8,538 reputation
42749
bio website kibbee.ca
location Ottawa, Canada
age 34
visits member for 4 years, 2 months
seen 11 hours ago

I'm a .Net web developer.


Jul
23
comment Annual technology gap of high end road bikes
It's worth noting that The UCI rules article 1.3.007 states that all parts must be commercially available. So by having Di2 used in the tour in 2009, it would have to be available commercially that same year or before. I think that's part of the reason you see these $15,000 bikes for sale. A bike isn't race legal unless it's sold commercially. If there wasn't that requirement, you probably wouldn't see manufacturers trying to sell these bikes. Just like you can't buy an F1 or NASCAR car.
Jul
23
comment Annual technology gap of high end road bikes
I think it's really hard to define "high-end". Some might say a Corvette is high-end even though you can get one for $60K. Meanwhile, a Ferrari Testarossa costs around $220,000, and there are other super cars that cost over $1,000,000. A $2000 bike it still quite a high performance bike. The amount of advantage you'd get from a $10,000 bike compared to a $2000 is really only something you'd notice at a highly competitive level. The biggest difference you'd notice is the drain on your bank account, both at purchase time, and when you need replacement parts.
Jul
22
comment Annual technology gap of high end road bikes
The point is, is that they will always want to sell a $5000+ bike. But if they start putting electronic shifters on a $2000 bike, what reason is there to spend $5000? If there is no discernible difference between the components why spend more. The point is, as we both agree that electronic shifters are a long way off for $2000 bikes. But our reasoning for that conclusion differs. You say its because of the high cost of the components, while I say it's because they are creating artificial scarcity with high prices to create bikes which cost thousands of dollars in order to make a lot of money.
Jul
22
comment Annual technology gap of high end road bikes
Some guy mode homebuilt electronic shifters of electronic shifters for around $155. They aren't quite as nice as the factory built units, but they still did the job. If you do a parts breakdown, there's a some wires, a microcontroller, some batteries, and a few other cheap electronic parts. You could bring the costs down quite a bit if you were buying components by the thousands. Most likely it only costs Shimano less than $200 to make an electronic DuraAce as compared to a mechanical one.
Jul
22
comment Annual technology gap of high end road bikes
Probably never, or once they've abandoned mechanical shifters altogether. There's nothing inherently expensive about them. Maybe once they cost $1000 bought seperately. But then the same level of mechanical shifters would have to cost less, maybe around $500. But at that price, you'd start to see DuraAce\Ultegra on $1000 bikes, which they really don't want either. They want electronic shifters and DuraAce/Ultegra components to be expensive, how else do you convince people to spend $5000 on a bike. They won't abandon mechanical because some people will refuse to have batteries on shifters.
Jul
22
comment Annual technology gap of high end road bikes
As far as electronic shifting goes, the price is kept artificially high. There is nothing inherently expensive about the components necessary to create electronic shifters. Some parts actually become simpler, as the brake lever can go back to the old style of being just an actual brake lever and only need to move along 1 axis. Maybe once Shimano's patents on electronic shifters run out you'll see them lower their prices.
Jul
21
comment What's the lowest safe cadence on a climb?
If you are just doing this for "fitness/fun" why not pick a different route that doesn't have 15% climbs on it until you get into better shape?
Jul
20
comment Clipless pedals: Why clipping in so darn difficult?
Glad I could help.
Jul
19
awarded  Popular Question
Jul
17
comment Clipless pedals: Why clipping in so darn difficult?
@PeteH As long as the contact area is rigid and doesn't flex, the size shouldn't matter. I guess the larger platform spreads the pressure out over a larger area on sole of the shoe, but unless the sole is flexing and therefore not distributing the pressure evenly over your foot, making things uncomfortable, then you could have a problem. But if the shoe is sufficiently rigid, this won't happen. You could step on a nail, and as long as it doesn't go through the sole the pressure on your foot would be distributed the same as if you were standing on solid ground.
Jul
17
comment Clipless pedals: Why clipping in so darn difficult?
Other double sided options include Speed Play, Crank Brothers Egg Beaters and Time ATAC
Jul
17
comment Clipless pedals: Why clipping in so darn difficult?
My SPD Pedals are clip on one side, platform on the other. They are weighted such that the clip is usually up. So they clip in quite easily. In the event that they aren't oriented correctly, the platform works well enough that I can pedal and then clip in once I get up to speed. Also don't confuse the rule 34 above with the NSFW Rule 34.
Jul
17
answered Clipless pedals: Why clipping in so darn difficult?
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.