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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.

1
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1answer
154 views

Can a 26 Inch Controller Drive a 20 Inch Wheel?

My situation: A Bakfiets with a bad controller (hills too much for it I think) Supplier has offered to send me a new controller Supplier has also offered to supply a whole new separate battery - ...
7
votes
1answer
418 views

Why do most E-MTBs have 1x drivetrains?

I'm contemplating about getting an electric assist MTB but as much as I can see all (or at least majority) of e-bikes are equipped with 1x transmission. Is there a reason why there are no e-bikes ...
2
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1answer
132 views

What is this … electrical bike's setup? Is there a particular brand or model name for this? how to replace its battery?

Just bought it from someone, interested to get it fixed. he said it just needs to replace battery, I doubt it (after numerous experience with asking the sellers "what is wrong with the bike" and ends ...
2
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1answer
190 views

YouE planetary motor is having problems how do I pinpoiont the problem?

I was riding then I turned a corner went to turn the throttle suddenly it makes a loud grinding noise and is unable to accelerate. I got the motor open and it can only start turning when I roll the ...
2
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2answers
519 views

Shimano Steps E6000 battery charge percentage falls abruptly

When the battery charge gets to about 20-25% it drops abruptly to 5-10%. The steeper the hill and higher the load drop percentage is higher. Examples: from 25% to 6% steep hill from 13% to 8% small ...
4
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2answers
2k views

What is the process of adding a light to a Yamaha PW equipped ebike?

I recently got a bike with a Yamaha PW system. The bike computer has a light on/off button but the bike itself has no light and I want to add one. How do I do this? From what I understand, I need a ...
5
votes
1answer
156 views

E-bike drivetrain demagnetization

I've heard conflicting reports that demagnetizing drivetrain parts to prevent metallic debris sticking is a real thing I'm supposed to care about when servicing e-bikes, but I can't find anything ...
39
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10answers
13k views

Why do the majority of people on an ebike ride at a fairly low cadence?

Around the place where I live the electric bicycle is gaining popularity and it's easy to pick those on such bike from far away not just from posture (rather stiff upper body even on steep hills) but ...
1
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1answer
396 views

Retrofitting disc brakes on 2000 Specialized Stumpjumper FSR XC?

I just got an old 2000 Specialized Stumpjumper FSR XC that still uses rim brakes. I also have this 160mm rotor and this mechanical disc brake caliper. Since none of my wheels have 6 bolt holes to ...
1
vote
1answer
580 views

How do I identify the correct battery for my electric bicycle?

I would like to replace my heavy battery to a lighter one. My current battery lasts for 5 days, if I could replace it with something that can only last for a day, I'm fine with that but lighter. Is ...
5
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3answers
385 views

Experience biking with child trailer during winter?

What's your experience biking with child trailer during winter in the city? I live in Cracow, Poland. Recent winters were almost snow-less, but it's <0°C cold and slippery anyway. I am used to ...
3
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2answers
345 views

Should I lubricate a BBS01 clutch?

I am completing the rebuild of a BBS01 electric bike mid-drive motor from Bafung. Would like to lubricate and protect every part properly before reassembly. Should I lubricate the clutch and if so ...
1
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3answers
2k views

Can a road bike stand constant 40km/h for long distances?

I am planning on converting my road bike into an electrical one and I can see that I can get average speeds of 35-40kmh. So I am planning on biking long distances at this average speed. Is it safe to ...
39
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5answers
10k views

Why do e-bikes need dedicated tires?

While shopping for new tires on my bike, I saw that some dealers had a specific section for e-bike tires, where the various brands production for e-bikes was present. Why do e-bikes need dedicated ...
8
votes
2answers
2k views

Should I consider buying a velomobile as my daily commute vehicle instead of a bike? [duplicate]

What are the advantages/disadvantages between a (possibly electric) velomobile and a regular bike when in daily use?
4
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3answers
3k views

Charging eBike Battery with Solar

I need some advice / info on solar charging an eBike battery. We have two RadRovers from Rad Power Bikes. They are powered with a Panasonic Dolphin 48V, 11.6Ah Lithium-Ion battery https://www....
2
votes
1answer
182 views

Using Nylon vs. Silicone Washer on Bafang BBSHD BBS01 Mid drive E-bike Motor Assembly

Question - Can I replace the silicone washer in the BBS01 axle assembly with a like sized nylon washer? Background - I am rebuilding a Bafang BBSHD BBS01 mid drive e-bike motor assembly. I have ...
2
votes
1answer
195 views

Need help debugging ebike: Laggy motor / inconsistent behavior

My ebike has been acting weird lately, and I need help figuring out why. It's my daily driver, so I'm hesitant to turn it in for service, as that would probably take at least a month. The bike's one ...
1
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0answers
70 views

Central axis motor or wheel motor for conversion to electric bike? [duplicate]

I'm planning to convert my "mechanical" bike into an E-bike for riding long distances to work, and I would like to buy only the motor kit since I already have the bike. I can see that I have two ...
6
votes
5answers
7k views

Can I use an RC motor to make my bike electric?

I would like to make my ebike to have the minimal look, so adding big hubs or mid drive motors isn't really an option since it also costs more. I found this Keda brushless outrunner 2000w 190KV motor ...
3
votes
3answers
1k views

Can e-bikes speed up my commute? Which class?

I have a daily 15 mile commute (1-way) which takes me approximately 1hr 15 min each way if I bike (taking into account traffic signals and so on). The route is all surface roads, with some mild hills. ...
4
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3answers
734 views

How do you measure return on investment (ROI) for an electric bike?

As we consider an e-bike vs. a car purchase, I'm trying to assess return on investment (ROI). My cost factors are, in order of priority, time, money, and carbon footprint. My commute I travel 20 ...
0
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1answer
934 views

Finding the right size wheel for a electric bike kit [closed]

I want to convert my trek cross bike to a electric bike. I have 700c rear tire. The kits wheels seem to come in inches. What should I do?
1
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1answer
828 views

Pedal assist sensor possible for front wheel motor on ebike?

I'm looking into converting my current bike into e-bike. I run with IGH, so the only place for the motor is the front wheel. Is it possible to have pedal assist sensor (PAS) with this setup? I.e. no ...
0
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1answer
887 views

How to DIY electric bike modification - Schwinn 3-Wheel? [closed]

I've come across a mint condition 3 wheel Schwinn bike (big tricycle) and I'd like to modify it to be electric driven. My main focus is an efficient electric system and I would like to integrate solar ...
-1
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1answer
410 views

Strength/Safety of Suntour XCR Air RL-R/Budget Suspension Bikes

I have been riding bikes my entire life and I am now thinking of getting a new bike. Until the past year I have been riding walmart bikes and I never really thought much about the spec. I have gone ...
3
votes
1answer
4k views

How to choose the right brushless outrunner motor for e-bike project

I am planning to build my own electric bike and I have stumbled apon some confusion. I want to use brushless outrunner motors for this project as I have used these motors many times for other projects,...
1
vote
2answers
869 views

Changing wheel size when adding ebike kit to tricycle

I have a 20" wheel trike I plan to motorize. Can I add a 24" or 26" Hub front wheel motor and can I mix the front and rear tire sizes? What are the consequences for stability and cornering? I am new ...
0
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2answers
3k views

Can I fit a 26x3.5 tire on a 26x4.0 rim?

i have a sondors bike that comes with a 4.0 fat tire. i am tring to find a street tire for my fat boy i only found one and its 3.5 not 4.0 STREET TIRE
9
votes
2answers
3k views

Exceeding speed limit with Ebike, is battery affected?

I bought a ebike and happy with it. My 30 mins ride to work every day dropped to 15 mins. But according to law in country where I live motor stops when I exceed the speed limit which is 25km/h. ...
8
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3answers
1k views

Center motor ebike costs more, is it worth it?

I am 90% sure that I will buy an e-bike. Today one of my friends who owns an ebike strongly suggested that I should buy one with center motor, because they are more efficient and battery life will be ...
6
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2answers
2k views

City Bikes vs E-Bikes with baby trailer

We moved the Denmark where the bicycle roads are extremely good and there are only a few hills. Our house a bit far from the center so my wife and I will need to ride like 8-9km to city center quite ...
1
vote
1answer
506 views

Ebike gear conversion

I have a 29" mountain bike I'm going to put a motor on. I'm going to replace the back wheel with a 26" and my question is about the gears. I need two of them in the same side to freewheel ...
15
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4answers
2k views

Are electric bike speed limitations set in stone?

I'm thinking of getting an electric bike, and like most, it states the speed limit at 25Kph, which also happens to be the speed I typically cycle at. My question: is this speed set in stone? Is there ...
11
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8answers
18k views

Shimano Steps ebike E010 and E012 errors: DIY fix possible?

My Shimano Steps-powered e-bike is frequently but irregularly giving me the errors E010 and E012. In the E6000 Series Dealer’s manual and E8000 Series User's manual I found the following: E010: A ...
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0answers
56 views

Busettii electric questions

Anyone know which wires come out of this controller? One is not connected and I don't know where it goes! Thanks so much!]1
11
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3answers
1k views

Will a pedelec spoil cycling for me?

During the last few years I moved farther and farther away from work. I used to commute by bike a lot when I lived nearer to my workplace, but now it would by about 40km one way. I am thinking about ...
1
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1answer
160 views

Is it possible to mount Shimano Ultegra 6870 Di2 on a 2012 Cannondale SuperSix?

I was just wondering if it was possible to fit the 6870 Di2 on a 2012 Cannondale SuperSix ? It has no internal wiring. I think the 6870 Di2 has a new round long battery that only goes in the seat post....
1
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1answer
799 views

E Bike speeding (>32km/hr) Penalty?

In Toronto, Ontario, Canada, what is the penalty for riding an electric assist bike thatsurpasses 32 kilometres per hour on flat terrain? Also, what is the penalty for an e bike that surpasses the 500 ...
0
votes
2answers
753 views

Can anyone tell me how pedelec sensor in PAS bicycles work?

I am owner of a startup named CYKIQ in Pakistan. We just did our soft launch and got an amazing response from the customers. Out of many issues that we have solved one still remains and that is using ...
1
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3answers
622 views

Which e-bike kit should I choose? Hub vs chain driven (hilly terrain)

I am looking in buying one of these budget (I am on tight budget) kits: Chain driven kit cost $100 front wheel hub kit cost $100 My bike is multi gear and where I live there are some challenging ...
3
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2answers
2k views

Jump start electric bike?

I bought a Huffy electric bike but I don't have charger. The person at pawnshop where was bought said I can charge it with a car, like jump start.
3
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3answers
1k views

Can I use 26" electric hub wheels on a vintage road bike?

I got this old road bike that I bought for $20 and fixed up a bit. I'm having to use it for a very long commute in the meantime until I can get other transportation so I was looking at a cheap ...
1
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3answers
203 views

What are some oft-cited benefits of electric assist on a mountain bike?

Recently, electric mountain bikes have been hyped quite a lot, and I have seen a lot of them for sale at LBSs and have even seen a few "in action" despite that I never go mountain biking (i.e. I see ...
7
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10answers
4k views

Electric bike rear wheel spokes breaking

I have an electric bike with a 500w rear hub. The spokes have broken twice in the last month on the hub end of the spokes.The spokes are bent at the hub end and threaded. This is where they break. As ...
1
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1answer
125 views

E-bike battery doesn't work anymore, where do I get this specific one? [closed]

Can somebody tell me exactly what battery this is or where I can buy it? I appreciate any help a lot! If you need more information, please let me know. Edit: This is the e-bike the battery used to. ...
0
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2answers
1k views

Converting from V-brakes to Disc Brake without existing mounting holes [duplicate]

I have an Electric Bike with rear brakes which are not as strong as front disc brake (countless amount of tweaks never solved it well without rubbing the wheel too much). So, I am looking at ...
0
votes
2answers
3k views

Has anyone tried this “poor mans” homemade electric bike idea?

I have a wiper motor from some car or van that has a shaft on it. When I apply 12 volts to it, with no load on it, it seems to spin at about 125 RPMs. I vaguely remember that when I load it, it can ...
6
votes
3answers
2k views

Which front and rear lights can run while charging?

I have a 52V battery pack on my krampus, which I use for commuting to work. I plan on buying a DC-DC converter with two USB outputs to run headlight and taillight. So my requirements are mostly to ...
3
votes
2answers
2k 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 ...