Search found 57 matches

by wjhall
14 Jul 2017, 11:00am
Forum: Bikes & Bits – Technical section
Topic: Advice on a 1970s dynamo
Replies: 12
Views: 627

Re: Advice on a 1970s dynamo

Interesting reference. It might be safer to use a 6 V battery pack, rather than a 9 V PP3, bearing in mind that 6 V is the usual nominal voltage for a dynamo system. It will depend what electronics are in the lamp, and whether you can find out the manufacturer's voltage spec. I have an LED front lam...
by wjhall
13 Jul 2017, 2:32pm
Forum: Bikes & Bits – Technical section
Topic: Advice on a 1970s dynamo
Replies: 12
Views: 627

Re: Advice on a 1970s dynamo

I have a 1970s bottle dynamo on one bicycle, and an early 2000s version on another, so that probably shows me to be addicted to the bottle. They are backed up with two modern rear LED battery lights and one rear front light on each. My advice for your application, a cheap commuting bike, would be to...
by wjhall
3 Jul 2017, 11:21am
Forum: Does anyone know … ?
Topic: Dramatic bicycle and car crash .. but who had priority?
Replies: 182
Views: 7805

Re: Dramatic bicycle and car crash .. but who had priority?

I shall mostly ignore the actual dispute and just comment on the junction. It has the markings you would expect for a footpath crossing a road, in which case HC rule 59 and subsequent appear to apply (1). This does require drivers not to run into people using the footway, however nothing allowing pe...
by wjhall
12 May 2017, 12:29pm
Forum: Does anyone know … ?
Topic: French laws for cyclists
Replies: 25
Views: 7390

Re: French laws for cyclists

This (1) , which appears to be on an FFCT branch website, but does not carry their branding or a date within the pdf, says lights are a compulsory fitment. This commentary (2) contradicts this, suggesting that 'position lights' are only needed at night and if visibility is insufficient during the da...
by wjhall
17 Jan 2017, 12:23pm
Forum: Bikes & Bits – Technical section
Topic: 1981 Lady Galaxy rear brake problem
Replies: 7
Views: 769

Re: 1981 Lady Galaxy rear brake problem

Thanks for the further suggestions. I have put in a pair of V-Brake blocks, which have a 10 mm spacer behind them, creating an extra 10 mm available pull on the brake wire. The simplest solution. There was actually more wear on the original brake blocks than I realised, they had lost about half, or ...
by wjhall
14 Jan 2017, 9:29pm
Forum: Bikes & Bits – Technical section
Topic: 1981 Lady Galaxy rear brake problem
Replies: 7
Views: 769

Re: 1981 Lady Galaxy rear brake problem

the easiest way of lowering the straddle and thus making clearance would be to install new (thicker) brake blocks and/or pack out the extant ones between the brake block a.... .... .... using a modified V-pipe to make the tight turn. Thank you, I can see all those as being feasible, I will probably...
by wjhall
14 Jan 2017, 8:05pm
Forum: Bikes & Bits – Technical section
Topic: 1981 Lady Galaxy rear brake problem
Replies: 7
Views: 769

1981 Lady Galaxy rear brake problem

Problem: I have just taken my wife's 1981 Dawes Lady Galaxy out of store with a view to recommissioning it for someone else to use. It has been relatively little used, so is in essentially original condition, apart from a handlebar change, during which I must have fitted a new inner wire. It is the ...
by wjhall
30 Sep 2016, 11:35am
Forum: Bikes & Bits – Technical section
Topic: 27 x 1x 1/8th tyres
Replies: 9
Views: 501

Re: 27 x 1x 1/8th tyres

The Continental Supersport 28-630 is still being advertised as avaiable by SJS, Wiggle and Chain Reaction, and no doubt others. SJS have the folding version of a Pasela tyre in this size.

The cheaper Ultrasport seems to be out of stock in this size at W & CR.
by wjhall
9 Sep 2016, 3:57pm
Forum: Does anyone know … ?
Topic: ... about Bart's 1/2" maps?
Replies: 40
Views: 5120

Re: ... about Bart's 1/2" maps?

They were a good scale for long tours. The main problem with them was that there was no clear distinction between untarmacced and tarmacced minor roads. (The OS 1/4 inch were more consistent for this.) I suspect the reason was that they had not really been updated since about 1900. As an example, if...
by wjhall
8 Sep 2016, 2:09pm
Forum: Does anyone know … ?
Topic: Coloured Mudguards
Replies: 47
Views: 2785

Re: Coloured Mudguards

The current limited range of mudguard colours is why your friendly local car parts shop sells a wide range of spray paints. The quality of results probably depends mostly on how well you clean the guards before painting, and perhaps whether you use primer or undercoat. House paint is quite good for ...
by wjhall
6 Jul 2016, 2:24pm
Forum: Bikes & Bits – Technical section
Topic: Spares for France
Replies: 20
Views: 1286

Re: Spares for France

The bike has since completed a couple more continental tours, plus intensive local use, but I now hear that it has fractured at the down tube – head tube joint. So possibly the answer to my question about spare axles should have been: “There may be a notorious stress raiser in the rear axle but many...
by wjhall
15 Jun 2016, 3:00pm
Forum: Bikes & Bits – Technical section
Topic: Regreasing a 6 speed block
Replies: 8
Views: 568

Re: Regreasing a 6 speed block

Can you recommend any semi-fluid grease products for this? .... If you want to lubricate it, I'd suggest cleaning it (if necessary) and then lubricating it using an aerosol semi-fluid grease; this will penetrate whilst it still has the solvent in it, but once that has evaporated, it will leave a mor...
by wjhall
6 Apr 2016, 11:03am
Forum: Bikes & Bits – Technical section
Topic: Smaller Cranks and Fitting Chainsets
Replies: 61
Views: 2303

Re: Smaller Cranks and Fitting Chainsets

Being able to put both toes on the ground probably was part of the traditional initial set up for an ordinary bicycle, although the only second millennium books I have to hand only mention putting one toe down. It goes with the traditional geometry compromises for ordinary bicycles, but, as people h...
by wjhall
24 Feb 2016, 12:04pm
Forum: Does anyone know … ?
Topic: Red Light Jumping
Replies: 26
Views: 1316

Re: Red Light Jumping

The regulations quoted appear to say that the traffic lights apply to the line joining the physical lights together only if a stop line has not been provided, or is not visible. Since a stop line has been provided and clearly does not apply to the cycle lane then the designer's intention to create a...
by wjhall
26 Jan 2016, 12:53pm
Forum: Does anyone know … ?
Topic: Do police care about injured cyclists?
Replies: 13
Views: 1252

Re: Do police care about injured cyclists?

It is possible that checking both vehicles is part of a standard procedure, one advantage of which is that they can subsequently cut off any claims from the other party based on the condition of your bike, which they can report as checked and found to be good. I notice when reporting a minor assault...