31 votes

Best E-reader for a touring bike?

How's this for ultimate lounging - you could add a projector that projects onto the sail, not only could you read ebooks while you cycle, but also watch the occasional movie! very nice ergonomics, no ...
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  • 12.1k
17 votes

Can I safely drill a hole from the crown into the steerer in my carbon fork?

When carbon manufacturers and fabricators put holes in things, they're thinking about: Whether disrupting the continuity of the carbon layers in that way will leave it strong enough. Whether there ...
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15 votes

How to make a 10 year old electric bike battery work better?

As said, the batteries need replacing. They have a limited lifetime, regardless of use. You don't say if they are lead acid or lithium - if lead acid, they will certainly stuffed. If Lithium they ...
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  • 40.7k
13 votes

Best E-reader for a touring bike?

I think it's obvious that you'll need a heads-up display in order to see the road through the text you're reading. Safety first and all that. So you're going to want to combine this project with a ...
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  • 24.4k
12 votes

Password protect Shimano Di2?

This is an odd question. The sentiment that the only security here is physical security is correct. Think about the following: The Shimano Di2 components are not mated/matched to a specific computer ...
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  • 689
12 votes

Best E-reader for a touring bike?

A serious answer - consider an MP3 player and an audio-book instead. While sound-isolating headphones are bad for awareness, a single (ie mono) speaker can work quite well. Personally I use two ...
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  • 100k
11 votes

Best E-reader for a touring bike?

What is the best E-reader to use on a touring bike? What will mount well on a drop bar, withstand the vibration, and not jiggle so much that you can't read it? Something like Google Glass (yes, The ...
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  • 16.4k
11 votes

Is an IP68 rating sufficient to protect a phone during a 12 hour ride in heavy rain?

It should be. That's how I navigate on all my rides, wet or otherwise (phone on the bars). I've done this for a few years, but not completely without incident. Some tips: Make sure all port covers ...
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  • 47.1k
9 votes

Can I safely drill a hole from the crown into the steerer in my carbon fork?

I would assume it is not safe to drill into carbon, not at that location. I am not saying that it is not safe, only that I strongly suspect so and that I am not willing to assume otherwise. To state ...
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  • 20.3k
8 votes

Has anyone successfully changed the battery in a Knog Blinder Mini Dot?

I found this which suggests that you'll have to open it by force - I'd try a razor saw if there's no obvious edge to pry. You may not need to replace the battery - if there's a protection circuit ...
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  • 367
8 votes
Accepted

Are there any electronic shifters that decide front/back for you?

SRAM eTap has a mode for this. It’s called Sequential Shift Mode: Sequential Shift Mode simplifies the shifting experience by automatically controlling the front and rear derailleur as you upshift or ...
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  • 20.2k
6 votes

Password protect Shimano Di2?

Perhaps instead of password protecting it, you might want to think of ways you could detect that the device was tampered with. I'm not certain how often you would change settings or plug into it, but ...
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  • 21.4k
6 votes
Accepted

Electronic shifting for planetary gear hub

Rohloff has developed electronic shifting for their hub; Shimano offers an electronic-shifting add-on for Alfine. I'm not aware of any such from SRAM or Sturmey-Archer.
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  • 24.4k
6 votes

Are dynamo hubs specific to particular lights?

Speaking in terms of past few decades to current generator hubs and lights, mostly they are interchangeable, with some qualifiers and exceptions. Almost all current hubs and lights are based around 6 ...
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6 votes

How to make a 10 year old electric bike battery work better?

There are two parts to this question A 10 year old bike that has been out of use for a while Check tyres for cracking and flaking. Inflate, and if the tubes don't hold air then replace them (...
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  • 100k
6 votes

Can I safely drill a hole from the crown into the steerer in my carbon fork?

I faced exactly this question about a year ago. I did all the internet research I could, talked to bike mechanics and emailed fork builders and repairers. The answer that emerged from all this was a ...
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6 votes

Are there any electronic shifters that decide front/back for you?

The Shimano di2 system does this if you want. Using their app you can program the buttons to sequential shift 2, which I am using. You can choose where the computer shifts the front chainring and ...
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5 votes

Resetting unknown E-Tube Passkey

You can reset the Wireless passkey - even if you don't know the current one - by connecting your bike to a windows computer/laptop using the charger. Download e-tube for windows at https://e-...
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5 votes
Accepted

Is the XTR Di2 battery compatible with Ultegra Di2?

According to BikeRadar, "The battery unit as well as the wiring for XTR Di2 are identical components to the ones used in Shimano's electronic road groups. The battery can be mounted on a bottle cage, ...
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  • 45.6k
5 votes

Is an IP68 rating sufficient to protect a phone during a 12 hour ride in heavy rain?

You’ll be fine assuming you have a recent phone. They’re entirely glued and sealed shut on the inside, and there’s no battery hatch or anything to worry about either. I ride with my iPhone 7 (only ...
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  • 11.2k
4 votes

Can I charge an ebike from another ebike battery?

Here is a video I found which is very detailed and shows how to add a second battery to your bike: Video: How To Add 2nd Battery to the Fiido D2 Here's the link to the battery which was recommended ...
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  • 1,309
4 votes

Can I charge an ebike from another ebike battery?

Yes in theory but the gain is not practical. You’re better off swapping batteries than trying to jury rig something. Let’s do the calculations. You note that the AC charger puts out 36VDC at 2 ...
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  • 28.5k
4 votes

Can I safely drill a hole from the crown into the steerer in my carbon fork?

IF you do drill a hole, I would suspect that going straight down the steerer tube (ie radially out of the tyre) would be better than drilling in through the side of the steerer tube. Firstly, you're ...
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  • 100k
3 votes

AC dyno light on battery pack?

If the AC/DC convert is a simple rectifying bridge plus filter and voltage stabilizer, it should work with a direct current source as well. The only question is how many batteries connected serially ...
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3 votes

RPM regulation of direct hub motors

adding to Chris H 2018-04-30 post... I'm going to take a stab at some basic math... BLDC motors can put out their rated power at high RPM partly due to air cooling enhanced by the high RPM (like ...
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3 votes

Bosch Nyon and W-LAN

I have two Nyon computers and I can assure you they both connect to WPA and WPA2 secured networks. BUT this doesn't work reliably! Sometimes it works, sometimes it doesn't. Often it takes a dozen ...
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  • 31
3 votes

Bosch Nyon and W-LAN

I was able to connect to an unsecured WLAN with my Nyon. I updated the Nyon and tried to connect to a secured network again, but no luck! I'll try to contact Bosch support about that problem too. I ...
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  • 31
3 votes

Password protect Shimano Di2?

If you have a bike with Shimano Di2, physical security should be paramount - I'm not sure why an unsavory person should even be physically near enough to the bike to be able to make those changes. ...
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  • 45.6k
3 votes

Lights wiring polarity and wire marking

White stripe is ground. Consistency is a virtue, and Schmidt's obvious decision tells us the industry default. In principle, the two conductors are interchangeable, because AC. However, in the reality ...
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3 votes
Accepted

Is it possible to add a TT shifter to Di2 junction box?

Yes, of course, that's possible. You just plug the cables into the brifters. Peel the grip-covers forward and you'll see unused ports underneath. Those may be used for sprinter buttons or for climber ...
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  • 8,165

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