Paul Motolite linear brakes, you can run 650b, 700c, and probably even the old 27". As the wheel diameter gets larger, the tire gets narrower due to frame and fork clearance, but the brakes can be adapted to a huge range of larger rim diameters just by sliding the shoe clamp up the brake arm..

Laing

[Max S]

Here’s the widget I was thinking of:

http://farm6.staticflickr.com/5481/12056493355_711665c0d3.jpg

And another implementation:

https://forums.thepaceline.net/showthread.php?t=166014

These can help if converting 700c to 650b. But mind the bb drop, as pointed out above.

- Max

[Leslie]

If you had an older Atlantis that was a 56 or under, ie, a 26"-wheeled bike, you could use the Paul Motolites and run it as a 650b (if I ever run across a cheap 56 Atlantis, I'd consider doing such).  I wouldn't try to run a 700c Atlantis as a 650b.

(Realize, I have to caveat things everytime I open my mouth, but this is coming from a guy who converted his 700c Ram to 650b Hetres, and then for awhile borrowed the 700c wheels for the 650b Bomba w/ Motolites, just to see how it'd be, and it was fine...) 

[Joe Bernard]

I'm trying to figure out how there's a disc Riv out there somewhere and we never heard about it!

[dougP]

Bill:

Not that I'm likely to try this notion, but it would seem as long as you used a 650b tire that yielded the same OD as the 700c it replaced, the BB would not drop.  622 - 584 = 38 mm.  Granted, that's a substantial increase in tire size, and most Atlantans are probable running something in the 35-45 mm width range already.  Assuming a 40 mm tire on a 622 mm rim, the OD will be around 700 mm.  So a comparable 650b would be around 60 mm.  All of this is theoretical & ignores that tires are often not true to size. 

Is my logic right on this?  Or did I miss something important?

dougP

[David B]

I believe that part only works on remove-able canti studs, which a Riv would not have.

[Benz, Sunnyvale, CA]

On Monday, November 27, 2017 at 1:13:30 PM UTC-8, Leslie wrote:

If you had an older Atlantis that was a 56 or under, ie, a 26"-wheeled bike, you could use the Paul Motolites and run it as a 650b (if I ever run across a cheap 56 Atlantis, I'd consider doing such).  I wouldn't try to run a 700c Atlantis as a 650b.

(Realize, I have to caveat things everytime I open my mouth, but this is coming from a guy who converted his 700c Ram to 650b Hetres, and then for awhile borrowed the 700c wheels for the 650b Bomba w/ Motolites, just to see how it'd be, and it was fine...) 

Well, I believe the original intent of converting a 700c Atlantis to 650b is to get fatter and cushier tires. Tires with more of that new-fanged free air, to paraphrase Grant. Therefore, converting a 26" Atlantis to 650b doesn't make too much sense, especially with the selection of 26" tires we have now (such as the Compass Naches Pass). Having stated that, I know that Ron Lau had converted his Joe Stark 26"-wheeled Rivendell to 650b, and reported good results. Apparently, new brake arms with longer adjustment slots were enough to execute this change.

[Paul Choi]

Joe,

I think the Crust Romanceur is the closest you can get to a Disc Atlantis. Here is their description from their site. $1275 f/f. I have been looking at this and the new VO Polyvalent 650b as a disc option. The new Polyvalent will be out in the spring at $725 f/f.  

The Romanceür frame has a standard 1″ threaded steerer, meant for quill stems.All sizes have level top tubes.Bottom bracket height, standover clearance, and trail are all calculated with a 340mm (13.4″) radius tire. The Romanceür was designed to have generous clearance for fenders around 26 x 2.3″ tires. 650b x 48 tires with fenders should fit equally well, and even larger tires will fit fine without fenders.68mm standard threaded BB27.2 seat post diameter.Disc brakes. Ornate lugs.Rear spacing 135.Front spacing 100. Reynolds 853  double butted oversized tubing. 

[William Henderson]

You’d be surprised! Most folks look right at it and never notice the difference…

On Mon, Nov 27, 2017 at 1:28 PM Joe Bernard <joer...@gmail.com> wrote:

I'm trying to figure out how there's a disc Riv out there somewhere and we never heard about it!

[drew]

This is exciting. I have a 650b Atlantis on order. My semi secret plan (I'm aware it's somewhat apocryphal) was to get a disc fork made for it down the line and keep v's or canti's in the rear. I'd Keep the og fork as is in case the change is dumb. Right now that seems about as close to dream bike as I can get.

I've been hesitant to consider frame modifications on the Atlantis that I don't even have yet, but I'd love to see pics of the disclantis. Might push me over the edge.

[Ian A]

I just can't see 650b presenting anything but good things, then!

FWIW, I used to follow the Surly Groups page and there was a fellow who had bought a 700c Disc Trucker. He had a 559 wheelset and a 622 wheelset and changed them depending on the task. 622 for commuting and 559 for carrying a camping load into the bush. The load was significant apparently as he carried gear and food for him, his wife and their child, so the wide rubber and smaller wheel worked for him.

IanA

[RichS]

Paul Moto-Lites work. I played with the conversion on my 53 Atlantis a couple of years ago. It was successful but short lived. I didn’t care for the change in height so went back to the 26”/canti configuration and that’s where it is today.

Regards,
Richard

[William!]

Ended up doing the conversion. Running 2.25 inch Thunder Burts the B.B. height is about 11 inches. That’s maybe half an inch lower than I was used to (700c x 48mm), but still plenty of clearance for the rough roads and loaded touring I use it for.