A Gentlemans Rudge

[biggs682]

10.7 commuting miles today with no issues , even managed a couple of cycle path scalps .

Even had time to go and find a gate .

 

[simongt]

Tyre and tube now replaced

Ah, but did you go full period and seek out tubes with Wood's valves - ?

 

[biggs682]

Ah, but did you go full period and seek out tubes with Wood's valves - ?

No used std 700c's

 

[simongt]

Wise; there's a very good reason why it's difficult to get Wood's valves now - !

 

[biggs682]

Just gone in the garage to do some work on my Carlton and guess what the rear tyre is flat again , so had to sort that out instead

The cycle path's i use are strewn with glass and hedge trimmings so hardly surprising

 

[woodbutcher]

Just gone in the garage to do some work on my Carlton and guess what the rear tyre is flat again , so had to sort that out instead

The cycle path's i use are strewn with glass and hedge trimmings so hardly surprising

Sounds like a rough neighbourhood

 

[biggs682]

Third day of commuting

And the third p fairy visit no sharp edges on wheel no signs of damage to the tyre strange indentation on tube around the leaking area so replaced tube and refitted so will see

 

[mjr]

Wise; there's a very good reason why it's difficult to get Wood's valves now - !

They're fairly easy to find on this side of the fens, which is good as they're brilliant.

 

[biggs682]

They're fairly easy to find on this side of the fens, which is good as they're brilliant.

Must admit my local bike shop stocks them as well , but i bet Halfords and many other bike shops wouldn't know what they are

 

[mjr]

Must admit my local bike shop stocks them as well , but i bet Halfords and many other bike shops wouldn't know what they are

Half odds don't even stock any 26x1⅜ here, despite Bobbin and others still making new bikes that use them. Even other car spares chains like Wilco Fast Fit and the now- closed Motor World stocked them.

 

[simongt]

They're fairly easy to find on this side of the fens, which is good as they're brilliant.

As I recall, the last time I used Wood's valves, they were 'one piece' as oppose to the original types where you had to periodically replace the wee length of rubber covering the inner valve hole.

 

[mjr]

As I recall, the last time I used Wood's valves, they were 'one piece' as oppose to the original types where you had to periodically replace the wee length of rubber covering the inner valve hole.

Yes, most Woods valves use a captive ball bearing now, with air pressure holding it tight against its cups until air pressure gets high enough to open it, like this diagram:

That flange on the neck pushes against a rubber washer inside the top of the collar which is normally screwed down tight unless you want to deflate it:

(pic by SCEhardt, CC-by-SA)

 

[biggs682]

Yes, most Woods valves use a captive ball bearing now, with air pressure holding it tight against its cups until air pressure gets high enough to open it, like this diagram:
View attachment 381404
That flange on the neck pushes against a rubber washer inside the top of the collar which is normally screwed down tight unless you want to deflate it:
View attachment 381405
(pic by SCEhardt, CC-by-SA)

They original ones fitted had the rubber tail but that had long persihsed

 

[raleighnut]

They original ones fitted had the rubber tail but that had long persihsed

I think all 'Woods' valves had the 'ball-bearing' and rubber ring and the tube was like a 2nd line of defence/bodge for when the rubber 'O' ring failed, I certainly remember 'Woods' valves without the tube (although it may have 'shot off' and been inside the inner tube)

 

[mjr]

I think all 'Woods' valves had the 'ball-bearing' and rubber ring and the tube was like a 2nd line of defence/bodge for when the rubber 'O' ring failed, I certainly remember 'Woods' valves without the tube (although it may have 'shot off' and been inside the inner tube)

Here's a diagram of how the classic rubber tube design worked, from the same source:

As you can see, it has no balls and the rubber is primary prevention of accidental emissions.