On Friday, May 20, 2016 at 6:33:37 PM UTC-7, Ron Mc wrote:
>
> No phone photo?
Really, Bill. No pics?!?! You could get banned from this forum, ya' know.
Curious Reid
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I had my phone in the charger in my car. As I was getting out of my car,
it occurred to me that I didn't have my phone. I thought about it for a
moment, and decided to just leave it behind. The tandem prototype is going
to have several things changed, Grant said. He's decided that the tandem
A likely story.
A) What were you doing with a car at RBW headquarters? Just doesn't add up.
B) If there was nothing earth shattering, then you clearly couldn't have
been at RBW.
C) Noone leaves an image capturing device behind when entering RBW.
But seriously, thanks for the intel, Bill. I am c
I showed up in my Chevy HHR SS once (since sold), then Mark and I talked about
it and his Mini Cooper Clubman. Car talk at RBW! Which reminds me, he needs to
see my FIAT 500 Abarth...
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Hi Bill,
Do you think the long chainstays would help the stoker's ride quality? That
might be a consideration to keep it longer (not a wheelbase thing).
Shoji
On Saturday, May 21, 2016 at 1:09:08 PM UTC-4, Bill Lindsay wrote:
>
> I had my phone in the charger in my car. As I was getting out of
Hi Shoji
I'm going to say "no", I don't think longer chainstays do anything for what
I would call "ride quality". That's just my opinion, and I don't have any
strong empirical evidence for it. Also, I've never been a stoker. I think
the 'ride quality' most people think about for stokers is j
On 05/23/2016 01:26 PM, Bill Lindsay wrote:
Hi Shoji
I'm going to say "no", I don't think longer chainstays do anything for
what I would call "ride quality". That's just my opinion, and I don't
have any strong empirical evidence for it. Also, I've never been a
stoker. I think the 'ride q
Same goes for single bikes. The longer chainstays on Rivendells move the wheel
a little farther back and help take the edge off of the bumps, compared to
“racing” bikes with shorter stays. In fact, my Richard Sachs has
long-than-racing-normal chainstays for the same reason. It has an inch of
cl
This makes sense, but I could see why it would matter less for a tandem.
For simplicity, imagine a rider on a single bike that sits exactly half way
between the axles. A 1" vertical bump at the rear wheel would be felt as
1/2" at the saddle. But on an imaginary tandem with equal 1/3 spacing
Keith is exactly right (in my humble opinion). Moving the rear wheel back
relative to one's tuckus reduces the magnitude of the bump you feel. How
much does it reduce the bump? By the same percentage that you increased
the wheelbase. So a 2.5cm increase of chainstay length increases the
whe
On 05/23/2016 01:53 PM, iamkeith wrote:
This makes sense, but I could see why it would matter less for a
tandem. For simplicity, imagine a rider on a single bike that sits
exactly half way between the axles. A 1" vertical bump at the rear
wheel would be felt as 1/2" at the saddle. But on
"But what would it feel like on a super short wheel base tandem where the
stoker is sitting virtually on top of the rear wheel? "
Let's look at numbers. I'll assert that the Salsa Powderkeg is a typical
enough tandem. 187cm wheelbase, 45cm chainstay, 74cm boom tube (connecting
the BBs).
Li
OK Steve. If you aren't comfortable with the math, give me the numbers and
I will hit the calculator buttons for you. What is the wheelbase of your
tandem of interest? what is the chainstay length of your tandem of
interest? What is the boom tube length? I'll be glad to run those numbers
f
On 05/23/2016 02:42 PM, Bill Lindsay wrote:
OK Steve. If you aren't comfortable with the math, give me the
numbers and I will hit the calculator buttons for you. What is the
wheelbase of your tandem of interest? what is the chainstay length of
your tandem of interest? What is the boom tube
For sure an unhappy stoker is a bummer. Tandems have evolved over the last
50 years, to be sure, and make the stoker's existence more pleasant.
On Monday, May 23, 2016 at 12:55:48 PM UTC-7, Steve Palincsar wrote:
>
> On 05/23/2016 02:42 PM, Bill Lindsay wrote:
> > OK Steve. If you aren't comf
Sprung saddle sounds like it would be standard for stoker.
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On 05/23/2016 04:56 PM, Lungimsam wrote:
Sprung saddle sounds like it would be standard for stoker.
except for the effect...
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