Any question answered...

Can you check the distance/duration of the individual rides?

My guess is that one phone was left running for a bit and accrued distance due to jitter being sat in a pocket/bag/whatever whilst at a cafe or back home.

Bought a set of PRO Missile Clip on aero bars cheap on here to give them a shot for a long distance set up. Want to try the bars higher up. It seems PRO don't make a riser kit for their clip ons so I'm wondering if there was an alternative, at least to try them out higher.

Profile Design have a kit like this...I assume its too much to ask that it would be somewhat universal?

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Bought a set of PRO Missile Clip on aero bars

Well, there's your trouble. Pro Missiles are a PITA for various reasons depending on version

It seems PRO don't make a riser kit

They make a kit for the Missile AL Clip which looks like the Profile ones, and they make spacer kits for the Missile Evo Clip which look like the spacer packs for integrated tribars because that's what they are

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Well that second set should be it. Quick scout about reveals very low availability if any in the UK and super expense so...

I bought some Profile Design bars and some riser bits.

Whoever let me have a credit card is an absolute loon.

super expense

At least with clip-ons you don't have to find £200 to change the angle 🙂

For low impact cardio exercise should I look at a rowing machine, elliptical trainer or an assault/air bike?

Are average speed checks on motorways bogus? I haven’t been able to see anything set up to measure entry and exit.

They're the smaller yellow cameras over the lanes or off to the side of the road on a yellow gantry, multiple cameras as it is one per lane. With smart motorways they're generally adding them to the back of the overhead gantries, so you don't even see them.

It's all done with the help of ANPR. So they know when your car passed one set of cameras and when they passed another set and how far they are apart.

This link has photos: https://www.carbuyer.co.uk/tips-and-advice/160228/average-speed-cameras-how-do-they-work

Well that second set should be it. Quick scout about reveals very low availability if any in the UK and super expense so...
I bought some Profile Design bars and some riser bits.
Whoever let me have a credit card is an absolute loon.

If it helps, they look nearly idential to the Zipp vuka riser kit:
https://www.tredz.co.uk/.Zipp-Vuka-Clip-Riser-Kit_234085.htm

Someone asked the Met an FoI question in 2019 about the cameras on the M4 J1-3. They had issued 30,000 tickets in 2 years.

Average speed cameras May 2017 to May 2019 Offence speed Totals
Junction 3 to 1 W/B - (first NIP shown August 2017) 40mph 15146
Junction 3 to 1 E/B - (first NIP shown August 2017) 40mph 8374
Junction 3 to 1 E/B - (first NIP shown July 2017) 60mph 7071

https://www.met.police.uk/foi-ai/metropolitan-police/disclosure-2019/june/speed-cameras-on-the-m4-in-both-directions/

There's definitely loads of cameras on the smart motorway sections. I'm not so sure about the long sections of roadworks (for instance that big stretch on the M1 around J13), have never noticed any.

On roadworks they're on yellow poles on the verge as per the big photo on Greenbank's link. Maybe not obvious if you're not looking for them.

Ah yes, a quick look at Streetview shows them. Guess there's normally a load of lorries in the left hand lane so not that visible.
https://goo.gl/maps/qjVFDrGybCgoT8pbA

Looking at the gas holders around Kings Cross they all have two separate dates for erected and telescoped. What's the difference between the two, the telescoped date is often 20 years or so after the erected date?

I think early gas holders had a fixed storage container. Basically an upside down glass in a bowel of water. As the space under the glass has gas pumped in the glass rises. This requires a hole in the ground as deep as your glass is high when full.

Telescoping gas holders have a series of rings that fit inside each other so your gas holder can go a lot higher than the depth of your hole.

Sounds like they got upgraded.

At a guess it's when they were originally built as rigid types (that didn't expand or contract) and then converted at the later date to telescoping types.

See: https://en.wikipedia.org/wiki/Gas_holder

From memory they were built by the same engineer as the Aswan dam and are grade 1 listed. I used to live in Stanley buildings and were the view as I opened the door.

Oh gad.

What water-repellent pants do people use that work well enough for occasional showers while commuting on the bike but still look like "normal" pants pretty much? A little functional / outdoor-y is ok, but definitely not full blown weather gear / looking like a tool.

Fjällräven's waxed pants worked nicely in this regard, but I can't stomach their ever increasing prices and decreasing quality, frankly.

Tena

Swrve?

Springs! Where can I get them from?
I have a nice brass bell but the spring ringer has bust.

Don’t have a source that comes to mind immediately, but I vastly prefer the Riten style as it works to warn people without the piercing ring of the single hammer does.

Cheers and @Greenbank I suspected it was something like that but couldn't find anything definitive to back it up.

You should try out a Japanese wooden bell. Makes a satisfying knocking sound, very woody.