Cyclometer and Cargo Bikes...

On Sun, 20 Aug 2017 11:13:39 +0200, Tosspot wrote:

So, I have one of these;

https://www.larryvsharry.com/

and I want a cycle computer, The problem is the standard wired ones
don't have the cable length to get from either the front wheel or the
back wheel to the handlebar. The cheapish radio one didn't have the
range either.

I tried splicing in some bell wire, which worked, but the problem is the
strands in the cable are very fine and hard to solder[1] and eventually
failed. Now I notice I have an old replacement generic handle bar
mount, and the cable coming from the mount is quite thick. I could
solder some bell wire to that and solder...

What onto the other end? Are cyclometer sensors just a reed switch?
Hall Effect? Anyone had one apart to look?

[1] See https://youtu.be/Mzcgyk62cHU?t=10

I also have a very shiny (well a bit dinged up now) Bluebird 71. I went
with the soldering a longer wire from the sensor on the front wheel to
the bars. Make sure you set the tyre size correctly on the device. A
change from 406 Shwalbe Marathon Racers in 1.50 to Marathon Plus in 1.95
caused a wild diversity in the readings.

Solder the cable together twisted ______|______ Then bend the sticky out
bit to one side and hold in place with heat shrink. A strong joint can be
obtained even using a cigarette lighter.

--
davethedave

On Tue, 22 Aug 2017 07:20:11 +0200, Tosspot wrote:

Heck, you could also get away with a much shorter cable if you mount
the speedometer on the top tube. Some Cateye versions like my Cateye
Padrone have a large enough display for that. That would likely even
work wirelesssly.

Then I'd crash trying to beat my current max speed :-)

Heh!

My best is 68kmh. (googles) 42.25mph.
--
davethedave

On 2017-08-22 03:12, dave wrote:
On Tue, 22 Aug 2017 07:20:11 +0200, Tosspot wrote:

Heck, you could also get away with a much shorter cable if you mount
the speedometer on the top tube. Some Cateye versions like my Cateye
Padrone have a large enough display for that. That would likely even
work wirelesssly.

Then I'd crash trying to beat my current max speed :-)

Heh!

My best is 68kmh. (googles) 42.25mph.


On a Bullitt cargo bike? Wow! That I would not dare to do. Was that with
a load?

--
Regards, Joerg

http://www.analogconsultants.com/

On 22/08/17 12:12, dave wrote:
On Tue, 22 Aug 2017 07:20:11 +0200, Tosspot wrote:

Heck, you could also get away with a much shorter cable if you mount
the speedometer on the top tube. Some Cateye versions like my Cateye
Padrone have a large enough display for that. That would likely even
work wirelesssly.

Then I'd crash trying to beat my current max speed :-)

Heh!

My best is 68kmh. (googles) 42.25mph.

You are ****ing joking! The steering is quite ok, but there is
noticeable play in it without adding in the 20" front wheel, and at 42mph!

On 2017-08-22 12:24, Tosspot wrote:
On 22/08/17 12:12, dave wrote:
On Tue, 22 Aug 2017 07:20:11 +0200, Tosspot wrote:

Heck, you could also get away with a much shorter cable if you mount
the speedometer on the top tube. Some Cateye versions like my Cateye
Padrone have a large enough display for that. That would likely even
work wirelesssly.

Then I'd crash trying to beat my current max speed :-)

Heh!

My best is 68kmh. (googles) 42.25mph.

You are ****ing joking! The steering is quite ok, but there is
noticeable play in it without adding in the 20" front wheel, and at 42mph!


Though there are countries where they do stuff like that on overloaded
bikes:

https://www.youtube.com/watch?v=fkk9HCD-Xkc

Check out the guys at 2:20min and 4:30min.

--
Regards, Joerg

http://www.analogconsultants.com/

On Tue, 22 Aug 2017 07:33:03 -0700, Joerg wrote:

snip

Then I'd crash trying to beat my current max speed :-)

Heh!

My best is 68kmh. (googles) 42.25mph.


On a Bullitt cargo bike? Wow! That I would not dare to do. Was that with
a load?

Not really laden. Standard bag of crap; water, tools, book etc. Down
hill. This hill in fact. https://goo.gl/iBp2Dn It does have a steering
damper which makes it way less scary.

--
davethedave

On Tue, 22 Aug 2017 21:24:01 +0200, Tosspot wrote:

On 22/08/17 12:12, dave wrote:
On Tue, 22 Aug 2017 07:20:11 +0200, Tosspot wrote:

Heck, you could also get away with a much shorter cable if you mount
the speedometer on the top tube. Some Cateye versions like my Cateye
Padrone have a large enough display for that. That would likely even
work wirelesssly.

Then I'd crash trying to beat my current max speed :-)

Heh!

My best is 68kmh. (googles) 42.25mph.

You are ****ing joking! The steering is quite ok, but there is
noticeable play in it without adding in the 20" front wheel, and at
42mph!

I did way naughtier speeds with The Bear et al on my ZX7R. Get the
steering damper kit. Works magic. Mine's now 5 years old and I have
done a **** ton of miles on it. We bonded. It doesn't go that quick
anymore due to gearing change. Down to 34tooth front 23tooth cog on an
Alfine 11. Hills suck on the way up but, Jesus! Gravity really does have
a firm hold on all that weight.

--
davethedave

On 2017-08-23 06:37, dave wrote:
On Tue, 22 Aug 2017 07:33:03 -0700, Joerg wrote:

snip

Then I'd crash trying to beat my current max speed :-)

Heh!

My best is 68kmh. (googles) 42.25mph.


On a Bullitt cargo bike? Wow! That I would not dare to do. Was that with
a load?

Not really laden. Standard bag of crap; water, tools, book etc. Down
hill. This hill in fact. https://goo.gl/iBp2Dn It does have a steering
damper which makes it way less scary.


Oh man! I am a pretty hardcore MTB trail and gnarly road rider but that
I would not dare to do.

--
Regards, Joerg

http://www.analogconsultants.com/

Oh man! I am a pretty hardcore MTB trail and gnarly road rider

What makes you say that? Some examples, please, of what makes your riding 'gnarly'

On 8/23/2017 6:21 PM, Doug Landau wrote:

Oh man! I am a pretty hardcore MTB trail and gnarly road rider

What makes you say that? Some examples, please, of what makes your riding 'gnarly'


Maybe following behind Joerg for a few hundred feet of
offroad climb before being dropped? That's pretty gnarly.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971