Search found 133 matches

by seph
11 Apr 2021, 11:36pm
Forum: For Sale - bits of bikes, etc.
Topic: Sakae Ringyo quill stem
Replies: 2
Views: 336

Re: Aztec brake pads, Sakae Ringyo quill stem

I’ll take the brake pads please. Will pm
Thanks
by seph
3 Apr 2021, 10:41pm
Forum: Campaigning & Public Policy
Topic: Humber Bridge closed to cyclists & pedestrians indefinitely
Replies: 148
Views: 4337

Re: Humber Bridge closed to cyclists & pedestrians indefinitely

I’ve used the bridge on many an audax, at all times of day or night... It is always a highlight.
Very much hope that sense is seen, soon!
by seph
25 Mar 2021, 9:59pm
Forum: Bikes & Bits – Technical section
Topic: Best wishes for Brucey
Replies: 401
Views: 24022

Re: Best wishes for Brucey

Just to add my own best wishes.
Get well soon Brucey!

Thanks to those updating this thread too
by seph
17 Mar 2021, 4:36pm
Forum: Bikes & Bits – Technical section
Topic: Why Spa advise against XD-2 for 10 speed set up?
Replies: 15
Views: 953

Re: Why Spa advise against XD-2 for 10 speed set up?

When I ran the XD cranks with 10 speed, the chain would occasionally get stuck. Usually when dropping to the small ring from middle, at the base of a hill. I suspect the (ergo)shifters, which we’re very slow and clunky, (due to friction in the cable run, which I could have sorted, but never did...) didn’t help matters. I think the cranks would have been ok with deft use of down tube levers...

Hamster, if you are selling the cranks and rings, I’d be very interested. Will PM. :D
by seph
5 Mar 2021, 3:23pm
Forum: Bikes & Bits – Technical section
Topic: Creaky cranks
Replies: 27
Views: 784

Re: Creaky cranks

Only for the symbols not the names of the units, so N but newton, W but watt, Pa but pascal.

good point! :D
by seph
5 Mar 2021, 2:19pm
Forum: Bikes & Bits – Technical section
Topic: Creaky cranks
Replies: 27
Views: 784

Re: Creaky cranks

Newton, from Isaac, so given a capital letter, same with Watt and Pascal amongst others...

No idea about the cranks though!
by seph
26 Feb 2021, 9:12pm
Forum: Bikes & Bits – Technical section
Topic: Boring McBoring's guide to shimano cantilever brakes (including all the McVersions...)
Replies: 16
Views: 1001

Re: Boring McBoring's guide to shimano cantilever brakes (including all the McVersions...)

https://en.wikipedia.org/wiki/Antoni_Gaud%C3%AD :D Quite a monument!

.. and strangely compelling. Think I’m using/ have used/still have mouldering in a box somewhere 3 or 4 from the first page..
Including those exage ones with the scalloped shape that was perfect for holding mud. :lol:

Keep going!
by seph
25 Feb 2021, 9:11pm
Forum: Bikes & Bits – Technical section
Topic: Mid-range wheels - off the shelf brands or custom built?
Replies: 28
Views: 903

Re: Mid-range wheels - off the shelf brands or custom built?

If you are thinking about going a bit further with you audax rides (and be careful here.. one minute you're wondering if you can ride a 300, the next minute you're lining up for Paris-Brest-Paris.. :D ) A dynamo hub would be worth considering. SP make the lightest, SON make the ''gold standard' and Shimano make lots!
They are all the province of the custom wheel builder though.
by seph
15 Feb 2021, 10:53pm
Forum: Lands End to John O'Groats
Topic: Record attempt scheduled
Replies: 899
Views: 64422

Re: Record attempt scheduled

Thanks for that Mr B,
I’ll post it on the Derby Merc watts app :D
by seph
25 Jan 2021, 7:44pm
Forum: Does anyone know … ?
Topic: Is this turbo trainer thing too easy?
Replies: 11
Views: 592

Re: Is this turbo trainer thing too easy?

... and resistance is futile..
by seph
24 Jan 2021, 3:27pm
Forum: Bikes & Bits – Technical section
Topic: Mudguard screws sheared off and embedded in frame
Replies: 76
Views: 2736

Re: Mudguard screws sheared off and embedded in frame

https://colwoodwheelworks.co.uk/bicycle-repair/
Vince at the above ( also in hailsham) may be able to help, or know someone who could...
by seph
5 Jan 2021, 11:04pm
Forum: Does anyone know … ?
Topic: Is this the ideal winter bike?
Replies: 18
Views: 1053

Re: Is this the ideal winter bike?

Great place to dry your gloves during the caf stop :D
by seph
17 Aug 2020, 2:02pm
Forum: Bikes & Bits – Technical section
Topic: Tandem frame flex + sturmey
Replies: 13
Views: 556

Re: Tandem frame flex + sturmey

Vince https://colwoodwheelworks.co.uk/ is a mine of information, and spares, for all things Sturmey.
Worth a try
by seph
2 Aug 2020, 10:27am
Forum: Does anyone know … ?
Topic: Steel molecules - do they get tired?
Replies: 33
Views: 910

Re: Steel molecules - do they get tired?

I agree that the terms used are not important here.
But....
...At a general sort of a level...
Metal molecules is incorrect because of the type of bonding present.

Non metals bond covalently, by sharing electrons, in materials like carbon dioxide and water. These small entities are molecules and have weak attractions for other molecules around them. (Giant covalent structures exist too, like graphite).


Metals and non metals form ionic bonds, with the metal donating electrons to the non metal. The bond consists of the electrostatic attraction between the oppositely charged ions. This can form large crystal structures, like salt (ie sodium chloride) crystals. They can be of any size, and so are not molecules

Metals have metallic bonds. The metal atoms outer electrons are lost, leaving lots of positive metal ions, and lots of delocalised electrons. The metallic bond is the attraction of these ions for the electrons in the sea of delocalised electrons. It may be a few metal ions, or billions, this is why they are not termed molecules. This type of bond gives metals their properties of flexibility, conductivity etc. (Metal structure is more complex than this, but in essence I think it’s true)

So, generally, molecules refers to small, covalently bonded (ie non metal) entities.

As I say, of no importance to the topic discussed, but