Questions tagged [electric-bike]

Electric Bike (e-bike) specific issues, including batteries, controllers, chargers, and motors -- as well as the legal or social issues surrounding their use. Not for liquid fuel bike kits.

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Locking option for a 100mm quickrelease?

I recently got a Ride1Up LMT'D, and it came with a quick release for the front wheel. According to their support, it's 100mm wide, and I can't seem to find a 100mm pinhead or similar product :( Any ...
Yuvi's user avatar
  • 111
3 votes
2 answers
124 views

Cruiser handlebar rotating because clamp not strong enough

My new cruiser handlebars rotate no matter how much I tighten the clamp on my electric bike. The bike is a Lectric XPremium: https://lectricebikes.com/products/xpremium-black Here is the handlebar: ...
jon_le's user avatar
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0 votes
0 answers
52 views

Two click sound when pedaling, chain delayed engagement

Hi All! New owner of Giant Explore E+ here. Just into the first 100 miles. I noticed my bike is making a clicking sound when I start pedaling from static or freewheeling. This happens both when motor ...
rigor's user avatar
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3 votes
0 answers
68 views

What kind of Julet cut off plug is this?

I own a NCM Moscow that uses a Tektro EL555-RT with this Julet 2pin connector I would like to replace the braking system with a hydraulic one however I simply can't find brakes with this connection, ...
Sandro Antonucci's user avatar
3 votes
1 answer
233 views

Full face helmet on E-bike

I am thinking to try a full face helmet on my E-bike for cold weather commuting. The main reasons would be the ones people consider for using the skiing helmet (a summer optimized helmet is too cold ...
nightrider's user avatar
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1 vote
1 answer
45 views

I have a still boxed Viribus 26" rear-wheel ebike kit - I'd like to remove its pre-fitted gear cogs and fit wheel with motor to front forks instead

...the Viribus kit's motor(kit bought via Amazon) is of the slim but wide-diameter kind. My eyes and calipers suggest to me that if the gear cogs are removed the motorised rear wheel axle should quite ...
Paul Govan's user avatar
4 votes
3 answers
78 views

Best type/designation of 2-strand wire to buy in bulk for generator and ebike lights

As a US-based shop mechanic, every time I try to buy 2-strand wire that can do the same things as what comes with generator and ebike lights, it gets deceptively complex. A lot of what's out there ...
Nathan Knutson's user avatar
1 vote
1 answer
51 views

Can I add a front shock or suspension to my Retrospec e-bike?

Is there a way to add a front shock/suspension to my Retrospec Valen Rev bike?
Judit's user avatar
  • 11
2 votes
3 answers
1k views

E-bike motor stopping momentarily during steep climbs

I have a Batavus Zonar 2020 e-bike, Yamaha motor, 10 gear cassette, 5500km of use. Recently the motor has stopped working momentarily during very steep climbs - it just shuts off for a second then ...
Amarth's user avatar
  • 171
-2 votes
1 answer
79 views

Carrera impel IS1 scooter

customer brought in carrera impel IS1 scooter and its pretty new. Max speed should be 15.5mph at the moment it goes just under 10mph. New motor, new ECU been fitted. Is it something to do with the ...
Virmantas's user avatar
2 votes
1 answer
87 views

Using 4 inch tube for 3 inch wheel

fellow bicyclists. I purchased an e-bike (Clou Tumbler) and its back wheel is 20x3.0 I overpumped air into it and the tube blew up, so I've been trying to find a replacement, only to realize its ...
Sergei's user avatar
  • 21
3 votes
3 answers
907 views

Find replacement battery for this e-bike

My ebike battery totally died today. I can't find the model number for the battery as it is not written anywhere. Here are the pictures:
user1034912's user avatar
0 votes
2 answers
363 views

SHIMANO STEPS(VOODOO ZOBOP 2019) ERROR E014 best solution?

customer dropped his voodoo zobop E7000 2019 bike, previously had E013, after huge firmware update E013 changed to E014 error code, apparently ECU not receiving signal from the battery...!? Would ...
Virmantas's user avatar
3 votes
2 answers
355 views

How can I increase ebike drivetrain reliability?

I'd like to improve reliability and have fewer problems with my drivetrain. What more can be done? I have an electric bike. I only ever use the six smallest sprockets on the 12-speed cassette, even ...
Tom Brossman's user avatar
1 vote
0 answers
199 views

Luckeep ebikes problems

Anyone know why my ebike would be only going like 8 miles an hour? Or how can I check torque sensor to see what's wrong? It has worked fine since I got it but after last charging it today when I got ...
Jerome Cantrell's user avatar
1 vote
1 answer
143 views

Which mid drive motors use the same frame interface?

One concern with mid drive e-bikes is that if the motor breaks in ten years, probably there is no exact replacement available. But do the manufacturers keep the same interface for their different ...
Nobody's user avatar
  • 1,760
5 votes
1 answer
188 views

Opening up a geared hub motor

I have a 10 year old eWind Classic, and the hub motor makes horrible noises when under high load. It used to be silent. So I want to replace the planetary gears and bearings. Printed on the hub motor ...
Bram's user avatar
  • 337
3 votes
2 answers
496 views

Pros and cons of retrofitting a pedelec vs. buying a built-in pedelec

I'm considering to buy a pedal-assist electric bike with a mid-drive motor. I'm worried that if and when the drive unit fails, I might have to replace the entire bike, such as indicated in this ...
gerrit's user avatar
  • 3,637
5 votes
2 answers
286 views

How servicable are older e-bikes?

I am considering to purchase a bicycle that includes an electric assist with a Shimano E6100 engine. I have not owned any bicycles with electric assist before, and I'm worried about serviceability. ...
gerrit's user avatar
  • 3,637
16 votes
8 answers
2k views

Is a dropper post a good solution for sharing a bike between two riders?

We have an e-bike with a step-through frame that's shared between two riders with fairly different heights (5'8" and 6'2"). It's used for commuting, kid-toting, and general short-mileage ...
segfault's user avatar
  • 161
3 votes
1 answer
42 views

Front hub motor makes clacking noise only when nut tightened

I have a Bafang SWXK2 e-bike front hub motor. It has been use for 7 years, about 10 000 km ridden and has worked well so far. But now it is making a clacking noise. Symptoms: Clacking noise ...
jpa's user avatar
  • 1,727
25 votes
4 answers
2k views

What characterizes a future-proof ebike drive system?

Ebikes had their origins in modular drive systems that were assembled by enthusiasts and specialty companies choosing their own motors, batteries, battery controllers, motor controllers, and displays. ...
Nathan Knutson's user avatar
-1 votes
4 answers
121 views

Provide 220v to motorhub 36v 500w using a voltage regulator

The idea is to solar power a bike without battery using a grid-tie inverter that provides 220v and then regulate voltage to link directly with motorhub. Possible ? Risky? Dumb? Thanks for your answer!
Javi's user avatar
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4 votes
1 answer
170 views

Why do my Urbanbiker Viena electric bike batteries keep failing?

Around late 2019, I bought an Urbanbiker Viena new off Amazon for my daily work commute (around 15km/day at that time, now it’s a bit lower at about 10km/day). After about 4000km, my (first) battery ...
breversa's user avatar
  • 143
8 votes
6 answers
2k views

Using an e-bike as part of an endurance training?

I recently bought an e-bike and use it much more than my conventional "fun bike" (still need to do some maintenance on it), and was wondering how complementary it could be for endurance ...
Renaud's user avatar
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2 votes
1 answer
178 views

Is it safe to charge my ebike lifepo4 battery this way?

I have an 8S LiFePO4 battery pack for my ebike project which I tried to charge using my suspicious lithium battery charger. The charger applied a voltage slightly higher than the battery voltage at ...
Akshat Sharma's user avatar
1 vote
0 answers
45 views

Currie mid-drive Pedal assist works sporadically

I have a Raleigh Route with a Curry Electro Drive trans x 350 watt pedal. Assist only motor. Pedal assist starts and stops almost immediately over and over the entire time I ride. Sometimes it doesn't ...
Parrish Shane Ward's user avatar
9 votes
2 answers
4k views

Where is the speed sensor on my e-bike?

The speed indication on my ebike is acting up - most of the time it's showing a correct reading, but it occasionally drops to impossibly low values like 2 km/h for a few seconds while riding, then it ...
user4520's user avatar
  • 573
1 vote
1 answer
377 views

How to install a Bafang brake sensor on a road bike with drop bars and V brakes?

I'm planning to install an e-bike kit on a road bike with drop levers. You must install a sensor for the motor to stop providing power during braking. However they are all used for normal brakes. ...
nammerkage's user avatar
5 votes
3 answers
305 views

Electric bicycle frequently stops working when slope is too high. Cannot find notice

I use my mom's no-name electric bicycle for my daily commute. It is only 3-4 kilometers but there is a big slope. The bicycle's brand and model is Opus E-MOTION, but I cannot find anything online ...
C. Crt's user avatar
  • 151
5 votes
1 answer
827 views

How do I fit an e-hub motor axle that is too big?

I am converting my wife's Giant aluminium frame bike to electric by fitting a rear hub motor. The problem that I have encountered is that the e hub motor axle is much bigger than the original wheel. I ...
Tigertone's user avatar
4 votes
1 answer
265 views

eBike torque sensors: Are hub systems capable of the same ride feel as mid-drive?

There are two basic types of ebike controller - cadence or torque sensing. Typically mid-drive ebike systems use torque sensing to control the motor, and cheaper hub drive systems often use cadence ...
SamA's user avatar
  • 2,716
2 votes
1 answer
198 views

MTB rear triangle specs for given frame / e-bike build

A used 27.5 19" e-bike frame (Bosch motor+battery model) (only front half) is advertised under the brand "Kilimanjaro e-tec 2.0", whatever. Its rear triangle, however, is missing and I ...
bozobkr's user avatar
  • 21
1 vote
1 answer
186 views

My bike has a 10 speed cassette. MTX hub motor takes 9 speed cassette can I remove last cog of my cassette without issues?

I need some advice. I have a Giant Anthem 2012 dual suspension bike. And want to put a 1500 watt 26" MTX cassette type rear hub motor onto it. I believe the MTX wheel can take up to a 9-speed ...
Chris Jamieson's user avatar
3 votes
1 answer
338 views

Does changing a chainring on a e-bike requires a "firmware change"? (setting or update)

I noticed an interesting "contradiction" in the manual of an e-bike: on one hand it states that the frame can accomodate chainrings between 30T and 44T, but on the other hand in another ...
Renaud's user avatar
  • 17.6k
1 vote
1 answer
90 views

Can I straight-swap my cassette 10 cog wheel with a ebike hub motor free wheel 7 cog wheel?

I have a Giant Anthem bike that has a 10-cog cassette wheel. And I have just purchased an e-bike hub motor that is a freewheel with seven cogs. Can I go ahead and fit it without any problems?
Chris Jamieson's user avatar
17 votes
5 answers
5k views

What is an SUV bike?

Recently, I've started to see the term "SUV bike" in different contexts. They seem to be referring to expensive e-bikes (pedelecs or s-pedelecs, either freight bikes or regular), with price ...
gerrit's user avatar
  • 3,637
7 votes
6 answers
3k views

Rationale behind dropper posts on "SUV" e-bikes

I noticed that the upper versions of some recent "SUV" e-bikes (also called touring/trekking, but that denomination is misleading) are now proposed with dropper posts - to give examples: ...
Renaud's user avatar
  • 17.6k
19 votes
5 answers
4k views

The stock brakes on many e-bikes may be inadequate. What changes would make them adequate, and at what cost?

Note that some links in this question go to sites with a metered paywall, i.e. you can access something like 4-5 free articles per month. While the question mentions a bike manufacturer, the problem ...
Weiwen Ng's user avatar
  • 29.7k
1 vote
1 answer
129 views

Luna eclipse 42T chain ring and Shimano Linkglide is there a chain that fits both?

My cargo e-bike has a Luna Eclipse 42T chainring with a narrow-wide pattern. Lunacycles states the chainring will work with any 8, 9 or 10 speed chain and that an 11 or 12 speed chain will not work. I ...
K Beiske's user avatar
20 votes
11 answers
8k views

I would like a one-mile-range e-bike: why aren't there any?

I have a 3 mile daily commute that I bike in Toronto. I enjoy it very much, but there are times I'd like a bit of an e-boost; for example when a car cuts me off while I'm in the middle of climbing a ...
user68083's user avatar
  • 233
0 votes
1 answer
437 views

Why is my ebike Shimano display dead?

The bike battery is fully charged. When I plug-in the display, the screen does not come on at all.
francesca's user avatar
1 vote
1 answer
92 views

Is it possible to use a disc front brake and a regenerative rear brake system for electric Catrike recumbent?

I have a Catrike Villager tadpole recumbent with a single lever to operate the two disc brakes on the front wheels. I want to put a direct-drive hub motor on the rear and utilize regenerative braking. ...
David P's user avatar
  • 11
1 vote
2 answers
113 views

How do I make my ATLAS BEACH X TYPE BIKE Electric and built for winter driving?

Front Wheel: 26" x 1.75 x 36H x 12G Alloy-Cruiser, Bolt-On Rear Wheel: 26" x 1.75 x 36H x 12G Alloy-Cruiser, W/Shimano Coaster Brake Front Hub: Alloy Bolt-On, Sealed, 36H x 12G x 3/8" ...
Jaymes Peters's user avatar
3 votes
2 answers
423 views

Can electric trike be made stable?

I bought a Viribus electric trike, which came unassembled. My son told me not to try it by myself (76-yr-old grandma, not as strong as I once was). I have to say he was not entirely wrong - it was ...
trikey's user avatar
  • 31
0 votes
1 answer
195 views

Is there a brand of bicycle named BUILD

A bicycle had passed my home today rather quickly. The frame had the word 'Build' painted on it. I am assuming it is an electric bicycle, but I would like to know more about this bike. Is 'Build' the ...
user66963's user avatar
10 votes
5 answers
3k views

How important is to have many gears on a e-bike?

I am planning to buy an e-bike and I have been wondering what’s the right thing to choose between: 1 X 8 traction, 29”, 36V • 16Ah → 576Wh battery, or 3 X 9 traction, 27.5”, 36V • 10.4 Ah → 374Wh ...
Ionică Bizău's user avatar
1 vote
1 answer
63 views

Communication with electric and bluetooth wheel (imortor)

I would like to know about the specs, standard or protocols to communicate through Bluetooth with the controller embedded in the wheel. By default the wheel can be managed through BT with a very poor ...
Daniel Perez's user avatar
3 votes
2 answers
400 views

Changing front wheel for one with slightly wider rims on an E-bike?

I need to replace the front wheel on my E-bike (2016 Batavus Razer, original wheel is 622 x 15C Rodi in 6063 alloy, 36 spokes, 'V' shaped rim profile) I believe Rodi supplied Batavus with wheels for ...
Geo Bristol's user avatar
1 vote
1 answer
257 views

Can the Grin Technology phaserunner series be used in total headless mode? (No display, POS sensor or torque sensor, bluetooth & throttle only)

One of my old e-bike has a broken component and is subjected to upgrade, as most of the vendors have either disappeared or declare the component as end-of-lifecycle. I'm considering Grin PhaseRunner ...
tribbloid's user avatar
  • 119

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