Tandem(what make)

[limosine]

Baie dankie aan almal wat raad gegee het oor my vraag oor tandems. Ek is nuut op die forum en dit het baie gehelp om elkeen se opinie te hoor. Die enigste probleem is dat ek nou nog meer deurmekaar is . Ek gaan nou na 3(Raleigh,Ravo en Connondale) kyk en dan besluit.

Ek sien daar is nou 'n nuwe "bitch en moam" vraag.

Maar dis inligting soos wat ek oor die tandem gekry het wat hierdie forum GREAT maak!!!!!

 

Doen so voort

[Slowbee]

holy smokes .. you guys are a real amazing source of information ...

 

 

[Johan Bornman]

" I also "tie and solder" wheels for certain applications. This is the process of tying the spokes at the last crossing before the rim. It can transform a pair of wheels! Keener steering response and better power transfer are but two of the advantages. It also enhances safety. If a spoke were to break' date=' it is attached to the adjacent spoke, and doesn?t become entangled in the derailleur or hub. Tying and soldering has no effect on the ability of the wheels to be trued should they ever need it. There are a lot of myths floating around about negative ride quality issues with tying soldering. Wheels were never intended to act as a suspension element for the rider any more than the Golden Gate bridge was intended to act as a cushion. Wheels can be likened to pre-stressed concrete structures in that each spoke is under several hundred pounds of tension. That high tension helps prevent spoke breakage. If your wheels are soft enough to be cushy, they will almost certainly be breaking spokes as well."

[/quote']

 

Oh no! Not this 100 year old myth again.

 

1) Keener response.  Puhlease. How?

2) Safety. Puhlease. How? People break spokes all the time and the only time they notice it is when they wash the bike. Spokes break without drama or threat to life and limb.

3) The bit about the bridge I can't fathom.

4) Tension helps prevent spoke breakage. It happens to be true but I doubt this author arrived at that point through fact and reason.

5) The author implies that high tension takes away cushiness. Well, spokes are made of a Hookean material and higher tension doesn't take away cushiness.

 

But anyway, I'm sure you're just trolling.

 

 

 

[cyclenut]

Anyone using a sprag clutch  My wife can't handle my cadence and often gets bounced out the saddle so I'm considering this as an alternative to wrecking my knees by riding bigger gears

JB - is there a down-side to this

 

[A sprag is a one-way freewheel clutch used in a number of applications. It resembles a roller bearing with rollers shaped like a figure eight and cocked with a spring. When the unit rotates in one direction, the rollers stand up and bind because of oil friction, and when the unit is rotated in the opposite direction, the rollers slip or freewheel.]

[bob_the_builder]

 

 

But anyway' date=' I'm sure you're just trolling.

 

 

 

[/quote']

 

No, actually someone, was it you? Asked why solder wheels. you'll see these aren't my words, and I posted the site they came off of, and I also posted a link to a site with an opposing view.

 

[jmaccelari]

 

But anyway' date=' I'm sure you're just trolling.

[/quote']

No, actually someone, was it you? Asked why solder wheels. you'll see these aren't my words, and I posted the site they came off of, and I also posted a link to a site with an opposing view.

Bob - that was why I littered my post with lots of disclaimers. Methinks certain

people take themselves just a tad too seriously (<TROLL>remember the guy who

told people on TV to remove the safety flanges for their Q-R skewers - now that's a

bit of 100 year old amateur backyard advice...</TROLL>).

 

BTW, thanks for the interesting post...

 

[decibach db]

I had an Excocet before... but not making those anymore.

 

Bought a Titan (old Fuel) last year... very impressed with the tandem.

 

 

 

It all depends how much you want to pay for a tandem.

 

 

 

 

[eliminator]

cut cut... What was also very neat on the Ravo is that there is place for 5 water bottles. One more can fit on the back post.

 

Why are so many roadies reluctant to use hidration packs (water skins)? My captain insisted that I get one and we've done a race without water bottles. Now we put the energy mix in the bottle and the water on the back. Those packs are small and would probably have a lesser effect on aerodynamics than the bottles...  I also like the RAVO though...

[jmaccelari]

 

cut cut... What was also very neat on the Ravo is that there is place for 5 water bottles. One more can fit on the back post.

 

Why are so many roadies reluctant to use hidration packs (water skins)? My captain insisted that I get one and we've done a race without water bottles. Now we put the energy mix in the bottle and the water on the back. Those packs are small and would probably have a lesser effect on aerodynamics than the bottles...  I also like the RAVO though...

My tuppence (1p per item):

- I had Doug Paterson put and extra two water bottle cages on my Raleigh. I only

  use two, but my stoker is a thirsty lad (I work him hard), so 5 is nice to have;

- I really find Camelbaks uncomfortable. I also like to have plain water, so have

  one bottle drink and the other water. On the MTB, I use the smallest pack

  - a Hydrapak - for my spares as I don't like saddle bags or spares in my pocket.

 

[jmaccelari]

Latest: just got a 60mm stem for the pilot seat on my Raleigh. As I stated

earlier, the sizing XL (pilot) and M (stoker) meant the handlebars were

waaaay too far forward (even with my seat fully adjusted). The 60mm stem has

sorted this out - it's a nice BBB Ultraforce.

 

Is this XL/M sizing pretty standard? The other option was L/S.

 

[eliminator]

 

cut...

 

2) Safety. Puhlease. How? People break spokes all the time and the only time they notice it is when they wash the bike. Spokes break without drama or threat to life and limb.

 

...cut 

 

 

I can vouch for that...  We first noticed a vibration on the tandem when we reached 70km/h into the dip on Cedar Road. This was much like the vibration on your car when the wheel balancing is out. After the Argus the rim was a bit buckled ? the rear brake caught uneven. The Titan was then taken to Jacques who found a broken spoke. Later when Jacques fitted the q-rings he found another broken spoke?

[jmaccelari]

 

 

cut...

 

2) Safety. Puhlease. How? People break spokes all the time and the only time they notice it is when they wash the bike. Spokes break without drama or threat to life and limb.

 

...cut 

 

I can vouch for that...  We first noticed a vibration on the tandem when we reached 70km/h into the dip on Cedar Road. This was much like the vibration on your car when the wheel balancing is out. After the Argus the rim was a bit buckled ? the rear brake caught uneven. The Titan was then taken to Jacques who found a broken spoke. Later when Jacques fitted the q-rings he found another broken spoke?

Thanks for that info. I must admit when I read a post that just rubbishes opinions

without a single shred of evidence, I get a little dubious.

 

Thanks for the (constructive) feedback. I look forward to soldering my spokes!

 

[WorcesterWheelers]

The best value for money around is certainly the Raleigh.

 

My 2c.

[Johan Bornman]

Thanks for that info. I must admit when I read a post that just rubbishes opinions
without a single shred of evidence' date=' I get a little dubious.

Thanks for the (constructive) feedback. I look forward to soldering my spokes!
[/quote']

 

I can't quite figure it out, but I take it that somewhere in your post is a dismissal of the notion that tying and soldering spokes is nonsense.

 

You'll still get to know me on The Hub. I may be cranky but opinion is not something I give without explicitly stating that it is opinion. And then I only voice my opinion on this or that colour, or this or that hairstyle. When it comes to things technical, all you'll see from me is fact.

 

That there is no benefit to tying and soldering spokes is fact, not opinion. I repair dozens of wheels per month and I've never come across anyone who has had some sort of misfortue where the broken spoke posed some danger. And I'm talking of spokes breaking off at any side.

 

Further, I have a set of measurements done on a tied and soldered wheel before and after, and there is nothing in there that suggests any of the claimed benefits of this archaic practice. Anyone who suggests otherwise doesn't understand how spokes support a wheel.

 

But since you're big on evidence, please give us a shred or two, I am sure several people here look forward to debating the issue.

 

 

 

 

[jmaccelari]

 

 

 

 

I can't quite figure it out' date=' but I take it that somewhere in your post is a dismissal of the notion that tying and soldering spokes is nonsense.

[/quote']

Nope - I stated that there is evidence that it makes no difference to the

structural response of the wheel in a test. This is quite different to stating

the procedure is "nonsense".

 

 

You'll still get to know me on The Hub. I may be cranky but opinion is not something I give without explicitly stating that it is opinion. And then I only voice my opinion on this or that colour' date=' or this or that hairstyle. When it comes to things technical, all you'll see from me is fact.

[/quote']

Fact is quite often opinion wrapped up in BS...

And yes: we can all be cranky! 

 

 

That there is no benefit to tying and soldering spokes is fact' date=' not opinion. I repair dozens of wheels per month and I've never come across anyone who has had some sort of misfortue where the broken spoke posed some danger. And I'm talking of spokes breaking off at any side.

[/quote']

It is a "fact" in your opinion. There are facts of a similar nature on the

"What was thread about? - can't remember!" thread. Some people

who solder lots of spokes every month state it does have an effect. Also, has anyone

tested the effect that soldering has on preventing the wheel from going out of true

when a spoke breaks, for example? If guys are riding bikes with broken spokes and

don't even notice it until it goes to the wheel builder, surely there is some effect, no

matter what your personal opinion is? Even if it's just not having the spoke flapping

around in the wind.

 

 

Further' date=' I have a set of measurements done on a tied and soldered wheel before and after, and there is nothing in there that suggests any of the claimed benefits of this archaic practice. Anyone who suggests otherwise doesn't understand how spokes support a wheel.

[/quote']

Again you reduce your argument to "you are a fool if you disagree with me"... Am I

supposed to be intimidated and back down?

 

I have also seen the results from a single test. This only looks at a "laboratory" setup,

yet there is a lot of anecdotal evidence that it does make a difference. I am asking

"Is there any difference I can notice?".

 

 

But since you're big on evidence' date=' please give us a shred or two, I am sure several people here look forward to debating the issue.

 

[/quote']

Unlike you, Johan, I am not on a personal crusade to prove how much I know. I

admit I do not know enough about the topic, but at least I have an open mind about

it. I want to solder my spokes to see if I (not a piece of laboratory) equipment can

notice any difference. Some people say "yes", some say "no". I say "I don't know"...

 

I am not stating that soldering makes any difference. The proof of the pudding will

be in the eating (and it is possible it may be a purely psychological advantage!).

jmaccelari2008-05-12 01:42:46

[TheLegend]

 

Unlike you' date=' Johan, I am not on a personal crusade to prove how much I know. I admit I do not know enough about the topic, but at least I have an open mind about it.

 

[/quote']