8,107 reputation
42647
bio website kibbee.ca
location Ottawa, Canada
age 34
visits member for 4 years
seen 9 hours ago

I'm a .Net web developer.


Jul
17
comment Should tyre sidewalls appear cracked so quickly?
As a point of reference, I use a good floor pump with a pressure gauge, and always keep the tires near the recommended inflation (80 psi on 700x32) and I still get cracks similar to shown in Fig. 1 in the link, although I don't use Schwalbe tires.
Jul
15
comment Could you make a bike frame out of 24kt gold?
You'd run into tons of problems because the material is so soft. Just think about attaching a wheel to a solid gold fork. Even the pressure from tightening the axle bolts or quick release would deform "drop-outs". Even if they were oversized with extra long bolts to compensate for the added thickness, the bolts would still work themselves loose in no time.
Jul
15
comment Could you make a bike frame out of 24kt gold?
Probably make much more sense to make a steel frame and gold plate it. Even if you could make the tubing large enough to support the weight of the rider, it would still be quite soft and easy to dent. Also, assuming the frame weighed a mere 5 kg, which would bring the total build weight close to the UCI weight limit of 6.8 kg, it would cost over $200,000 just for the gold alone at today's gold prices.
Jul
15
comment Converting a Bicycle without gears into a Geared one?
See also this question
Jul
14
comment Theft deterrents (in addition to locking up a bike)
One thing that needs clarification is this "high number of stolen bicycles, as much as 50%, were fly-parked". It doesn't say what percentage of bikes in the study were "fly-parked". If 50% of the bikes were parked this way, then fly-parking wouldn't really increase your chances of having your bike stolen. Or if there tended to not be adequate bike racks in high crime areas, then the theft may have been more due to the fact that was parked in an high crime area, and not because of the structure the bike was locked to.
Jul
11
comment “Quick Fix” Tyre Repair Spray Cans
@Aushiker Yep, looks like prefilled tubes are still sold.
Jul
11
comment “Quick Fix” Tyre Repair Spray Cans
"Wouldn't be suitable for some punctures". This is the key right here. If you have a complete blowout, this isn't going to help. You won't know it's a blowout unless you take the time to remove the tube and inspect it, and by that time, it's easier just to replace the tube. If you don't inspect it, and it is a blowout, this product would probably cause a huge mess.
Jul
4
comment Analysis of Stages high-speed data
Wattage is define as Joules Per Second, or Nm / seconds. Since you have a value for Nm, and the timestamp, you should be able to calculate the wattage. The angle or speed of the crank arm doesn't come into the equation. Your wattage will vary throughout the pedal stroke, as you are less efficient at various positions through the pedal stroke. At least I think this is the way it works. Somebody feel free to correct me.
Jul
4
comment Why the penny-farthing?
I imagine the modern equivalent of that is riding brakeless fixies or unicycles. People want to show off their prowess by doing something that's inherently difficult to set themselves apart from the crowd. In the days of penny-farthings, I don't think many used them as a main form of transportation, but rather for recreating and racing.
Jul
3
comment Why top touring bikes have no suspension forks?
I'm not that old, and I remember when mountain bikes didn't have suspension. Mind you, we weren't doing the same types of trails you can do on a current full suspension bike, but they worked well for many uses. The few times I've taken my touring bike off the asphalt, onto nature trails it performed pretty well. I think one problem you might be running into with the bikes you linked to is that they have flat bars. These only allow one hand position, and after riding all day in the same hand position, you are likely to get sore.
Jul
1
comment Specific 10 speed chain models that work well on 9 speed Shimano rear drivetrains
I don't really see so much problem with using the proper chain. As far as stocking extras, you'd only need 2 chains. It's not like you need 6 different sizes. This is assuming you needed to stock them in the first place. They are not uncommon and should be readily available at your local bike store.
Jun
30
comment How do I get rid of odor from cycling shoes?
Are you cleaning for cosmetic reasons or reasons related to odour? I find my shoes get quite stinky if they get wet and don't dry fast enough. A generous dose of foot odour spray seems to clear up the problem.
Jun
26
comment What are the most important accessories for a new biker to get?
You should carry the tools for patching a tire. If trying to use a cell phone, your friends are going to get pretty annoyed if you ask them to pick you up every time you get a flat. With a credit card you could pay for a cab, but that's just a very expensive way of dealing with a flat. You still need the tools to fix it later, so you might as well carry them with you. You could take it to the shop to fix it, but that gets expensive. I only get a couple flats a year, and still I would think it's crazy to not to carry the tools to fix a flat on the road. Unless your longest ride is about 3 km.
Jun
25
comment What kinds of tools do I need to do bike maintenance, e.g. adding a rack?
You really only need specialty tools when you start replacing components on the drive train. Things like crank pullers, cassette tools and chain whips are pretty cheap, and you should buy them as the need arises.
Jun
25
comment Upgrading cassette - what do I need to be aware of?
Yeah KMC chains are pretty decent, and you can get them for under $20. Even the Shimano ones are under $25 if you shop around. No point in being a cheapskate and using a $7 chain.
Jun
25
comment Does the National Bike Registry work?
Relevant XKCD Although I can see why it would be so hard to set up an official database, because there just isn't that much at stake. Most people own bikes that are worth less than $300. And theft rates are pretty low, especially outside large cities because it's not financially sound to transport stolen bikes to other cities for sale, and selling a bike in town is too risky if the population is too small.
Jun
25
comment Upgrading cassette - what do I need to be aware of?
I don't think you need Shimano HG, but don't quote me on that. I have a KMC chain on mine and it works fine, but I have an 8 speed. Guy at the bike shop specifically said to get this chain, and not to worry about buying the official Shimano one as it performs the same at a cheaper price.
Jun
24
comment Asking for Feedback about my Bike Lock Invention
@DanielRHicks Actually, unless I'm mistaken, public disclosure of an invention before it's patented (or applied for patent) is actually grounds for not having a patent granted. But the OP never said anything about wanting to patent the invention. It's also possible that he came up with the idea on his own without being aware of already existing products. Current locks have limited number of combinations due to manufacturing constraints. I wonder if 3D printing could be used to make each set of bolts truly unique.
Jun
23
comment Does anyone make a spacer for SPD cleats?
See this question. Recommendations include ask your local bike shop, or make your own out of plastic milk jugs.
Jun
23
comment Can you help identify this bike?
The lack of labelling on almost all the components leads and the general shape of the frame leads me to think it's a generic deparment store bike.