Search found 24164 matches

by Jdsk
28 Mar 2024, 7:08pm
Forum: Bikes & Bits – Technical section
Topic: Tyre pressures for different width tyres using Silca
Replies: 11
Views: 664

Re: Tyre pressures for different width tyres using Silca

Miles_Turner wrote: 28 Mar 2024, 12:07pm ...
Although the published text of my paper is indeed paywalled (I'm sorry to say), for those interested there is a nearly identical preprint text here: https://www.researchgate.net/publicatio ... _vibration
...
Thanks

Very interesting.

Jonathan
by Jdsk
28 Mar 2024, 7:06pm
Forum: Does anyone know … ?
Topic: GPX devices...Garmin alternative
Replies: 29
Views: 1060

Re: GPX devices...Garmin alternative

Milfred Cubicle wrote: 28 Mar 2024, 4:55pm ...
Basically I'd like to be able to:

1. Find a nice gpx file online and save it to my phone.
2. Ping it from my phone to the device, without it asking me which of several device files it shoukd go into.
3. Ride my bike, and it gives me a little chirp and an arrow 100m before a turn.
4. 8-12h battery, ideally with the facility to charge it from a poweebank without any huge docking station.
How do the the non-Garmin devices suggested upthread stack up to that spec?

And would you now consider a new (or recent) Garmin that did?

Jonathan
by Jdsk
28 Mar 2024, 7:03pm
Forum: Bikes & Bits – Technical section
Topic: Dynamo carbon fork mounting options
Replies: 13
Views: 547

Re: Dynamo carbon fork mounting options

nomm wrote: 28 Mar 2024, 6:34pm ...
Please see pics of fork/mount

https://photos.app.goo.gl/G6aCsWo8S35m7jQXA
I can see two photos. The fork crown has no hole at the front and a presumably threaded hole at the rear.

But they don't show enough lower down the blades or higher up to the bars to tell if there any other options.

Jonathan
by Jdsk
28 Mar 2024, 2:24pm
Forum: Touring & Expedition
Topic: Garmin connect beta
Replies: 8
Views: 310

Re: Garmin Connect beta

Sweep wrote: 28 Mar 2024, 1:50pm Fair to assume that this only runs on Windows?
Garmin:
https://www.garmin.com/en-US/newsroom/p ... xperience/

DC Rainmaker:
https://www.dcrainmaker.com/2024/01/gar ... rough.html

Jonathan
by Jdsk
28 Mar 2024, 11:52am
Forum: Bikes & Bits – Technical section
Topic: Tips for fitting tyres to WH-6800 rims?
Replies: 5
Views: 209

Re: Tips for fitting tyres to WH-6800 rims?

You've found Colin's video, so you know about dropping it into the well.

Is that the general purpose VAR lever? I now have the Kool Stop rim lever and a Tyre Glider, as discussed here:
viewtopic.php?t=159972

Jonathan
by Jdsk
28 Mar 2024, 11:40am
Forum: Bikes & Bits – Technical section
Topic: issue with new inner ring on ultegra hollowtech
Replies: 10
Views: 530

Re: issue with new inner ring on ultegra hollowtech

Cyclothesist wrote: 28 Mar 2024, 11:19am ...
A dremmel sounds like a v useful tool. I'll add one to my wish list.
...
Mine's a genuine Dremel. It's cordless and I find that makes it much more convenient. Spare parts are available.

Similar tools are available in Aldi and Lidl special offers. I haven't tested either, but most of their tools are good.

Jonathan
by Jdsk
28 Mar 2024, 11:37am
Forum: The Tea Shop
Topic: Take These (Supply) Chains from My Heart
Replies: 810
Views: 44075

Re: Take These (Supply) Chains from My Heart

"Brexit costs Scotland up to £100 million-a-year in lost salmon exports":
https://www.salmonscotland.co.uk/news/b ... on-exports
Scottish salmon is the UK’s largest food export, but farming companies have faced increased red tape and costs triggered by the departure from the EU in January 2020.

Jonathan
by Jdsk
28 Mar 2024, 11:21am
Forum: Campaigning & Public Policy
Topic: Over-powerful LED lights
Replies: 101
Views: 6731

Re: Over-powerful LED lights

axel_knutt wrote: 28 Mar 2024, 11:13am ...
4. I didn't know that the UN had a finger in the vehicle regulation pie, considering that we left the EU so that we don't have to be told what to do by forriners, it's interesting that we're happy to be involved with them. Mr. Konstantin Glukhenkiy is the contact, I wonder if he's amenable to submissions from lay road users.
https://unece.org/introduction-24
https://wiki.unece.org/display/trans/Ho ... egulations
https://en.wikipedia.org/wiki/United_Na ... for_Europe

and, from upthread:
Jdsk wrote: 28 Feb 2024, 3:31pm The regulations (which are UN ECE), history and dates of change for selective yellow headlights:
https://en.wikipedia.org/wiki/Selective_yellow
Jonathan
by Jdsk
28 Mar 2024, 11:15am
Forum: Campaigning & Public Policy
Topic: Over-powerful LED lights
Replies: 101
Views: 6731

Re: Over-powerful LED lights

axel_knutt wrote: 28 Mar 2024, 11:13am 1. I wonder whether police stats are sufficiently detailed to reveal an effect that may be small in terms of all-cause road deaths but quite large in terms of deaths related to headlamp design. I also think that any advantage of better visibility will have been consumed in the form of faster driving rather than reduced accident rate, and that that possibility won't have been researched.
...
I don't think that they are sufficiently detailed.

Jonathan
by Jdsk
28 Mar 2024, 10:29am
Forum: Does anyone know … ?
Topic: Wiggle... clearance sale without refunds?
Replies: 8
Views: 577

Re: Wiggle... clearance sale without refunds?

That's why I asked how you paid. ; - )

Jonathan
by Jdsk
28 Mar 2024, 10:23am
Forum: Campaigning & Public Policy
Topic: Over-powerful LED lights
Replies: 101
Views: 6731

Re: Over-powerful LED lights

Traction_man wrote: 28 Mar 2024, 7:41am just had this response to the petition:
...
Thanks for sharing that.

First thoughts:

1 I don't think that I knew that were maximum intensities in the regulations already. Have we discussed that?

2 It nearly falls into the trap of equating absence of evidence with evidence of absence (of effect), but then recovers with:

3 The plan for future independent research. This may be the route to improvement and I've written to Cycling UK.

Jonathan

https://petition.parliament.uk/petitions/653793
by Jdsk
28 Mar 2024, 10:17am
Forum: Bikes & Bits – Technical section
Topic: M2.5 bolt
Replies: 30
Views: 1056

Re: M2.5 bolt

Well done, and thanks for adding the outcome.

Jonathan
by Jdsk
27 Mar 2024, 10:19pm
Forum: Touring & Expedition
Topic: touring wheels upgrade
Replies: 74
Views: 2843

Re: touring wheels upgrade

roubaixtuesday wrote: 25 Mar 2024, 7:13pm ...
I agree it's all but irrelevant for touring, but it is good to get the facts straight IMO
Yes, it's worth getting the physics right first. And the language, including distinguishing between mass, weight and the relevant moment for rotation. Then it's possible to be sure that everyone is talking about the same things.

The size of effect may not be particularly important in particular settings. And if it isn't the physics will explain why.

Jonathan

PS: I also suspect that there are some pre-Newtonian concepts of momentum lurking in the undergrowth.
by Jdsk
27 Mar 2024, 8:51pm
Forum: The Tea Shop
Topic: Take These (Supply) Chains from My Heart
Replies: 810
Views: 44075

Re: Take These (Supply) Chains from My Heart

Jdsk wrote: 6 Mar 2024, 11:19am
al_yrpal wrote: 6 Mar 2024, 11:15am... and thus our food hygene people have to be very careful what is imported too.
"Defra confirms funding withdrawal for Dover illegal meat checks":
https://www.fwi.co.uk/news/eu-referendu ... s-at-dover
Defra Secretary Steve Barclay was asked to explain the Department's stance on funding checks for illegal meat imports when he appeared in front of the Environment, Food and Rural Affairs Committee on Tuesday.
Prior to the meeting, EFRA published a damning letter to it from Lucy Manzano, head of Dover port health & public protection, which suggested Defra had misled the committee of MPs in its response in February to questions on illegal meat import checks at the port and the decision to move legal customs checks to a new inland site from April.

https://www.npa-uk.org.uk/Barclay_quest ... hecks.html
https://committees.parliament.uk/commit ... committee/

Jonathan
by Jdsk
27 Mar 2024, 8:30pm
Forum: The Tea Shop
Topic: What Has Made You Laugh Today ?
Replies: 1471
Views: 96632

Re: What Has Made You Laugh Today ?

colin54 wrote: 27 Mar 2024, 7:52pm
Jdsk wrote: 27 Mar 2024, 7:19pm Do you know the Zen... story?
I do; perhaps Pirsig's friend would have been less upset with a gold plated shim, my current choice for my British Eagle's drive-side bb cup.
P1170832.JPG
Is it an in-joke referring to that? Because the difference in views wouldn't work with a product designed to be used for the purpose for which it is used...

Jonathan