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Feb
28
awarded  Yearling
Feb
5
comment Why not have the gears inside the bottom bracket?
Apparently there was a B-Boxx announced back in 2008 too, but nothing seems to have come of it. bikerumor.com/2008/09/04/…
Feb
5
comment Why not have the gears inside the bottom bracket?
And in January 2016, it still hasn't shipped, but "we have come back from our latest trip to our partner's factory in Taiwan and have some good news. We are just starting final tests of fully manufactured (not prototyped) gearboxes." indiegogo.com/projects/3-speed-front-bicycle-gearbox-efneo#/…
Feb
2
comment How to install rear rack & fenders on a vintage road bike
You can also buy similar brackets ready made. Search for "Tubus Clamp Set For Seat Stay Mounting" or "P-clip".
Feb
2
comment How can I properly replace the hose on this older Schwinn pump?
Also, if @tim-c is right about it being a pipe thread, it may be tapered, and you won't find any nut or screw that fits properly. en.wikipedia.org/wiki/Screw_thread#Taper (The new Topeak connections use a rubber seal; I can't see from the photo if there's a rubber or fibre washer in the pump, or maybe one was lost. I'd be surprised if those flats are on a thread supposed to seal with a taper, but it's possible. It does look tapered, but maybe it's just unevenly worn.)
Feb
2
comment How can I properly replace the hose on this older Schwinn pump?
@DanielRHicks is that not exactly the assembly he has, which he's made work, but not sustainably, with some surgery to the existing hose?
Feb
2
comment How can I properly replace the hose on this older Schwinn pump?
In principle, you could use a thread gauge: en.wikipedia.org/wiki/Thread_pitch_gauge In practice, finding a nut that fits on your hose end or a machine screw that fits into your pump base will probably be easier. Be careful if you find one that nearly fits, or it will chew up the existing thread.
Dec
28
comment does anyone sell bicycle trailers with brakes?
My guess is that the handbrake on the PT6 is (or was) for use when manoeuvring the trailer by hand when disconnected.
Dec
10
comment Dynamo Lighting Systems
Dynamos are nominally 6V 3W, with 2.4W front, 0.6W rear, or nominal 2.4W designed for use without a rear light.. (You can indeed get more power out at the same current, at least at higher speeds.)
Dec
10
comment Trailer Lighting Using a Dynamo Hub
@BPugh Bromptons have 16" wheels and are available with dynamo hubs, so yes, you can use a hub dynamo in a 16" wheel. (Which doesn't necessarily mean you can use one in a Yak trailer with just a rear light.)
Oct
1
comment "Le vélo de Tati” - Jacques Tati by Robert Doisneau
art.co.uk/products/p14433152-sa-i2909596/… says "No longer available", but does at least mean that someone sold one sometime. christies.com/lotfinder/lot/… is a 2004 sale of a print for $2,629
Aug
12
comment Why are my wrists the first part of my body to start aching during a long ride?
I had a (flat bar) bike where trying padded grips and gloves, and adding bar ends for more hand positions, didn't help, but swapping the stem to a shorter one did. But without knowing more about your riding position, I have no idea if that's the same problem you have. It wasn't obvious to me that I had too much weight on my hands with the original set-up, but apparently I did. If you have or can borrow an adjustable stem, see if different positions help.
Aug
12
comment What is mysteriously slicing the inside of my tubes?
Unless you take the tyre off when fitting a new tube and put it on in a random position, but patch without taking the tyre all the way off, so it stays in the same position once you've changed the tube. In which case Daniel is almost certainly right. If you still can't find anything, swap the front and back tyres. If the problem moves wheel with the tyre, change the tyre even if you still can't find a loose wire.
Aug
12
comment What is mysteriously slicing the inside of my tubes?
Are you installing the tyre in the same place every time (e.g. label by valve)? Though I don't see how that would explain "different places with each new tube. But it doesn't move around once the new tube is put in".
Aug
12
comment Why don't cyclists wear all-encompassing motorcycle-style helmets?
Pedestrians can and do lose front teeth when they trip over too. This is why full face helmets make as much sense for walking as they do for cycling. It also solves the "where do I leave the helmet when I lock the bike up" problem.
Aug
12
comment Why not have the gears inside the bottom bracket?
Currently scheduled for November 2015: indiegogo.com/projects/3-speed-front-bicycle-gearbox-efneo#/…
Jun
30
comment Are older road bike parts compatible with newer standards? How do older and newer bikes match up performance wise?
My bike is early 90's, 126mm hub (7 speed), freehub, 700c wheels. I bought it new though :-) I've recently respaced the frame to 130mm and fitted a new groupset (with brakes swapped for long reach ones to fit). The wheels weren't the originals even before that, but were the same size. Buying a new bike might have been more rational than the upgrade though.
Jun
12
comment Adjusting brake rub on a mini-v brake (Giant Propel)
It's not labelled on the photo of the parts, but it's shown in the drawing for "5. Center the brake arms by turning the spring tension screw (align to seat stay)" on page 4.
Mar
27
comment In practical terms, how often do you have to adjust the belt tension of a belt drive bicycle?
Timing chains in car engines also last many thousands of miles without replacement or adjustment, but it would be wrong to conclude that therefore bike chains can do the same.
Mar
27
comment Pull Inexperienced Tandem Stoker?
See also gtgtandems.com/tech/propmethod.html for "The stoker makes no mistakes".