Weights of my bikes

On Thursday, May 20, 2021 at 6:30:39 PM UTC-7, Frank Krygowski wrote:
On 5/20/2021 3:57 PM, Tom Kunich wrote:
On Thursday, May 20, 2021 at 9:36:15 AM UTC-7, Frank Krygowski wrote:
On 5/20/2021 11:33 AM, Tom Kunich wrote:


Acceleration of gravity is 8 m/2^2 ...
No.

You just love it when I make a typo. That gives you the chance to pretend that I'm wrong.

Didn't you mean TWO "typos"? ;-)

So it is your opinion that 9.8 m/s^2 is not the acceleration of gravity? Sorry, you missed another great chance and instead simply looked like John with his copying and pasting Google because he doesn't know anything himself.

On Thursday, May 20, 2021 at 6:50:22 PM UTC-7, AMuzi wrote:
On 5/20/2021 8:32 PM, Frank Krygowski wrote:
On 5/20/2021 8:06 PM, AMuzi wrote:
I bought a house with a wringer washer and was quite happy
with it- excellent for slimy bicycle mechanic
oil-impregnated clothing. But when a girlfriend moved in I
bought an actual modern (1978) washer. I miss the wringer,
it was better.

Retrogrouches unite!


With a simple (RadioShack) 1970s electro-mechanical timer,
one might run the wash for an hour or 90 minutes on leaving
in the morning. Run the rinse at end of day, wring and dry.

And back then we had laundry soap which has disappeared.
Only detergents now, which are very different.

Interesting note: I have a white coffee cup that I like because its shape makes it difficult to spill and I cannot walk evenly. I cannot even make my fingers do fine operations anymore. This cup was hand-thrown by someone that obviously didn't know how to glaze well and it wasn't a thick nor fine enough glaze and hence, it stains from the coffee. I wash it well and try bleach but the bleach became ineffective after the first couple of uses. My wife who hates washing dishes with a passion, put it in with a load in the dishwasher. Whatever the hell that dishwashing detergent is brought the cup back to 90% of new. One shivers to think of what it could do to your skin.

On Friday, May 21, 2021 at 1:35:52 AM UTC-7, Ade wrote:
On 20/05/2021 16:36, Roger Merriman wrote:

My commute bike will hit the 20,000 mile mark (that I have recorded) later
this year.

It is though a old MTB so fairly solidly built, half of its life was as MTB
so low miles but fairly rough existence, since then it’s been my commute
beastie most of the miles have been on the commute as I do 3k or so
commuting a year, is fairly well loaded ie panniers and what not.

I do know of folks where the frame has failed but these a) do tend to be
road bikes, b) tends to be some corrosion.

Yep I meant road bikes, made to be light.

My most recent bike is from Halfords, cheap aluminium, but heavy. It is
currently at about the 16,000 km (10,000 mile) mark. I expect the extra
weight will make it more resilient. The forks, which were apparently
steel, did get a significant rust crack, which I had replaced.
I suspect that most bikes spend their life in the shed, but there will be a
significant minority who clock up silly miles.

The ones who I know change bikes regularly, to keep up with the latest
features.

The Douglas Vector Aluminum bike made a bike that weighed 16.4 lbs. The Eddy Merckx Elite is about a lb. heavier and rides pretty closely to the titanium bike which is 2 lbs. heavier. The problem with the Eddy is that it has racing geometry and so is pretty difficult to control when I'm climbing at my usual snails pace.

On Friday, May 21, 2021 at 7:50:20 AM UTC-7, Tom Kunich wrote:
On Friday, May 21, 2021 at 1:35:52 AM UTC-7, Ade wrote:
On 20/05/2021 16:36, Roger Merriman wrote:

My commute bike will hit the 20,000 mile mark (that I have recorded) later
this year.

It is though a old MTB so fairly solidly built, half of its life was as MTB
so low miles but fairly rough existence, since then it’s been my commute
beastie most of the miles have been on the commute as I do 3k or so
commuting a year, is fairly well loaded ie panniers and what not.

I do know of folks where the frame has failed but these a) do tend to be
road bikes, b) tends to be some corrosion.

Yep I meant road bikes, made to be light.

My most recent bike is from Halfords, cheap aluminium, but heavy. It is
currently at about the 16,000 km (10,000 mile) mark. I expect the extra
weight will make it more resilient. The forks, which were apparently
steel, did get a significant rust crack, which I had replaced.
I suspect that most bikes spend their life in the shed, but there will be a
significant minority who clock up silly miles.

The ones who I know change bikes regularly, to keep up with the latest
features.
The Douglas Vector Aluminum bike made a bike that weighed 16.4 lbs. The Eddy Merckx Elite is about a lb. heavier and rides pretty closely to the titanium bike which is 2 lbs. heavier. The problem with the Eddy is that it has racing geometry and so is pretty difficult to control when I'm climbing at my usual snails pace.
Yesterday I did another 2000 ft of climbing and all of the weaving about of the Eddy was sort of a pain in the butt. Whereas the Eddy is perfect at speed, the geometry has the bike weaving back and forth at 4-5 mph on these 10-12% climbs. Funny thing - in the places that lead to or from the more expensive areas of town, I am often passed by young men on super expensive bikes that weigh about the same as the bikes I have. But they are paying a great deal more for them. This Eddy would be perfect for most of these guys since it too weighs about the same or a little less than the Trek Emonda I had. But, like, man, its OLD.

On 5/21/2021 10:36 AM, Tom Kunich wrote:
On Thursday, May 20, 2021 at 6:30:39 PM UTC-7, Frank Krygowski wrote:
On 5/20/2021 3:57 PM, Tom Kunich wrote:
On Thursday, May 20, 2021 at 9:36:15 AM UTC-7, Frank Krygowski wrote:
On 5/20/2021 11:33 AM, Tom Kunich wrote:


Acceleration of gravity is 8 m/2^2 ...
No.

You just love it when I make a typo. That gives you the chance to pretend that I'm wrong.

Didn't you mean TWO "typos"? ;-)

So it is your opinion that 9.8 m/s^2 is not the acceleration of gravity?

If anyone can explain Tom's blather to me, please do. What he wrote
above makes absolutely no sense.


--
- Frank Krygowski

Ade wrote:
On 20/05/2021 16:36, Roger Merriman wrote:

My commute bike will hit the 20,000 mile mark (that I have recorded) later
this year.

It is though a old MTB so fairly solidly built, half of its life was as MTB
so low miles but fairly rough existence, since then it’s been my commute
beastie most of the miles have been on the commute as I do 3k or so
commuting a year, is fairly well loaded ie panniers and what not.

I do know of folks where the frame has failed but these a) do tend to be
road bikes, b) tends to be some corrosion.


Yep I meant road bikes, made to be light.

My most recent bike is from Halfords, cheap aluminium, but heavy. It is
currently at about the 16,000 km (10,000 mile) mark. I expect the extra
weight will make it more resilient. The forks, which were apparently
steel, did get a significant rust crack, which I had replaced.

Depends on how cheap! Some use quite low quality alloys.

I suspect that most bikes spend their life in the shed, but there will be a
significant minority who clock up silly miles.


The ones who I know change bikes regularly, to keep up with the latest
features.

Some maybe, but since some folks do clock up fairly impressive mileages
10,000 miles comes up very quickly, for them.

In short while yes a lot of bikes will either just sit in the shed or do
low miles, some will get quite huge mileage, number of folks in my bike
club who clock up between 10/5k per year.

Thus bike company’s would have to allow for that when designing a frame.

Roger Merriman.

On 18/05/2021 00:37, John B. wrote:
On Mon, 17 May 2021 19:53:11 +0100, Ade
wrote:

On 17/05/2021 18:39, Tom Kunich wrote:
Colnago CLX3.0 bare - 15.8 lbs Lemond Zurich bare - 20.3 lbs
Douglas Vector with seatpack. - 17.4 Douglas Ti with water bottle
and seat pack. - 20.3 lbs. Eddy Merckx with bottle half full and
heavy seatpack - 20.8

My 2018 Trek Emonda bare was 17.5 lbs.

As you can see, aluminum bikes do not necessary have a weight
penalty. Nor are titanium bikes particularly light.

I would say that since about 2001 that most decent bikes couldn't
be declared as "heavy". The complete Look KG585 which was a light
climbing bike was 16 lbs even bare.


Making bikes light is one thing, making them last is another.

My last allow bike was a Specialised Allez. The frame was light
enough, about 1.5KG (3 lbs in old speak). I weighed it when I
stripped it for return, it had cracked due to fatigue. It was a
thing of beauty, much nicer than the horrid oversized carbon frame
they replaced it with.

My previous alloy Trek failed at about the same distance, ~10,000
miles.

I thought the benefit of titanium was that like steel it had a
fatigue limit, meaning it wouldn't inevitably eventually fatigue
like aluminium. I know aluminium bikes can be made so the fatigue
failure takes a long time, but I suspect this adds weight. So I
bought a cheap heavy gravel type bike, it is real heavy, but
surprisingly fun to ride.

Given that the CDC reports that 70.2% of U.S. adults are overweight
or obese the frantic search for a lighter bicycle seems rather
futile.
https://www.niddk.nih.gov/health-inf...ity#definition

Not really, it's easier to push up a hill :-)

On Friday, May 21, 2021 at 12:40:27 PM UTC-7, Frank Krygowski wrote:
On 5/21/2021 10:36 AM, Tom Kunich wrote:
On Thursday, May 20, 2021 at 6:30:39 PM UTC-7, Frank Krygowski wrote:
On 5/20/2021 3:57 PM, Tom Kunich wrote:
On Thursday, May 20, 2021 at 9:36:15 AM UTC-7, Frank Krygowski wrote:
On 5/20/2021 11:33 AM, Tom Kunich wrote:


Acceleration of gravity is 8 m/2^2 ...
No.

You just love it when I make a typo. That gives you the chance to pretend that I'm wrong.

Didn't you mean TWO "typos"? ;-)

So it is your opinion that 9.8 m/s^2 is not the acceleration of gravity?
If anyone can explain Tom's blather to me, please do. What he wrote
above makes absolutely no sense.


--
- Frank Krygowski

I am not surprised you don't understand simple physics, https://www.physicsclassroom.com/cla...ion-of-Gravity

On Friday, May 21, 2021 at 4:19:57 PM UTC-7, Tosspot wrote:
On 18/05/2021 00:37, John B. wrote:
On Mon, 17 May 2021 19:53:11 +0100, Ade
wrote:

On 17/05/2021 18:39, Tom Kunich wrote:
Colnago CLX3.0 bare - 15.8 lbs Lemond Zurich bare - 20.3 lbs
Douglas Vector with seatpack. - 17.4 Douglas Ti with water bottle
and seat pack. - 20.3 lbs. Eddy Merckx with bottle half full and
heavy seatpack - 20.8

My 2018 Trek Emonda bare was 17.5 lbs.

As you can see, aluminum bikes do not necessary have a weight
penalty. Nor are titanium bikes particularly light.

I would say that since about 2001 that most decent bikes couldn't
be declared as "heavy". The complete Look KG585 which was a light
climbing bike was 16 lbs even bare.


Making bikes light is one thing, making them last is another.

My last allow bike was a Specialised Allez. The frame was light
enough, about 1.5KG (3 lbs in old speak). I weighed it when I
stripped it for return, it had cracked due to fatigue. It was a
thing of beauty, much nicer than the horrid oversized carbon frame
they replaced it with.

My previous alloy Trek failed at about the same distance, ~10,000
miles.

I thought the benefit of titanium was that like steel it had a
fatigue limit, meaning it wouldn't inevitably eventually fatigue
like aluminium. I know aluminium bikes can be made so the fatigue
failure takes a long time, but I suspect this adds weight. So I
bought a cheap heavy gravel type bike, it is real heavy, but
surprisingly fun to ride.

Given that the CDC reports that 70.2% of U.S. adults are overweight
or obese the frantic search for a lighter bicycle seems rather
futile.
https://www.niddk.nih.gov/health-inf...ity#definition

Not really, it's easier to push up a hill :-)
John is probably so overweight that he can't get up from the sofa without a lift.

Overweight is NOT a measurement. You can be overweight with just 5 lbs above your ideal weight for your body type. I am 6'4" and have a slender body type and I have an ideal weight of 180 lbs. So my 190 lbs. puts me overweight even though a "normal" body type has an ideal body weight of 185-190.

Gross Obesity is and it is only 1 in 7 Americans and most of those are Hispanics.

On Fri, 21 May 2021 07:43:20 -0700 (PDT), Tom Kunich
wrote:

Interesting note: I have a white coffee cup that I like because its shape makes it difficult to spill and I cannot walk evenly. I cannot even make my fingers do fine operations anymore. This cup was hand-thrown by someone that obviously didn't know how to glaze well and it wasn't a thick nor fine enough glaze and hence, it stains from the coffee. I wash it well and try bleach but the bleach became ineffective after the first couple of uses. My wife who hates washing dishes with a passion, put it in with a load in the dishwasher. Whatever the hell that dishwashing detergent is brought the cup back to 90% of new. One shivers to think of what it could do to your skin.

Probably nothing that soap wouldn't also do to your skin. A detergent
is a surfactant, which reduces the surface tension:
https://en.wikipedia.org/wiki/Detergent
https://en.wikipedia.org/wiki/Surfactant
"Most anionic and non-ionic surfactants are non-toxic, having LD50
comparable to table salt."

I also have a coffee cup that I really like, but which has a defective
glazing. I hand wash it with the rest of the dishes, but like yours,
that's usually not sufficient. About once per month, I wash it in
liquid dishwashing soap using my neighbors ultrasonic cleaner.
Cavitation (collapsing bubbles) does a superior job of cleaning out
the cracks and pits in the rough areas. However, ultrasonic cleaners
won't touch thick food and crud buildup on the cups surface, but does
well on thin coffee, tea, soup, or wine films.

--
Jeff Liebermann
PO Box 272 http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann AE6KS 831-336-2558