David Southern's Friends

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  • Steven Orr
  • MARK FERGUSON (SPARTACUS)
  • Richard
  • hozozco
  • Frank Spartalis
  • heather
  • Roger ...
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David Southern's Groups

David Southern's Discussions

Early British Bikes

Started this discussion. Last reply by David Arnold Nov 19, 2012. 10 Replies

Some images of early British wheels and bikes.From 0:02:00 and 0:08:25 in this. Continue

Tags: CarryOn, humour, rim, wheel, British

Who was out today?

Started this discussion. Last reply by Lee-Anne Aug 25, 2012. 18 Replies

I did manage a quick trip to the shops on the bike this morning, without getting either wet or blown away.  After that, I had to drive my wife around a bit (distance beyond her capabilities on a…Continue

Tags: rain, wind

Electronic Shifters

Started this discussion. Last reply by Terry C Jul 15, 2012. 52 Replies

I have noted on a number of occasions while watching the TDF on SBS that the commentators have discussed the "reliabilty" of electronic shifters on bikes with an obvious on-road failure.I wonder what…Continue

Tags: reliability, shifter, electronic

Is Cycling Dangerous?

Started this discussion. Last reply by Doddsy Jun 19, 2012. 30 Replies

Cycling is often depicted as a"dangerous" activity.  But is it true?I would argue that it is motor-vehicle drivers that are dangerous, to cyclists, pedestrians, their passengers, other motorists, and…Continue

 

David Southern's Page

Latest Activity

David Southern replied to pete davis's discussion Motorbike riding on pedestrian / cycle path
"Currently there are two petrol-engine kits that I know of on the market that are street-legal in Australia.  There is a Sachs rear-hub/wheel assembly kit at less than 200w, and Rock Solid Engines (formerly of Welland SA, now of Brisbane) do a…"
10 hours ago
David Southern replied to A Bishop's discussion Google street view. Friday afternoon story.
"I would like some street view images from roads/routes/paths that are accessible by bike or foot, but not cars.  Also some street view stuff from trains and trams. I also hope that a new set of images will not cause the deletion of some…"
yesterday
David Southern replied to A Bishop's discussion Google street view. Friday afternoon story.
"Doesn't show on the current street view."
yesterday
David Southern replied to VP's discussion What's your favourite climb easily accessible from the CBD?
"MTB climb - Coach Rd Skye to Ashton."
Thursday
David Southern replied to VP's discussion What's your favourite climb easily accessible from the CBD?
"Anzac Hwy actually climbs at about 1:100 - not steep for a bike, but a steady pull for a tram or train on the lines either side. Cross Rd from Anzac Hwy to Glen Osmond Rd - uphill all the way, gentle at first, but getting steeper.  The line of…"
Thursday
David Southern replied to daniel f's discussion The Girl who tweeted... who'll tweet no more.
"Shoot pheasants, or shoot pheasants?"
Wednesday
David Southern replied to Michael Roelink's discussion What's this Zebra crossing thing?
"I wonder why it took so long, especially after the kerb protuberances were installed.  This has been part of a major pedestrian route since the door between the walkway beside the Pirie St Methodist Church meeting rooms and the laneway of Stow…"
Wednesday
David Southern replied to Vince's discussion TDU 2014 - Stage 6
"You cruel, cruel man!"
Tuesday
David Southern replied to Stig of The Dump's discussion Lost pedal cap / sell me one
"Be thankful that debris is not swept off the road very often."
Monday
David Southern replied to Gus K's discussion Close inspection of your bike
"Annoying clunking sound in the BSA when pedalling under load.  Turns out that it is the pedal bearings in both pedals shot. Unlikely to lead to catastrophic failure (yet), so put up with it so as to get maximum use out of the old pedals. As…"
Monday
David Southern replied to Jon M's discussion Loopwheels
"Wheels with integral suspension (although in the hub) were invented before frame suspension was developed for motor-cycles.  They went the way of the dodo once frame suspension had proved itself.  I suppose that one of the critical issues…"
May 18
David Southern replied to Brett dracup's discussion Down Monty with a bit of a skid
"The line of that skid would suggest that the corner was approached too far to the right.  An approach as near to the left as reasonably possible would have allowed an easier line with greater radius through the corner.  It may sound…"
May 18
David Southern replied to Colin Maher's discussion Help DPTI prioritise arterial road cycling improvements
"Darley Rd at least can be avoided by coming off the river at Pitman Rd, then Cadell and McKay which will bring you to the corner of NE & Sudholz Rds.  Reasonable quality surface, and longish runs with low traffic, a route not suitable for…"
May 15
David Southern replied to David Hume's discussion A generator powering rechargeable batteries/USB - interesting concept.
"Problem in using an "ordinary" rim or tyre or hub generator is that some fancy electronics are required to convert the AC output to DC and provide voltage and/or current regulation on the output.  This is required even for battery…"
May 14
David Southern replied to Colin Maher's discussion Help DPTI prioritise arterial road cycling improvements
"That's still 50 too many.  Any enforcement/prosecution follow up proposed?"
May 14
David Southern replied to wujim's discussion Foldable, 100% waterproof jacket recommendations
"One could also try lightweight boaties' spray jackets.  (Lightweight jackets for boaties, not jackets for lightweight boaties.)"
May 14

Profile Information

What bikes do you ride?
BSA frame (1968) set up as 18 speed, 26x1 3/8.
My elder son's Mongoose Dynametric 325 700C (1992) refurbished for my use.
When do you ride?
Weekends, Other
..perhaps some more information about yourself for your profile page
Prefer bike, or bike/train over car, if load to be carried and time constraints permit.
My wife (we have been married 38 years) only learned to ride a bike after we were married, although much of our courting was in the presence of my bike.

David Southern's Photos

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David Southern's Blog

The Ebike, at last.

Posted on April 26, 2013 at 22:23 7 Comments

For some years, I had been investigating buying or building an Ebike as a replacement for for most of my car-as-driver-only journeys from the city to Upper Sturt, a sort-of "reverse commute".  It was in doing this research that I first stumbled upon AC.

My investigations revealed that for my purposes, a mid-motor, chainwheel drive arrangement would be best, as this makes the bike gears available to the motor, unlike hub motors of any sort, and, incidentally, unlike all petrol motor…

Continue

Gitane: First ride.

Posted on June 15, 2012 at 23:06 2 Comments

I took the Gitane out for a ride today, the first (apart from "setting up") since I got it.  From near Hadleigh Rise, Upper Sturt, into Stirling, and return, via Sturt Valley Road.

The bike is now set up as 3x7 (48/38/28, 11-28) instead of the original 2x6.  The triple came about because the chainwheel-side crank on the double was bent, so a new crankset was needed anyway.  A headstem with a…

Continue

When did you last change the gear cable?

Posted on May 5, 2012 at 21:08 9 Comments

I got caught in the very heavy rain last Tuesday, and the BSA got saturated (not to mention the rider).  However, it seemed to have dried out fairly well.

But this morning, going to and from the Community Bike Workshop at Plympton, I was having trouble getting the outside sprocket (high gear) on the cassette.  It would not change the final step unless I backed off, went down one, and then changed two at once.

Oiling and cleaning the chain made a slight improvement, but still…

Continue

Gitane Mixte

Posted on March 18, 2012 at 14:39 9 Comments

I was just heading out on the BSA yesterday morning to watch my son's F-grade cricket final at Brooklyn Park, when I passed the parked ute of the local secondhand/junk/art dealer.  In the tray was a blue Gitane bike with the back wheel off.  I asked how much, and he said $20.  "You're on," I said, and paid my money, left the BSA in his care, leaning against the street sign, and carried the Gitane home (50m).  Then I came back, and continued the journey.…

Continue

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