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Aug
30
answered Adjust handlebar position/height (damaged screw?)
Aug
25
comment How do I calculate calories burnt using my bicycle's weight?
The formula above given by @Weirix assumes a constant heart rate, which might be useful for a very rough estimate. I have not looked at the FirstBeat algorithm used by Garmin, et al., but I would guess it is a bit more sophisticated, and I'd be willing to wager the number it yields is far more accurate.
Aug
25
answered How do I calculate calories burnt using my bicycle's weight?
Aug
13
comment pedal crank moves and tries to slip off the axle
It would be helpful to know specifically what sort/brand of pedal we're referring to here.
Aug
12
comment What is mysteriously slicing the inside of my tubes?
@Jimself, look at the way the tape or strip or whatever is lying in the channel of the wheel. Can it move in any way? If so, can the spoke holes be exposed? If so, this may be the root of the problem. Your picture looks to have a patch obscuring the cut; can you show a picture of the cut?
Aug
12
comment What is mysteriously slicing the inside of my tubes?
@Jimself, again I would encourage, don't use electrical tape or duct tape inside your tire. A good quality rim strip, properly installed, should solve your problem. Be sure to buy the right size. youtu.be/X8NfF3vTY08
Aug
12
comment What is mysteriously slicing the inside of my tubes?
A picture of the rim, with the channel that the tube rides in, would be helpful. If you are using rim tape, it is possible, over time, for the adhesive to deteriorate. The tape can move around as you install the tire and/or use the wheel, exposing the spoke holes. I had this problem and went through four or five tubes before I figured it out; the poor quality tape I was using wasn't sticking. Switching to a rim strip made all the difference.
Aug
12
comment What is mysteriously slicing the inside of my tubes?
I understand the terms are sometimes interchanged, but truly tape has an adhesive side, whereas the rim strip has no adhesive.
Aug
12
comment What is mysteriously slicing the inside of my tubes?
Rim strip: amazon.com/Ritchey-Rim-Strips-26x20mm-Blue/dp/B000QSWAUO
Aug
12
comment What is mysteriously slicing the inside of my tubes?
Rim tape: amazon.com/Velox-Fond-Jante-tape-17mm/dp/B001AYCJ6S
Aug
12
comment How to estimate price of an old CrMo frame?
The dropouts can also give an indication; if they are forged, they are more expensive. Hard to tell for sure in your pics, but they look cast.
Aug
12
comment How to estimate price of an old CrMo frame?
Regarding the tells of a low-end bike, since the bike was made to order, I think it is a given that it is at least a mid-level to high-level frame. Who would custom order a frame made of straight-gauge/unbutted tubes (a.k.a. "gas pipe")? If there is a sticker anywhere on the frame that identifies the steel, e.g. Champion #2 or some equivalent, that will give an indication of the quality. You can also look carefully at the dropouts and the lugs; in your photos, the lugs appear to be thinned, slightly, which shows the builder took some care.
Aug
12
comment What is mysteriously slicing the inside of my tubes?
I would go with a rim strip instead of rim tape, and be sure it is the correct width. Too, I would be very uncomfortable introducing electric tape into that environment. I have no idea how the vinyl in the tape, plus the adhesive, would react with the butyl rubber of the tube/rubber of the tire.
Aug
11
comment How far can one cycle without food?
This is a bit excessive... eating every five miles. On a three-hour ride, covering 50 miles, my Garmin (informed by a heart rate monitor) tells me I am burning 1800-2000 calories.
Aug
11
answered How to estimate price of an old CrMo frame?
Aug
10
comment What bike have I bought?
It would be easier if you took some close-ups of various features: the Reynolds 531 sticker (it will show if the frame tubes are plain gauge or butted), the dropouts, the lugs, the serial number, and so forth. <a href="homepage.ntlworld.com/nkilgariff/… a reference which may be of interest</a>.
Aug
9
comment Who recognises this titanium frame?
I would ask in the C&V subforum over at Bikeforums. I'd be surprised if someone doesn't know. bikeforums.net/classic-vintage
Aug
8
answered Does this rim tape need to be replaced?
Aug
8
comment How much faster will I be if I lose 10kg (from 100kg, all else equal)
Of course, but the assumption is made for the sake of simplicity, so one can see at least how much benefit could be earned.
Aug
7
answered How much faster will I be if I lose 10kg (from 100kg, all else equal)