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 Yearling
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comment Standing vs. high rpm for acceleration
To get a decent measure of acceleration from a standing start with any software you'll need bike-mounted sensors. At a minimum a wheel rotation speed sensor like on a standalone bike computer. GPS accuracy and especially update frequency aren't enough over the timescales you're interested in.
Jun
25
awarded  Yearling
Jun
20
revised Electronic bike keeps getting flat tire on the back
Fixed typing.
Jun
20
revised What is the best way to track you mileage, routes and calories burned?
+BTLE
Jun
18
comment What is the best way to track you mileage, routes and calories burned?
Do we/should we have a big list of tools?
Jun
18
answered What is the best way to track you mileage, routes and calories burned?
Jun
17
answered Electronic bike keeps getting flat tire on the back
Jun
15
comment Computer Light For Nighttime Riding
That's a nice approach if rather fragile. Note that you can buy LEDs with different (wider) viewing angles, probably including those with built-in resistors if you look hard enough.
Jun
15
comment Computer Light For Nighttime Riding
As @mattnz suggests a helmet light might work. My cheap, narrow beam helmet light throws a little light outside the beam, which might be just enough. You'd be dazzled reflecting the central beam off something shiny that close to you.
Jun
14
comment Computer Light For Nighttime Riding
For those of us who aren't familiar with this bike computer it would be handy to have some more details. What's the light for? Is it a bike light built in to a bike computer (I have one of those on the shelf) or is it a backlight to read the computer screen? If the former I suggest adding another light. If the latter (which I suspect you mean) you may find that an extra LED shining on the screen is tricky to get right so that you can read the screen easily, but modifying the computer may be harder.
Jun
10
comment Bottle dynamo wiring a headlight and taillight on 1980s bike
If you say the dynamo is earthed via the fork, and you've got a voltmeter, you should first check which of the B and S terminals is earthed and which has a voltage present, and make sure that the 0V lead is the one that's connected to the frame. The screw under the cranks may well be intended to connect a wire to the metal fender as the fender itself may be mounted through painted parts in principal.
Jun
6
comment Electric Bike (eBike): Freewheel or Regenerative braking?
The two don't have to be mutually exclusive in theory. In practice they might always be.
Jun
4
comment Finding the right length of chain lock for my road bike
If you only lock the bike up in 1 or 2 places this might be of some use, but in practice cables and chains are less flexible than string so you'd have to guess how much to add.
Jun
4
comment Finding the right length of chain lock for my road bike
+1 but I'd recommend making the cable lock completely independent of the U-lock. It's no heavier (and may be lighter if it can be shorter), means you can lock your bike to 2 separate railings (for example, or 2 loops if the bike rack is weak) and may allow you to lock your helmet up as well. Even though it's not much extra slowing down for a thief, it's still extra slowing down, and also adds flexibility. I do cable:(front wheel rim+helmet+front triangle to rack); U-lock(back wheel rim+rear triangle) to rack, filling the rest of the U-lock with a crank if necessary).
Jun
4
comment Do certain makes/models/types of bikes get stolen more than others?
If your bike isn't locked (or is locked with a toy lock), being hard to ride will make it harder for an opportunist to escape on. This means something like unusually large (without a QR saddle post), or I suspect a fixed wheel would eject many bike thieves pretty quickly. That's why taking the saddle away from the bike can protect the bike as well as the saddle, or removing the front wheel. Against a thief with a van and tools, you've already lost once they've chosen your bike.
Jun
4
comment Do certain makes/models/types of bikes get stolen more than others?
@digijim thus, any second lock secured to a different loop of the bike rack will slow them down.
Jun
4
comment Do certain makes/models/types of bikes get stolen more than others?
There are good reasons to use a cable lock as a secondary lock -- I'd change your point 3 to "Never, ever rely on..." or insert an "only". Bolt cutters aren't actually very good for cables (too blunt). But cable cutters that will do bike locks are smaller and cheaper -- much smaller and cheaper if you're prepared to nibble away at it.
Jun
4
comment What is the best way to approach train tracks?
Rather than hopping the non-mtb types like me can just shift our weight back add the front wheel bumps (and forwards as the back does) while standing up on the pedals.
Jun
4
comment What is the best way to approach train tracks?
+1 but it's possible to go too slow. Of y are going as slow as you can then lose a bit more speed because of gravel or a bump you can end up too slow to balance and steer cleanly at the same time, just when you don't want to be relying on accelerating. So bear that in mind when you slow down. (I face this every day with some vicious speed bumps that the cars cross at less than walking pace, but I've found it on level crossings before.
Jun
3
comment Fundamental principles of tire friction for off-road biking
The mention of mtb in the question implies to me more about a surface with poor grip than the perfect tarmac of this answer and its comments. I was hoping someone qualified to answer would address that aspect.