50cm Atlantis. 650b

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Joel Stern

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Jul 12, 2020, 10:03:51 AM7/12/20
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I find it hard to believe there is nobody within 2 hours of Springfield MA with a 650b 50cm Atlantis.  It would be such a great help to see and standover one.  

Dave Johnston

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Jul 12, 2020, 11:19:54 AM7/12/20
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Last year the 50cm Atlantis was a 26" bike as we discussed earlier, so I'm not sure how many 650b versions are actually out there in the wild.

The posted geometry pages haven't been updated since 2019 so I'm not even sure what all has changed.

Otherwise without further info I would expect the 51cm Appaloosa and 50cm Atlantis to ride very similar, with the Atlantis having one extra cm of stand over clearance, and 1cm less stack and about the same reach, but it is quite possible Grant made the 2020 Atlantis and 2021 Appaloosa longer in the top tube, every year the top tubes and chain-stays seem to get longer.

-Dave

Bill Lindsay

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Jul 12, 2020, 11:33:47 AM7/12/20
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How many 50cm 650b Atlantis’ do you figure have been sold? My guess would be about 20. What percentage of Rivendell customers frequent the relevant Google Groups boards? I’d guess probably around 1/50. Maybe less. What percentage of the US population is within two hours of Springfield Massachusetts? Maybe 1%?

Even if I’m way off and Rivendell has sold 50 of them, lots of people don’t want to invite strangers to their home and in summer 2020 people are even more careful about unnecessary contact.

Your hard work on research is admirable but I have no trouble believing you haven’t found a test fit specimen yet.

Maybe you could convince one of the shops to build one for their sales floor. You offer to buy a $500 store credit and they build up a new 50cm Atlantis for the floor. You ride it and if you like it you buy it. If you don’t like it you use your $500 store credit on other things.

Maybe you could start with finding anyone with an 50cm 650b Atlantis. Maybe that person is 3 hours away or 5. Maybe once you find that person you’ll find a way to get on the bike.

Bill Lindsay
El Cerrito Ca
My 650b Atlantis is a 56 and is no longer made

Joel Stern

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Jul 12, 2020, 11:45:12 AM7/12/20
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Dave, so it is just the 2020’s then.  So now it makes sense.  Thanks

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Joel Stern

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Jul 12, 2020, 11:48:02 AM7/12/20
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I was lucky enough to find a kind list member and tries his 51 Appaloosa that I am leaning toward, if one shows up I will snatch it up.  Just want to try the 650b Atlantis but until now I did not understand these are new for 2020. 

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Ryan M.

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Jul 12, 2020, 12:30:22 PM7/12/20
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If I remember correctly, the Appaloosa was designed with the Chaco bars in mind, so more swept back and has a longer top tube length.

I have a 51 cm Appaloosa and have had the Chaco moose bars on it originally and now have a set of Bullmoose bars on it. The change in riding position was noticeable between the two bars but neither are bad And both are pleasant. I changed bars mostly as an experiment and could go back to the chacos in the future. Anyway, it seems like the Atlantis would be a little more friendly for drop bars if you were thinking about them...maybe a little shorter reach. Stand over probably is pretty comparable between the two. I’m personally over drop bars after having realized I never ride in the drops.

I’m 5’6.5” - 5’ 7” tall depending on how my body feels that day, with a 79pbh that I have self measured several times. The stand over height of the Appaloosa does not bother me.

Just some data points. I have owned and ridden a 48c Sam Hillborne, 51cm Roadeo, 53cm Toyo built Atlantis with 26” wheels, 51cm Appaloosa and now a 51.5cm Frank Jones Sr. They all seemed to fit me fine.

Joel Stern

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Jul 12, 2020, 12:50:43 PM7/12/20
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Ryan, I ride with Albatross bars.  The TT on the Atlantis 650b 50cm and the 51cm Appaloosa are the same.  Given that it would be just a touch easier, in my mind, to get the bars higher on the Appaloosa but maybe I am wrong.  My standover is a bit more than 80.5. The TT slightly brushed me on the 51 Appaloosa but not in a bad way. The old Riv philosophy was to ride the largest frame you could to get the bars high and show little TT.  With the ne philosophy of having less frame sizes  that seems to have changed.  I like the Appaloosa a lot, I love the orange, just looks very classy.  



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John Hawrylak

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Jul 13, 2020, 10:59:01 AM7/13/20
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Joel

Using Bill Lindsay's analysis and assuming 10% of the US population in within 2H of Springfield MA, your chances of finding a 650B 50cm Atlantis is less than 1 in 10,000.   Suggest you pursue other methods. 

Just checked RBW website and using the Bill Lindsay method of stock determination, they have ten (10) 650B 50cm Atlantis frames in stock.  Perhaps Bill's suggestion of a RBW dealer ordering 1 for you to test makes sense.

From previous posts, your major concern is SOH and the RBW's NOT specifying SOH in the geo charts for the the Atlantis or the JoeyA.  You seem torn between the 2.

I would expect a 50cm Atlantis SOH to be 1cm LOWER than the 51cm JoeyA: same TTL and tire size, lower BBD, minor HTA/STA differences.  A Technomic stem should give you enough bar height.

Suggest calling RBW and insisting to speak to Grant to help you decide.    You can tell him your concerns of RBW fitting the largest frame, SOH, and bar height.  

John Hawrylak
Woodstown NJ

On Sunday, July 12, 2020 at 12:50:43 PM UTC-4, Joel Stern wrote:
Ryan, I ride with Albatross bars.  


On Sun, Jul 12, 2020 at 12:30 PM Ryan M. <ryan.merr...@gmail.com> wrote:
If I remember correctly, the Appaloosa was designed with the Chaco bars in mind, so more swept back and has a longer top tube length.

I have a 51 cm Appaloosa and have had the Chaco moose bars on it originally and now have a set of Bullmoose bars on it. The change in riding position was noticeable between the two bars but neither are bad And both are pleasant. I changed bars mostly as an experiment and could go back to the chacos in the future. Anyway, it seems like the Atlantis would be a little more friendly for drop bars if you were thinking about them...maybe a little shorter reach. Stand over probably is pretty comparable between the two. I’m personally over drop bars after having realized I never ride in the drops.

I’m 5’6.5” - 5’ 7” tall depending on how my body feels that day, with a 79pbh that I have self measured several times. The stand over height of the Appaloosa does not bother me.

Just some data points. I have owned and ridden a 48c Sam Hillborne, 51cm Roadeo, 53cm Toyo built Atlantis with 26” wheels, 51cm Appaloosa and now a 51.5cm Frank Jones Sr. They all seemed to fit me fine.

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J L

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Jul 14, 2020, 5:28:11 PM7/14/20
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Joel,

Why not a step through frame like the Clem Smith L, Clemintine, or upcoming Platapus? Those bike models are not limited in use, have low stand over, and ability to get bars high as you need.

Jason
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