Search found 83 matches

by RobC
5 Oct 2018, 11:30am
Forum: Bikes & Bits – Technical section
Topic: Which failed first?
Replies: 11
Views: 703

Re: Which failed first?

Hi all Many thanks for the replies and shedding some light. I will see if I can find some photos - the bike's all stripped now but I think my friend took a couple beforehand. In answer to some Qs: it was a 126mm frame and an old-style freewheel. Perhaps it was unwise of me to fit a 7 speed freewheel...
by RobC
1 Oct 2018, 1:17pm
Forum: Bikes & Bits – Technical section
Topic: Which failed first?
Replies: 11
Views: 703

Which failed first?

A while ago I built up a 1970s Carlton touring frame for a friend of mine. He was on a budget so against my better judgement I ended up using a cheap rear wheel with a quando hub and a bottom of the range tourney rear derailleur. He phoned me the other day to say it was kaput. I have now managed to ...
by RobC
18 Jan 2018, 12:49pm
Forum: Bikes & Bits – Technical section
Topic: Grease Guns, lube ports and grease nipples
Replies: 47
Views: 18457

Re: Grease Guns, lube ports and grease nipples

Some good info here, thanks. What would I use with the sprung ball-bearing type of nipple that's on the BB shell of an old raleigh lenton? It tends to start creaking a bit after rain and it's a faff having to undo it all to get rid of the noise. Incidentally whenever I do undo it all there's still l...
by RobC
15 Jan 2018, 11:48am
Forum: Campaigning & Public Policy
Topic: Have your say on changes to the Ultra Low Emission Zone and Low Emission Zone in London
Replies: 9
Views: 880

Re: Have your say on changes to the Ultra Low Emission Zone and Low Emission Zone in London

A filter or cat would make no difference to the arbitrary ban - they simply go by date of registration. I've got a Citroen BX 8) By not buying a new car I've saved the world plenty of environmental damage. I know that this low emission zone is about a localised problem rather than global, but still...
by RobC
10 Jan 2018, 12:45pm
Forum: Campaigning & Public Policy
Topic: Have your say on changes to the Ultra Low Emission Zone and Low Emission Zone in London
Replies: 9
Views: 880

Re: Have your say on changes to the Ultra Low Emission Zone and Low Emission Zone in London

Being a total NIMBY here, but this is really unfair for those with rarely used modern classic 1980s/1990s petrol cars who happen to live within North/South Circulars (i.e. me!). Probably 1% of the petrol cars (which are only 12% of the problem as it is), if that. Main culprits are vans, taxis, busse...
by RobC
7 Nov 2017, 12:30pm
Forum: Bikes & Bits – Technical section
Topic: Low gear pawls in 1938 Sturmey AT Hub
Replies: 2
Views: 221

Re: Low gear pawls in 1938 Sturmey AT Hub

Thanks Brucey - yes indeed I was going to replace all of the common wear parts while I was at it so all pawls will be brand new. Glad there's no issue using modern ones. Hadn't thought about asbestos! Too late now, but I suspect this will be the only time I'm in such a situation so I should be ok......
by RobC
7 Nov 2017, 11:31am
Forum: Bikes & Bits – Technical section
Topic: Low gear pawls in 1938 Sturmey AT Hub
Replies: 2
Views: 221

Low gear pawls in 1938 Sturmey AT Hub

As part of my tandem restoration I've now stripped this rear hub. It's basically an AW with a 110mm hub brake. http://www.sturmey-archerheritage.com/index.php?page=history-detail&id=53 IMG_5963.JPG The rubber in the brake shoe was surprisingly intact so I won't need to reline it. Interestingly t...
by RobC
2 Nov 2017, 3:37pm
Forum: Bikes & Bits – Technical section
Topic: More spokes questions: 1930s 32h tandem front wheel
Replies: 9
Views: 642

Re: More spokes questions: 1930s 32h tandem front wheel

Thanks for the advice. Will relace. Enjoying learning all about wheelbuilding with your help! I did want to use the holes as they were originally but: when I was doing the trailing spokes I put the spokes in the same way on the first flange, yet when it came to doing the other side's trailing spokes...
by RobC
1 Nov 2017, 10:34am
Forum: Bikes & Bits – Technical section
Topic: More spokes questions: 1930s 32h tandem front wheel
Replies: 9
Views: 642

Re: More spokes questions: 1930s 32h tandem front wheel

So I managed to find a nice Dunlop 590 rim in good condition from roughly the right era, and have now laced up the wheel with DT Alpine III spokes. Initially I put washers on the spokes, but they would not get snug with the head due to the flange upto the head (is flange the right term here?!) meani...
by RobC
29 Sep 2017, 2:38pm
Forum: Helmets sub-forum
Topic: Searching for statistics and studies
Replies: 39
Views: 1828

Re: Searching for statistics and studies

Thanks Alan, that's useful!
by RobC
29 Sep 2017, 10:58am
Forum: Helmets sub-forum
Topic: Searching for statistics and studies
Replies: 39
Views: 1828

Re: Searching for statistics and studies

This is a recent report using data from St Marys Hospital. The conclusion is "In a largely urban environment, the use of cycle helmets appears to be protective for certain types of serious intra and extracranial head injuries. This may help to inform future helmet design." I've read it as ...
by RobC
4 Sep 2017, 4:12pm
Forum: Bikes & Bits – Technical section
Topic: Obtaining older size tyres and rims
Replies: 12
Views: 2065

Re: Obtaining older size tyres and rims

I have the Schwalbe HS130 32-597s on my old Lenton, and ride 12 odd miles through London every day. They're great tyres for the job they do and I'm very happy with them. Cheap too! Of course they're no gatorskin or marathon+ as far as puncture protection is concerned, but certainly not atrocious in ...
by RobC
13 Jul 2017, 2:12pm
Forum: Does anyone know … ?
Topic: Asymmetric front/rear tyres?
Replies: 98
Views: 5404

Re: Asymmetric front/rear tyres?

The 1930s tandem I'm currently restoring has a rear rim in 26 x 1 3/8 tyre size (590) and a front rim in 26 x 1 1/4 size (597). I don't know if this was common for tandems 'back in the day'...?

Of course once tyres were fitted both wheels would have roughly the same total diameter though.
by RobC
23 Jun 2017, 11:47am
Forum: Bikes & Bits – Technical section
Topic: More spokes questions: 1930s 32h tandem front wheel
Replies: 9
Views: 642

More spokes questions: 1930s 32h tandem front wheel

Along with all my other projects I'm currently restoring my grandparents' 1930s Grubb tandem. The rear wheel is fine: chrome and hub in good condition and 40 extremely thick galvanised spokes. But I've dismantled the front wheel because the rim and spokes were in a very poor & corroded state. Sp...
by RobC
22 Jun 2017, 12:46pm
Forum: Bikes & Bits – Technical section
Topic: Rear wheel not centred
Replies: 8
Views: 561

Re: Rear wheel not centred

The spacing was ok - about 115mm which is roughly what it should be. I made a little dropout alignment tool which showed they were pretty far out - all brought much more in line now. Wheel still sits a bit to the left but is much improved and I reckon it'll do - don't want to be bending the steel ov...