1,334 reputation
514
bio website chiark.greenend.org.uk/~armb
location Cambridge, UK
age 49
visits member for 3 years, 1 month
seen yesterday

Apr
9
comment Do Mandatory Bike Lights at Point of Sale Save Lives?
German law requires dynamo lighting on most bikes. There's an exemption for lightweight road bikes, which apparently might be relaxed more generally - sueddeutsche.de/auto/…
Apr
9
comment How do you install a hub dynamo?
It is, in theory, possible to destroy a rim by massively overtightening the spokes when building the wheel. But it's unlikely. What you can do on some dynamo hubs is break the internal wiring by turning something that looks like it might adjust the bearings - make sure you read the manual for your hub. It probably has sealed bearings you can't adjust anyway.
Apr
9
comment How do you install a hub dynamo?
I've built hub dynamo wheels. Unless it's a small wheeled bike like a folder, the shorter spokes aren't going to make a significant difference. It's still a symmetrical front wheel, which is easier than a back. Well, unless it's a Sturmey Archer rear wheel combined dynohub and hub gear.
Apr
9
comment How do you install a hub dynamo?
The advantage of a spoke cutting machine (which puts the new (rolled) thread on a cut end) is that a store can create spokes of exactly the length needed for any wheel that a customer brings into the workshop, without having to wait to order new ones in, while only needing to stock a few sizes. But even a cheap one is indeed a lot more than a set of spokes - billys.co.uk/english/group.php?prod=2CY07836
Mar
11
awarded  Constituent
Mar
5
awarded  Caucus
Feb
28
awarded  Yearling
Feb
18
comment Folding bike for commuting and touring
Pacific Cycles might also be worth considering, but I don't have any experience of them.
Feb
6
comment Folding bike for commuting and touring
The Friday Tikit folds in far less than 30 seconds - bikeradar.com/gear/category/bikes/folding/product/… But it's a 16" wheel bike, like the Brompton. Probably more suitable for touring than a Brompton, but also more expensive.
Feb
6
comment Folding bike for commuting and touring
Actually "folding handlebars help" is unfair to the Espresso. I have a bike built around an old Espresso frame, the current model apparently comes with a "FLATPAK" stem that swivels without tools.
Feb
5
comment Why is it common for cheap bikes to have the frame sawn in half below the saddle?
And really nasty cheap children's bikes sometimes have a similar split to look as if they have rear suspension, without bothering with even bouncy suspension with no damping.
Feb
5
answered Folding bike for commuting and touring
Feb
5
comment Conversion question
Nice - taking out and replacing links is a bit more hassle than "shift from chain ring to chain ring by hand" though. But I think what he really wants is to find out what's wrong with his derailleur-as-tensioner setup.
Jan
6
comment Are there Dynamo powered, rear flashing lights?
There's a faint chance you could find a battery powered one that still works while attached to a USB charger and charge while in use. Otherwise, what @Ӎσᶎ says, I guess. Or just live with a battery powered one, with the option of charging a spare battery off the USB port and swapping batteries from time to time.
Jan
3
comment MTB Conversion For Lighter Commuting
There are 700c touring and cross bikes with discs. If 700c wheels fit at all, keeping discs will be easier than changing to brakes the frame isn't designed for.
Jan
3
answered Can I pedal my bicycle backwards to move it backwards?
Nov
27
comment Should I get a reflective jacket/coat, or more lighting and reflective strips for the bike?
Or to put the PR thing another way: twitter.com/t1mmyb/status/405340126978375681/photo/1
Nov
19
comment What are the consequences of riding a bicycle tire backwards?
It'll work for the back if you have a flip-flop hub :-)
Nov
19
answered does anyone sell bicycle trailers with brakes?
Nov
19
comment does anyone sell bicycle trailers with brakes?
The tricky bit with a brake hose is going to be that you want to be able to split it, so you can take the trailer off.