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Search: Posts Made By: chorlton
Showing results 1 to 50 of 277
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Forum: Bicycle Mechanics
01-18-23, 06:33 AM
Replies: 69
Views: 4,580
Posted By chorlton

Seeing this and some of the other examples I am...

Seeing this and some of the other examples I am immediately thinking disk brake rather than Dork disc?
Forum: Bicycle Mechanics
01-11-23, 08:22 AM
Replies: 69
Views: 4,580
Posted By chorlton

Just to be wrong the guys test methodology is...

Just to be wrong the guys test methodology is broken. He uses his treadmill to spin the wheels and then drops the chain with minimal torque on the cranks and, as a result, no realistic, short/long...
Forum: Bicycle Mechanics
11-19-22, 11:33 AM
Replies: 53
Views: 2,531
Posted By chorlton

OK. Try it this way. We, almost, accept that...

OK. Try it this way. We, almost, accept that angle of a spoke sets its tension. The smaller the angle the greater the tension. On my front wheel the sums, which may not be correct, show a calculated...
Forum: Bicycle Mechanics
11-18-22, 09:42 AM
Replies: 53
Views: 2,531
Posted By chorlton

Apologies for the bump and also apologies for not...

Apologies for the bump and also apologies for not responding to the most excellent replies. In particular the concern about differential torsion applied to the hub. That one really made me wonder to...
Forum: Bicycle Mechanics
09-15-22, 10:02 AM
Replies: 53
Views: 2,531
Posted By chorlton

Using a Spoke Tensiometer

Food for thought.

Some time ago I wrote a program to calculate spoke lengths and it did the job but I also went and included something that gave the predicted spoke tensions based on the shortest...
Forum: Bicycle Mechanics
01-29-18, 02:30 PM
Replies: 49
Views: 4,605
Posted By chorlton

Unfortunately by virtue of the fact that I wrote...

Unfortunately by virtue of the fact that I wrote it the program is pretty dumb. It is, after all, just trigonometry. You do however pose a very interesting question in as much as it seems like you...
Forum: Bicycle Mechanics
01-28-18, 08:34 PM
Replies: 49
Views: 4,605
Posted By chorlton

Perhaps not but Google appears to be full of...

Perhaps not but Google appears to be full of people waving their spoke tension meters at wheels asking questions about difference in tension of same side spokes and, according to me, the difference...
Forum: Bicycle Mechanics
01-28-18, 08:20 PM
Replies: 49
Views: 4,605
Posted By chorlton

You appear to be on the wrong side of the Pauli...

You appear to be on the wrong side of the Pauli Exclusion Principle.



Gosh.. Same side spokes exit the flange on opposite sides at different axial angles because of the width of the flange. In...
Forum: Bicycle Mechanics
01-28-18, 07:32 PM
Replies: 49
Views: 4,605
Posted By chorlton

Thanks for the concern but things are fine.

Thanks for the concern but things are fine.
Forum: Bicycle Mechanics
01-28-18, 07:29 PM
Replies: 49
Views: 4,605
Posted By chorlton

kgf...

kgf...
Forum: Bicycle Mechanics
01-28-18, 07:00 PM
Replies: 49
Views: 4,605
Posted By chorlton

Next up you will bypass Heisenberg and introduce...

Next up you will bypass Heisenberg and introduce the cat owned by Schrödinger.



Given I am used to you I have acquired a certain level of immunity to such suggestions from yourself.


...
Forum: Bicycle Mechanics
01-28-18, 06:19 PM
Replies: 49
Views: 4,605
Posted By chorlton

Good spot. Accuse Hillary of your own...

Good spot. Accuse Hillary of your own indiscretions and get your Fox mates to re-enforce the misdirection . Next up... Godwin.
Forum: Bicycle Mechanics
01-28-18, 06:14 PM
Replies: 49
Views: 4,605
Posted By chorlton

OK... using your logic then by extension you are...

OK... using your logic then by extension you are suggesting that Drive side and Non Drive side spokes on a dished rear wheel can have the same tension.

Perhaps you should file for a patent on that...
Forum: Bicycle Mechanics
01-28-18, 06:07 PM
Replies: 49
Views: 4,605
Posted By chorlton

Plug in your own number. ...

Plug in your own number.

...
Forum: Bicycle Mechanics
01-28-18, 06:05 PM
Replies: 49
Views: 4,605
Posted By chorlton

Thanks. You may have noticed I was not asking for...

Thanks. You may have noticed I was not asking for help so much as pointing out the possibility that differential tension on same side spokes is a thing.



Still waiting for the correction.
Forum: Bicycle Mechanics
01-28-18, 05:46 PM
Replies: 49
Views: 4,605
Posted By chorlton

Not at all. As previously suggested I did not...

Not at all. As previously suggested I did not expect anything less from you.



I posted a suggestion. You did not correct it. You immediately dived in and tried to rubbish it using Science...
Forum: Bicycle Mechanics
01-28-18, 04:57 PM
Replies: 49
Views: 4,605
Posted By chorlton

Sure... Pile it on. Ignoring my wrong assumptions...

Sure... Pile it on. Ignoring my wrong assumptions as misinterpreted by FBinNY... See what I did there?

My 'number', according to you, is right. However I appear to have messed up the units by...
Forum: Bicycle Mechanics
01-28-18, 04:37 PM
Replies: 49
Views: 4,605
Posted By chorlton

Person States A). When person is asked about A)...

Person States A). When person is asked about A) person talks about thing not associated with A). Conclusion... Person does not know about A).

Of course I should be grateful for the electricity you...
Forum: Bicycle Mechanics
01-28-18, 04:12 PM
Replies: 49
Views: 4,605
Posted By chorlton

One Hook. Two big fish. I am quite surprised how...

One Hook. Two big fish. I am quite surprised how fast those big boys hit the bait.... NOT.

I almost get 1) in as much as it adds or subtracts from the axial angle although you seem to suggest the...
Forum: Bicycle Mechanics
01-28-18, 03:43 PM
Replies: 49
Views: 4,605
Posted By chorlton

I see the big boys are out. It is three...

I see the big boys are out.

It is three cross.

However you are quite correct that I have not as yet included the effects of interlacing. No doubt you know how that will affect things which...
Forum: Bicycle Mechanics
01-28-18, 03:30 PM
Replies: 49
Views: 4,605
Posted By chorlton

Spoke Tension. Same Side.

I keep coming back to my program for doing this stuff... because I can. Most recently I have added the ability, perhaps wasted, to deal with butted/non-butted spokes and work out the relative...
Forum: Bicycle Mechanics
11-23-17, 10:22 AM
Replies: 16
Views: 1,413
Posted By chorlton

You are probably right. As a 'hobby'...

You are probably right.

As a 'hobby' mechanic I take old lugged steel bikes and in effect completely rebuild them, down to bare frame, forks off and a bag of other bits, and back up again, up to...
Forum: Bicycle Mechanics
11-21-17, 02:13 PM
Replies: 22
Views: 3,141
Posted By chorlton

Thanks Bob.

Thanks Bob.
Forum: Bicycle Mechanics
11-21-17, 01:42 PM
Replies: 22
Views: 3,141
Posted By chorlton

It would seem that Velo has zero interest in...

It would seem that Velo has zero interest in fixing the manufacturing defects in their products...





Good to know they can send you some more defective bits though.


[/FONT][/COLOR]
Forum: Bicycle Mechanics
11-21-17, 12:48 PM
Replies: 16
Views: 1,413
Posted By chorlton

Call for Comments...

Perhaps I should not ask but...

https://twitter.com/wefail/status/932703078729617408
Veterinary student screamed 'my brakes have gone' as she careered to her death at 40mph down one of Britain's...
Forum: Bicycle Mechanics
11-20-17, 04:58 PM
Replies: 22
Views: 3,141
Posted By chorlton

https://velo-orange.com/pages/contact-us ...

https://velo-orange.com/pages/contact-us

Done... Perhaps others can chip in and make mine better.
Forum: Bicycle Mechanics
11-20-17, 03:48 PM
Replies: 22
Views: 3,141
Posted By chorlton

Looks like there is a 'cage' which is supposed to...

Looks like there is a 'cage' which is supposed to stop the nut from turning but the 'cage' is not tight against the nut. Even if you were to bend it to hold the nut it would probably bend back again....
Forum: Bicycle Mechanics
11-20-17, 06:59 AM
Replies: 127
Views: 14,416
Posted By chorlton

rofl

rofl
Forum: Bicycle Mechanics
11-20-17, 06:16 AM
Replies: 22
Views: 1,948
Posted By chorlton

http://bicycletimesmag.com/userfiles/venturi-1.jpg...

http://bicycletimesmag.com/userfiles/venturi-1.jpg

Nice bike... Drool.

Something, violently, 'kicks' and then it is OK again. Just to say I have no idea but in my mind if it is sufficient to...
Forum: Bicycle Mechanics
11-20-17, 05:02 AM
Replies: 13
Views: 1,905
Posted By chorlton

Bike shop sounds good. It is not complicated when...

Bike shop sounds good. It is not complicated when you get down to it but the right tools to do the job will cost a bit. Given you appear to be in a buying mood then you need a 14mm/15mm socket to...
Forum: Bicycle Mechanics
11-20-17, 04:54 AM
Replies: 127
Views: 14,416
Posted By chorlton

Basically, if I read it correctly, the Author...

Basically, if I read it correctly, the Author built their own Tribometer because the lab one was being used somewhere else. In itself impressive, engineering, sensor and error analysis, stuff but...
Forum: Bicycle Mechanics
11-20-17, 01:32 AM
Replies: 13
Views: 1,905
Posted By chorlton

Agree that it looks like a cheap plastic press...

Agree that it looks like a cheap plastic press fit cover. They normally fall out of their own accord but if you look at the edge then it appears to have been glued in. The yellow/brown stuff looks...
Forum: Bicycle Mechanics
11-12-17, 01:38 AM
Replies: 10
Views: 940
Posted By chorlton

Look at what they have done with the rear brake...

Look at what they have done with the rear brake cable running along the top tube. I think similar is meant to happen on the down tube for the gear cables.
Forum: Bicycle Mechanics
11-10-17, 03:15 PM
Replies: 11
Views: 3,151
Posted By chorlton

https://www.bikeforums.net/19720597-post26.html

https://www.bikeforums.net/19720597-post26.html
Forum: Bicycle Mechanics
11-10-17, 10:25 AM
Replies: 72
Views: 8,335
Posted By chorlton

Entering the danger zone... This bloke also gets...

Entering the danger zone... This bloke also gets it wrong on TED.

https://www.youtube.com/watch?v=2Y4mbT3ozcA

http://bicycle.tudelft.nl/schwab/Publications/schwab2013rider.pdf

Of course I...
Forum: Bicycle Mechanics
11-10-17, 09:33 AM
Replies: 20
Views: 6,635
Posted By chorlton

FTW!!!1!!! Just don't ask any questions on...

FTW!!!1!!!

Just don't ask any questions on the forum when yours go wrong.
:crash:
Forum: Bicycle Mechanics
11-10-17, 09:25 AM
Replies: 20
Views: 6,635
Posted By chorlton

Just in case I missed that, and I initially did....

Just in case I missed that, and I initially did. What you are saying is the lump of metal in my brake pad was an accumulation of metal scraped off the rim by what may have originally been a bit of...
Forum: Bicycle Mechanics
11-10-17, 05:55 AM
Replies: 20
Views: 6,635
Posted By chorlton

My immediate thought as well. Recently my rear...

My immediate thought as well. Recently my rear brakes on aluminium rims started making horrible noises and it turned out the right pad had a lump of shiny metal embedded in it. Naturally I was/am...
Forum: Bicycle Mechanics
11-09-17, 08:23 AM
Replies: 50
Views: 5,165
Posted By chorlton

Ah.. Best will be a 1990 Raleigh Pioneer with an...

Ah.. Best will be a 1990 Raleigh Pioneer with an 18-23 steel frame and 28mm tyres pumped up to 90/100PSI. Marginally responsive but constrained by gravity and the rider. Good for going down the shop...
Forum: Bicycle Mechanics
11-09-17, 08:04 AM
Replies: 32
Views: 6,775
Posted By chorlton

"Pictures or it did not happen." Otherwise excuse...

"Pictures or it did not happen." Otherwise excuse me whilst I ramble.

Obviously the problem exists but as with others I've never experienced similar in the case of a number of old bikes, 1985-1990...
Forum: Bicycle Mechanics
11-06-17, 11:30 AM
Replies: 18
Views: 1,284
Posted By chorlton

Seriously... put it back together with the new...

Seriously... put it back together with the new cone and see if you can get it to run smoothly. You will not know until you try. Otherwise looking back at your pictures there is an obvious track in...
Forum: Bicycle Mechanics
11-05-17, 10:42 AM
Replies: 23
Views: 1,648
Posted By chorlton

Presumably that will be the 95% of cyclists that...

Presumably that will be the 95% of cyclists that can afford such frippery and buy Shimano. Just saying.
Forum: Bicycle Mechanics
11-05-17, 10:33 AM
Replies: 10
Views: 1,009
Posted By chorlton

Try using the same spoke length calculator but...

Try using the same spoke length calculator but look at what happens when you change the flange hole spacing diameter from 60mm to 45mm. Make extra sure you are using measurements appropriate for the...
Forum: Bicycle Mechanics
11-05-17, 08:43 AM
Replies: 27
Views: 7,157
Posted By chorlton

I would not wish to make anything up so I'll go...

I would not wish to make anything up so I'll go with because if you cannot adjust the bearings such that there is no slop and they run smoothly then something is wrong. Otherwise there is a feelgood...
Forum: Bicycle Mechanics
11-05-17, 06:53 AM
Replies: 14
Views: 4,985
Posted By chorlton

You might also consider a Boot Lace Ferrule. ...

You might also consider a Boot Lace Ferrule.

...
Forum: Bicycle Mechanics
11-03-17, 10:00 AM
Replies: 54
Views: 13,727
Posted By chorlton

Based on what others have suggested... Are you...

Based on what others have suggested... Are you fitting the tubes to the same rims with the same tyres. If it is not the rims or rim tapes then is it possible that you have in some way nicked the...
Forum: Bicycle Mechanics
11-03-17, 06:46 AM
Replies: 71
Views: 8,744
Posted By chorlton

I think I am going to regret asking that one but...

I think I am going to regret asking that one but your explanation sounds good to me. Now... about greasing the spindle before putting the arm on?
Forum: Bicycle Mechanics
11-03-17, 06:10 AM
Replies: 71
Views: 8,744
Posted By chorlton

I think your sample might be biased but it is or...

I think your sample might be biased but it is or may be interesting that there is a bias towards left side cranks.
Forum: Bicycle Mechanics
11-03-17, 05:55 AM
Replies: 3
Views: 437
Posted By chorlton

No.. Trade secrets and other stuff. I could write...

No.. Trade secrets and other stuff. I could write you one but you would have to pay me money. Otherwise it has to be scrum agile, docker and cloud based.. preferably not using azure. Hadoop could be...
Forum: Bicycle Mechanics
11-03-17, 05:34 AM
Replies: 54
Views: 13,727
Posted By chorlton

Might/Will be stating the obvious but have you...

Might/Will be stating the obvious but have you checked the rim or rim tapes for similar dimples.. From your second picture, the right rim with the blue tape bottom of right Schwalbe logo...

...
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