[hawkinspeter]

Your current tyre is a 25mm

Your current tyre is a 25mm width (700c), so you can either replace it with the same width or I’d be more inclined to go for 28mm if you can find something suitable.

There’s a huge choice of tyres and generally the really cheap ones (e.g. £10) are best avoided, but it’s easy to spend a lot of money if you go for the high-end tyres and then they might be super-lightweight and not last you very long.

Generally, commuting tyres tend to be around £20-30 and should last well and have reasonable puncture protection.

[hawkinspeter]

Or as Feynman put it:

Or as Feynman put it:

“You can know the name of a bird in all the languages of the world, but when you’re finished, you’ll know absolutely nothing whatever about the bird… So let’s look at the bird and see what it’s doing — that’s what counts. I learned very early the difference between knowing the name of something and knowing something.”

[hawkinspeter]

I’ve got the 75mm length ones

I’ve got the 75mm length ones and have had two of them break where the valve core screws in. I’ve also had problems with the plastic valve core extenders (black plastic tube thing) getting stuck and getting twisted. I suspect it’s due to my in-expert fettling techniques.

[hawkinspeter]

I fitted a pair of Conti

I fitted a pair of Conti GP5000 TLEs before Xmas (onto Prime Carbon rims) and didn’t find them a problem and yet the other day I managed to completely snap a tyre lever trying to remove a MTB tyre (tubed) from Mrs Hawkinspeter’s bike.

[hawkinspeter]

I sort of recommend MilkIt

I sort of recommend MilkIt valves – they make it easier to add/remove sealant but they’re over-priced for what they are and I somehow manage to keep breaking them (but I’ve replaced them with new MilkIt valves despite the price).

[hawkinspeter]

Thanks. I haven’t watched

Thanks. I haven’t watched that fully yet, but found this article on Jim Papadopoulos: https://www.nature.com/news/the-bicycle-problem-that-nearly-broke-mathematics-1.20281

(I usually prefer reading than watching YouTube – you can go at your own speed)

[hawkinspeter]

Give it a go yourself. You’re

Give it a go yourself. You’re unlikely to damage the wheels (unless you have a hard time getting the tyre on and resort to using a screwdriver or metal implements) and you’ll certainly learn something.

Important points to remember:

• Properly applied tubeless rim tape is essential – your wheels may already have this fitted
• If you need to fit your own rim tape, make sure that it ends up nice and flat without wrinkles and make the valve hole with something round and pointy rather than a knife
• Lubricating the tyre beads makes it easier to seat the tyre – you can use dilute washing up liquid to do this first before putting the tyre on the wheel
• Remember that the middle of the rim bed is lower (i.e. smaller diameter) than the outsides, so push the tyre bead into the middle to give a tiny bit more play when trying to mount the tyre onto the rim
• I recommend trying to seat the tyre beads without using sealant first of all as it’s a lot less messy and should give you some clue as to how airtight your setup is. If the beads bang into place without sealant, you can then deflate it and add sealant through the valve (if you’ve got a removable core and some kind of syringey thing that fits in the valve) or unseat one of the beads and pour some sealant into the tyre (typically a bit messy)
• Do it outside or somewhere that spilled sealant won’t be a problem

When everything works fine, you can seat and inflate them with a normal track pump. When you’ve got a small air leak you may need to push a lot of air quickly into the tyre to seat it and that requires something like a tubeless air tank (e.g. https://road.cc/content/buyers-guide/21-best-bike-pumps-and-co2-inflators-183431).

If you try it yourself and struggle, take it to your LBS and they’ll probably get it done in 5 minutes and make it look easy (probably by someone with bionic thumbs).

[hawkinspeter]

From my memories of those,

From my memories of those, they were mainly used to generate rust and were instructive in teaching about electrical circuits as you had to much around with the springs to get the damn things to work.

[hawkinspeter]

First, replace the dodgy wire

First, replace the dodgy wire with a new one and see if that gets things working (depending on how easy it is to get to the junction box), but if that doesn’t work, then it probably needs a new battery which isn’t cheap.

[hawkinspeter]

Rich_cb wrote:

Rich_cb wrote:

Racist.

Speciesist, maybe.

[hawkinspeter]

Here we go again, another

Here we go again, another debate about the efficacy of squirrels.

I’m going to have to use a graph to decide this one

 

[hawkinspeter]

don simon fbpe wrote:

There’s a user here that I won’t respond to on certain topics as they are ignorant as a Republican voter and aren’t backwards in coming out to demonstrate it.

Well, I’m sorry Don, but it’s just obvious that grey squirrels are superior to red squirrels.

[hawkinspeter]

hirsute wrote:

An assumption that it crashed, surely it was just parked there?

Although there’s a lot of selfish parking around Bristol, it usually doesn’t involve activating the airbags.

[hawkinspeter]

https://www.bristolpost.co.uk

https://www.bristolpost.co.uk/news/bristol-news/live-whitehall-road-crash-traffic-4862283

I once heard a really funny joke about a collapsing bridge – I still can’t get over it.

[hawkinspeter]

Looks like a chain/cassette

Looks like a chain/cassette mismatch to me.

[Author]

Replies