Roaduno shakedown

[J-D Bamford]

Finished building the Roaduno (my first Rivendell!) and took it on a 90 minute shakedown ride in Denver yesterday. Really smooth, enjoyable ride.

Long quill stem and VO Left Bank handlebars are a joy to view as well as feel in hand. The small army surplus pouch on the handlebars is a long time fave - just big enough for a small burly lock or mini-U and a couple other compact items. I hadn’t finished off the grips yet - wanted to ride/confirm my stem length first. Finished the build after dark and hadn’t noticed the upward tilt on my saddle while it was crooked in the stand… but this sure was comfortable while riding! Need to change the dyno light connectors from plastic plug (SP) to metal spade/socket (SON). Longer BB so I can run this triple as a single ring with ankle/cuff/grease guard. Wheels and tires aren’t the lightest, but I had the SON/Dyad front in hand so had Rich build up the rear on a Dyad to match. Shikoro 42mm tires feel a bit sluggish compared to RH - they’re the one item I’d do differently.

Much of this build came off my circa 2012 VO Polyvalent, which is going into semi-retirement as garage/wall art. Main difference between the bikes is that the PolyV turned on a dime due to its shorter wheelbase (by roughly 3”) and rando front geometry. Whereas the Roaduno is more of a long, gentle carver. With any load, like groceries, I always felt too on top of the PolyV, and it wasn’t reassuring esp if using rear-loaded panniers (where steering got numb). The Roaduno’s front end seems better balanced, and I assume it’ll handle loads of rear groceries with aplomb due to Riv’s stated design goals. This is my first Riv, so I’m mostly only going on reading Grant’s words over the last two decades.

[J-D Bamford]

Hella long chain coming from the formerly ‘normal’ (non-Riv) world, lol. 

Dos Eno cogs only intended for singlespeed… but offering options as needs (or tire sizes) might differ over the years. 

[P W]

Love this one!

Makes me want to put tanwalls on mine next…

P. W.

~

(917) 514-2207

~

On Nov 24, 2024, at 8:45 AM, J-D Bamford <isp...@gmail.com> wrote:



--
You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bun...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/rbw-owners-bunch/9d749e96-4380-47d0-9129-9e3608a63a47n%40googlegroups.com.

<IMG_9730.jpeg>

[Patrick Moore]

Yes, a pretty and, more important, what looks like a very efficiently and comfortably rideable build. 

What is the gearing — ie, what size ring and how many teeth on each cog?

To view this discussion visit https://groups.google.com/d/msgid/rbw-owners-bunch/ADBDDE0F-0AC5-4AB1-B56A-76571944C340%40gmail.com.

--

Patrick Moore

Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum

-------------------------------------------------------------------------------------------------------

Executive resumes, LinkedIn profiles, bios, letters, and other writing services

-------------------------------------------------------------------------------------------------------

When thou didst not, savage, know thine own meaning,

But wouldst gabble like a thing most brutish,

I endowed thy purposes with words that made them known.

[DavidP]

Great to see another Roaduno - lots to admire about this build! Thanks for sharing!

-Dave

[J-D Bamford]

IIRC it’s 42x19 (gain ratio ~2.2), running 700/42mm.

Previously on my PolyValent, I was running 42x17 (~2.5 gain ratio) with 650/48.

[Jason Fuller]

I also noticed the big difference on steering when I went from my previous low trail bike (Soma Grand Rando) to my first Riv (Hillborne) and 'carving' is exactly how I perceived it too! Not as immediately responsive but I much prefer it overall. Takes a small adjustment period.

Bike looks great! 

[Patrick Moore]

42/19 = 2.21 X 26.6 (per JimG; the numbers from that site pretty closely match my empirical measurements) = 58.8 gear inches.

I’m familiar enough with my own drivetrains to know how a 175 mm crank compares to a 170 with the same ring/cog X wheel diameter; the empirical upshot is a bit less than 1 tooth less for the longer crank; ie, the 48/17X25.6" 72” gear with 170 mm cranks on my Matthews errand road bike would be the more-or-less equivalent of a 48/16.5X26.5” gear with 175 mm cranks.

On Sun, Nov 24, 2024 at 6:46 PM J-D Bamford <isp...@gmail.com> wrote:

IIRC it’s 42x19 (gain ratio ~2.2), running 700/42mm.

 

On Sunday, November 24, 2024 at 3:30:38 PM UTC-7 Patrick Moore wrote:

… What is the gearing — ie, what size ring and how many teeth on each cog?

[J-D Bamford]

I think what you're saying here is that your quads are a lot bigger than mine.

[Bill Lindsay]

Patrick Moore will no doubt include a reference to his oft-repeated quote of Grant in reference to his "dolphin like thighs".  

The more direct take home is that Patrick Moore is a self-identified masher.  He often claims his epic 10 mile grocery runs are completed at ~14mph, and to ride ~14mph on a 72-inch gear, one pedals at 65RPM.  I've gathered while "spinners" tend to be comfortable in the 85-110RPM range, mashers like Patrick Moore are perfectly happy to grunt at 30RPM and cruise at 65RPM.  

Bill Lindsay

El Cerrito, CA

[Patrick Moore]

I am a masher, tho’ my thighs are hardly dolphin-like (and I’d forgotten about that happy metaphor until Bill brought it up). In fact, I rather dislike fast spinning because I run out of breath, which is very strange because 30+ years ago my normal flatland cruising gear was 64” - 65” (I recall the drivetrains and wheels and tires) and I could maintain 20-23 on long flat calm sections — not boasting, just telling. I’m not sure if switching to fixed gears for most of my riding made me a masher or if it was a radical repositioning in the bike thanks to Grant, from saddle all the way forward to saddle all the way back; I expect it was principally the latter and partly the former.

Patrick “low and slow” in ABQ, NM

--

You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bun...@googlegroups.com.

To view this discussion visit https://groups.google.com/d/msgid/rbw-owners-bunch/8e7a0063-1331-493f-9cb7-e26a57a3cb71n%40googlegroups.com.

[Bill Lindsay]

"I’d forgotten about that happy metaphor until Bill brought it up"

Type "Dolphin" into the search bar for the web-page view of either RBWGroup or I-Bob and you'll see the metaphor repeated ~10x by Patrick Moore.  I guess I pay too much attention to what I read...

BL in EC

[Ryan]

I didn't know dolphins had thighs :) I thought it was "dolphin-like lungs"

[Ryan]

and not to throw shade on Bill or Patrick...the reason I came up with dolphin-like lungs was this:

In one of the early Readers, I remember shortly after the Ramboullet was introduced , someone (Henry Kingsman, I think his name was) used the Ram on a multi-day hilly tour carrying ~20 lbs of gear, camping, I think and Grant characterised him as having dolphin-like lungs. As I recall, Kingsman had high praise for the bike

https://upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Dolphin_Anatomy.svg/600px-Dolphin_Anatomy.svg.png 

Yup...large lungs

[Doug H.]

It's all about the lungs at some point. Strong thighs help but you need to lung capacity to truly mash for long stretches of road. Dolphin thighs would be fun to see! Ha

Doug

[Doug H.]

I had to check Google for Dolphin Thighs and here is what I found...

• In rare cases, dolphins have been found with extra fins near their tails, which may be remnants of hind limbs. These fins are much smaller than the dolphin's front fins and are about the size of human hands. A mutation may have caused these fins to develop. 

Dolphins evolved from small, four-legged animals with hooves that lived on land about 50 million years ago. They likely transitioned to an aquatic lifestyle and lost their hind limbs over time.

[Bill Lindsay]

It is entirely possible that Grant never said "Dolphin Thighs".  I wasn''t quoting Grant.  I was quoting Patrick Moore claiming to quote Grant repeatedly over the last decade.  If Patrick Moore actually made it up or misread it, that would be pretty funny.  

Bill Lindsay

El Cerrito, CA

[Ryan]

I love Doug H's post and picture although Ms. Dolphin hardly has thunder thighs  :) I'll buy it!

[Joe Bernard]

He may have misheard "Dolph Lundgren thighs" 

[Patrick Moore]

Long, long ago in an early Rivendell Reader Grant quipped about the difference between “your slender arms and your dolphin-like thighs” or something like that. I forget the article or issue.

Bill follows my writing much more closely than I do.

On Tue, Nov 26, 2024 at 6:42 AM Doug H. <dhansf...@gmail.com> wrote:

I had to check Google for Dolphin Thighs and here is what I found...

• In rare cases, dolphins have been found with extra fins near their tails, which may be remnants of hind limbs. These fins are much smaller than the dolphin's front fins and are about the size of human hands. A mutation may have caused these fins to develop. 

Dolphins evolved from small, four-legged animals with hooves that lived on land about 50 million years ago. They likely transitioned to an aquatic lifestyle and lost their hind limbs over tim