Standards (or lack thereof)

Arthur Clune said:

While pottering back from Sainsburys today [1] I had this thought:

How many actual real standards are there in the bike world? Not "standards" but actual, universal
standards. So I thought and came up with:

* Pedal threads

and that was it.

Any more for any more?

The need for 2 wheels 🙂

hth

--
Dnc

In article <[email hidden]>, Doesnotcompute
<[email hidden]> writes

Quoted message said:

Arthur Clune said:

While pottering back from Sainsburys today [1] I had this thought:

How many actual real standards are there in the bike world? Not "standards" but actual, universal
standards. So I thought and came up with:

* Pedal threads

and that was it.

Any more for any more?

The need for 2 wheels 🙂

Having just sold the uni which I never managed to learn to ride, I can confirm this ;-)

ttfn

Martin

--
'Ambition is a poor excuse for not having enough sense to be lazy.' Steven Wright

Martin Harlow [email hidden]

In article <[email hidden]>, one of infinite monkeys at the keyboard of "Arthur

Clune said:

How many actual real standards are there in the bike world? Not "standards" but actual, universal
standards. So I thought and came up with:

* Pedal threads

Hmmm ...

Well, I have a bike bought in Italy, from a manufacturer not known in the UK. Yet I can walk into my
LBS and buy replacement parts, without even having looked carefully at what they're replacing. A new
gear shift cable; new inner tube; lights; waterbottle, to name a few of my latest acquisitions.

That seems to indicate a working standard or two.

--
Axis of Evil: Whose economy needs ever more wars? Arms Exports $bn: USA 14.2, UK 5.1, vs France 1.5,
Germany 0.8 (The Economist, July 2002)

Arthur Clune said:

While pottering back from Sainsburys today [1] I had this thought:

How many actual real standards are there in the bike world? Not "standards" but actual, universal
standards. So I thought and came up with:

* Pedal threads

and that was it.

Any more for any more?

To keep it reasonable, maybe we should restrict it to bikes made in the last 20 years or so.

Arthur

[1] Today eqn: 30C + 30kg of shopping in a trailer = sweaty cyclist

Disc brake mountings (ignoring people like Shimano) most use the ISO five bolt fixing

Headsets and steerer tubes.

9 speed shifting

Seatposts

On Sun, 10 Aug 2003 19:31:14 +0100, Scrumpy Joe did issue forth:

Quoted message said:

Headsets and steerer tubes.

What? 1", 1.125", 1.25" and 1.5"?

Quoted message said:

9 speed shifting

And 7 speed/8 speed on some bikes. And 10 speed on posh roadbikes.

Quoted message said:

Seatposts

How many different sizes?

Huw "Standards are great. There's so many to choose from" Pritchard

On Sun, 10 Aug 2003 17:38:33 +0000, Arthur Clune did issue forth:

Quoted message said:

How many actual real standards are there in the bike world? Not "standards" but actual, universal
standards. So I thought and came up with:

* Pedal threads

Dropout spacing (front, anyway)

Saddle rail spacing

Huw "Blimey, this is tough, isn't it?" Pritchard

Huw Pritchard said:

On Sun, 10 Aug 2003 17:38:33 +0000, Arthur Clune did issue forth:

Quoted message said:

How many actual real standards are there in the bike world? Not "standards" but actual,
universal standards. So I thought and came up with:

* Pedal threads

Dropout spacing (front, anyway)

Saddle rail spacing

Excepting some Brookes (I think, maybe they've stopped that - do they not have some models with
odd rails?)

Valves, or at least there's no variation beyond teh three types.

Wheel shape?

regards, Ian SMith
--
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|o o|
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"Arthur Clune" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

While pottering back from Sainsburys today [1] I had this thought:

How many actual real standards are there in the bike world? Not "standards" but actual, universal
standards. So I thought and came up with:

* Pedal threads

and that was it.

I've just had the cranks on my French tandem tapped out from 14mm to
9/16"...!

The thread went: Arthur Clune:

Quoted message said:

Quoted message said:

Quoted message said:

How many actual real standards are there in the bike world?

Doesnotcompute:

Quoted message said:

Quoted message said:

The need for 2 wheels 🙂

Martin Harlow:

Quoted message said:

Having just sold the uni which I never managed to learn to ride, I can confirm this ;-)

Ah, well, that's nothing to do with the bike world. By definition, a bike must have 2 wheels. A bike
can't have one wheel, or 3, or 4, because then it would be a yike, or a trike, or a quad.

One wheel is quite sufficient for cycling, just not for biking.

--
Danny Colyer (remove safety to reply) ( juggler.netdannyOpen ↗ ) Recumbent cycle page:
speedy5.freeserve.co.ukrecumbentsOpen ↗ "He who dares not offend cannot be honest." -
Thomas Paine

Arthur Clune said:

* Pedal threads

and that was it.

Boss threads? Bottl boss threads pitche? Bottle Diametre?

--
Marc Stickers,decals,membership,cards, T shirts, signs etc for clubs and associations of all types.
jaceeprint.demon.co.ukjaceeprint.demon.co.ukOpen ↗

Martin Harlow said:

Having just sold the uni

Bugger! It's my Bday on Friday!

--
Marc Stickers,decals,membership,cards, T shirts, signs etc for clubs and associations of all types.
jaceeprint.demon.co.ukjaceeprint.demon.co.ukOpen ↗

"Arthur Clune" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

While pottering back from Sainsburys today [1] I had this thought:

How many actual real standards are there in the bike world? Not "standards" but actual, universal
standards. So I thought and came up with:

* Pedal threads

Wife's cheap [censored] bike (purchased before I had a say in such decisions) has non standard
pedal threads.

cheers, clive

Clive George said:

"Arthur Clune" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Quoted message said:

How many actual real standards are there in the bike world? Not "standards" but actual, universal
standards. So I thought and came up with:

* Pedal threads

Wife's cheap [censored] bike (purchased before I had a say in such decisions) has non standard pedal
threads.

I got as far as "round wheels", but then recalled the occasional ride I'd had on mounts where this
was *not* the case... ;-/

Pete.
--
Peter Clinch University of Dundee Tel 44 1382 660111 ext. 33637 Medical Physics, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net [email hidden]
dundee.ac.uk~pjclinchOpen ↗

Scrumpy Joe said:

Disc brake mountings (ignoring people like Shimano) most use the ISO five bolt fixing

The International Standard for disc brakes calls for six bolts...

Dave Larrington - legslarry.beerdrinkers.co.uklegslarry.beerdrinkers.co.ukOpen ↗
===========================================================
Editor - British Human Power Club Newsletter
bhpc.org.ukbhpc.org.ukOpen ↗
===========================================================

Huw Pritchard said:

On Sun, 10 Aug 2003 19:31:14 +0100, Scrumpy Joe did issue forth:

Quoted message said:

Headsets and steerer tubes.

What? 1", 1.125", 1.25" and 1.5"?

Quoted message said:

9 speed shifting

And 7 speed/8 speed on some bikes. And 10 speed on posh roadbikes.

Quoted message said:

Seatposts

How many different sizes?

Huw "Standards are great. There's so many to choose from" Pritchard

OK there are standards within standards but differences in the number of gears aside, 9 speed kit
from one manufacturer will be compatible with 9 speed kit from another.

The difference in headset sizes reflets the different disciplines with which each is intended to be
used not a difference in standards.

Doesnotcompute responded to:

Quoted message said:

Quoted message said:

Ah, well, that's nothing to do with the bike world.

with:

Quoted message said:

but the question was "bike world" not cycling world 🙂

Ahem, yes, I believe that's the point I made :-P

--
Danny Colyer (remove safety to reply) ( juggler.netdannyOpen ↗ ) Recumbent cycle page:
speedy5.freeserve.co.ukrecumbentsOpen ↗ "He who dares not offend cannot be honest." -
Thomas Paine

Huw Pritchard <[email hidden]> wrote:

: Dropout spacing (front, anyway)

Do thru-axle MTB wheels use the same dropout spacing? I think they do, so this is a goer

: Saddle rail spacing

There was the old style 4-rail saddle type, but since I did say last twenty years I think this one
gets in as well.

Arthur

Nick Kew <[email hidden]> wrote:

: even having looked carefully at what they're replacing. A new gear shift cable;

Shimano and Campag gear cables are similar but not quite the same - if you pop a Shimano gear cable
in a Campag ergo lever, it can be a bit hard to get it out again later 🙁 (though it does work)

: new inner tube;

26 x 1/4", 26x1.25, 700x23 ? Lots of standards there

: lights;

No real standards except white at the front as far as I can see. They all fit differently, some
flash, different power etc

: waterbottle,i

Yup, true. And actually I think bottle cages are pretty interchangable so bottle boss spacing and
threads must be standard as well.

Arthur

Arthur Clune said:

How many actual real standards are there in the bike world? Not "standards" but actual, universal
standards.

......

Quoted message said:

Any more for any more?

To keep it reasonable, maybe we should restrict it to bikes made in the last 20 years or so.

Gear hanger thread

So what do I win? ;-) ...Oh no, don't tell me some mechs don't fit some frames!

Seriously though, I 'm quite happy bikes are as standardised as they are. It's impressive compared
to other products, eg. motorbikes. With a modern road bike with a British frame, I know that a
standard English BB will fit; one of two sizes of headset & forks will fit; front wheel spacing will
be 100mm, rear spacing 130mm; current brakes & gears are likely to bolt on with no problems, etc.
Not bad, really.

~PB