Questions tagged [electronics]

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6 votes
2 answers
187 views

Are there any fully automatic electronic shifters?

Inspired by Are there any electronic shifters that decide front/back for you? and a near duplicate of Is there such thing as an automatic transmission for bikes? the difference being that here I'm ...
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7 votes
3 answers
561 views

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

Are there any road bike electronic shifting systems out there currently that only have a single up and down shifter lever and use a computer to make the decision of whether to shift on the rear ...
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9 votes
1 answer
186 views

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

I have a pair of Knog Blinder Mini Dots which were left with their non-user-replaceable LiPo batteries flat over winter and now won’t take a meaningful charge. I’m handy with a soldering iron but less ...
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9 votes
4 answers
4k views

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

I want to install dynamo-powered USB charging apparatus inside my fork steerer. However, it's a carbon fork that has no exit at the crown for the dynamo wiring. Is it safe to drill a small hole (at ...
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  • 2,729
4 votes
1 answer
235 views

How do you repair or lengthen a B&M Luxos Control Cable?

Maybe this would be better off in electronics, but since it's bike gear specific, I thought I'd try here first. I need to have longer control cables on B&M's Luxos U headlight/charger combo. This ...
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6 votes
2 answers
2k views

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

I have taken a 10 year old electric bike out of the garage a few weeks ago after not having used it for multiple years. The bike is an elops 7 bought at decathlon with a geonaute battery. It still ...
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11 votes
3 answers
2k views

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

I would like to bring my IP68-rated phone with me on long rides where the weather might be very wet. As I understand, IP68 means it can withstand immersion at a depth of 1 metre for 30 minutes. ...
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  • 2,729
0 votes
2 answers
189 views

Electronic gears, how do they work?

As I happen to be endowed with the honor to use a Specialized S works road bike that was lying in a friend's basement, I decided to go for a ride until swift realization of the gears being electronic ...
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4 votes
1 answer
196 views

Are dynamo hubs specific to particular lights?

I am looking to purchase a dynamo hub, such as those made by Shimano, Son, Exposure etc. and a set of lights to connect to it. What I want to know is if any dynamo light will work with any dynamo hub, ...
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  • 737
2 votes
0 answers
466 views

Bosch eBike wiring diagram, where to find?

My RieseMüllerPackster80 refused to start today. I guess there is a bad connection somewhere but as all I could do was plugging the battery and computer in and out, I am not wiser whether cabling has ...
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  • 305
18 votes
5 answers
3k views

Best E-reader for a touring bike? [closed]

OK, folks, since today is April 1st and April 1st is pretty much the start of the cycling season here in Tropical Southern Minnesota, I figure it's the ideal day to ask this question: What is the ...
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5 votes
4 answers
4k views

Can I charge an ebike from another ebike battery?

I have a fiido d2s, and I love it. I'm not sure if I could upgrade to a bigger bike, because it fits so well in the back of my car and public transport. Anyway, it doesn't have a detachable/...
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  • 151
2 votes
1 answer
65 views

Tips for packing electrical cables near Giant Quick-E bottom bracket

I've been having major trouble getting all the cables back in after removing the bottom bracket electric motor from my Giant Quick-E. It's a rat's nest down there. There are cables coming from the ...
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  • 121
4 votes
1 answer
17k views

Resetting unknown E-Tube Passkey

I just bought an e-bike from Wiggle's demo fleet and am having problems with the electronics. I think I need to do a firmware update but I can't get into the E-tube app which allows me to configure ...
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1 vote
1 answer
429 views

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

Is it technically possible to add another shifter to an already functioning Di2 setup, allowing for an extra shifter at the end of an aero extension bar, hooked up to the same junction box as the ...
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3 votes
2 answers
246 views

Gear change recording

Has anyone heard of a device that records gear changes? Like a cadence sensor or power meter, but specific to recording when you change gear. With all the data we can currently capture about our ...
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1 vote
2 answers
809 views

RPM regulation of direct hub motors

I found this bike push-trailer. Because the trailer project is open-source I discovered that the used hub motor is MUXUS XF40 (specs here) In many places on the internet a learned that if such ...
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  • 161
3 votes
2 answers
608 views

AC dyno light on battery pack?

I'm running a Supernova E3 PRO 2 of my dynohub. However I would like to use my non-dynohub front-wheel whilst still being able to use the same lights on battery power. The lights have an internal AC/...
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  • 131
2 votes
1 answer
416 views

Electronic shifting for planetary gear hub

Gear hubs are nice, but after getting a Rohloff I realized that shifting is extremely difficult and requires lots of effort. So this got me thinking: do electronic shifting systems exist for gear hubs?...
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3 votes
2 answers
3k views

Kalkhoff Agattu (e-bike) Panasonic 24v engine dead - worth repairing?

UPDATE: http://www.kalkhoff-bikes.com/en/bikes/e-bike/e-activity/agattu-impulse-8-hs-8-g-1.html I went with one of the above. It's not a 2016 model though. The Impulse 2 drive is awesome. My three ...
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3 votes
2 answers
1k views

Bosch Nyon computer -- syncs but no activities are transferred

I have an electric bike with a Bosch engine (Performance Line) and a Nyon Computer. My eBike Connect app (on iPhone) is able to connect to the Nyon (see screenshot) but no activities are ...
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  • 187
2 votes
2 answers
719 views

Bosch Nyon and W-LAN

I have an electric bike with a Bosch engine (Performance Line) and a Nyon Computer. The Nyon is not able to connect to WPA or WPA2 password protected networks. If I remove authentication on my ...
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  • 187
3 votes
1 answer
1k views

Is the XTR Di2 battery compatible with Ultegra Di2?

I'm considering installing an Ultegra Di2 groupset on a small road bike. The space below the water bottle bosses is too little to install the regular road Di2 battery, but the XTR SM-BTC1 Di2 battery ...
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  • 2,133
3 votes
4 answers
2k views

Password protect Shimano Di2?

I'm working on a bike with Shimano Di2 (electronic shifting with servo motors in the derailleurs), and I use the e-tube software on a laptop to configure it. What I would like to do is be able to ...
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  • 41
4 votes
1 answer
2k views

What does "Electronic Ready" mean on a Giant Frame?

I just purchased a 2014 Giant TCX SLR 2, and noticed in the spec sheet that the frame is "Electronic Ready" What does this mean? http://www.giant-bicycles.com/en-ca/bikes/model/tcx.slr.2/17669/73500/...
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  • 1,303
1 vote
3 answers
3k views

Lights wiring polarity and wire marking

I am re-wiring my bike lights to add a smartphone charger and improve the connections. Wires are going in pairs, one wire in a pair being marked with a white stripe. Since I am using LED lights, ...
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  • 121
3 votes
5 answers
575 views

Finding Elevation Change, any method

So, I think it'd be cool - for goal setting for example - if I could keep track of my elevation change. The problem is, the local cyclocomputers I looked at seem to use barometric pressure to ...
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  • 1,415
1 vote
2 answers
448 views

triathlon handlebars for ultegra di2

I recently bought a Canyon AL 9.0 Di2 bike and would like to mount a triathlon handlebars on it. My ultimate desire would be able to have the gear switchers both on the triathlon and the bike's ...
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  • 192
1 vote
4 answers
13k views

How long will a battery last in a Garmin GSC 10?

My relatively new Garmin GSC 10 Speed/Cadence unit has started losing connection to my Garmin 500. I'm assuming that the battery is running out, since I'm still using the original that came with it. I ...
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  • 1,611
4 votes
3 answers
1k views

Which parameters should I track with bicycle computer so I can analyze changes in my riding?

I'm building Arduino-based bicycle computer with GPS at my free time as a hobby project. So I have to find out which parameters of ride will be useful to track to see a progress (or any changes) in ...
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  • 581
9 votes
9 answers
3k views

Protecting gadgets against rain during touring

When carrying laptop / camera around I'm always stressed out when it starts raining. Living in a city one can easily avoid rain though - but on a long touring trip there will inevitably be cases when ...
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  • 251
2 votes
1 answer
304 views

Cheap energy sources for electronics during touring with low amount of sun energy?

My goal is to find a cheap energy sources for touring. I cannot use solar all the time so I am planning to get Reelights outlined here, for lights, because they are cheaper than installing a hub ...
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