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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.

14 votes
Accepted

Can I govern an ebike down to a lower speed?

The answer to the yes-no question you asked is yes, some controllers such as many Bafang models are fully programmable by the end user. My unsolicited input on the question you didn't ask: As an e-bik …
Affe's user avatar
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8 votes
Accepted

Why are electric bikes ranked on torque ratings?

Addressing just the actual question as stated to avoid a 3,000 word essay: With this in mind, how to interpret the advertised torque for a bike with a mid-drive hub, since it's heavily dependant on t …
Affe's user avatar
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6 votes

EBikes - is torque a good predictor of how easy it will feel to go uphill?

(tl;dr, higher torque motor doesn't make "given hill" easier for you, it handles steeper hill before falling off in its ability to help. Going up a gentle hill on a high torque bike is not easier tha …
Affe's user avatar
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4 votes

Looking for a waterproof electrical bicycle, is there such thing as ip68 for electrical bicy...

None of the name brand e-Bike motor manufacturers makes a motor intended for use in a bicycle that is also rated for continuous immersion in water. (IP67 is a rating that it works when completely und …
Affe's user avatar
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4 votes

E-bike battery charger making horrible noises, only works certain outlets?

Even though the design may be CE compliant, the unfortunate reality is that cheap manufacturers will still leave out "unnecessary" circuit components or replace them with fake ones when actually build …
Affe's user avatar
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3 votes

Full face helmet on E-bike

I am a Canadian commuter. I don't recall ever seeing any of my peers wearing downhill helmets in the winter. Maybe once in a while you see someone with a full face snowboard helmet on, but I would as …
Affe's user avatar
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2 votes

Who grants ebike-ready certifications for tires (aside from manufacturers)?

For the name brand tires that are certified 50km/hr there is an actual international standard that the tire manufacturer is certifying against. These are tires that are built to the UNECE motor vehic …
Affe's user avatar
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2 votes

Riese Muller with Bosch performance CX not engaging immediately

The 2020 Bosch performance CX firmware update does change the algorithms for adaptive support in addition to increasing low-cadence torque. It intentionally 'ramps up' the amount of assist more slowl …
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1 vote
Accepted

Proper dedicated ebike frame with motor in the middle or the diy swap the wheel approach

You're asking two distinct questions here. 1) DIY vs Store Bought. Do a DIY if you're mechanically inclined and will enjoy the project as hobby time. Do a DIY if you have some classic frame you love …
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1 vote

Will a 73 inch long electric bike fit with 28 inch wheels

You can find the specification sheet for the racks here: https://www.sportworks.com/assets/files/Model-Overview.pdf The maximum wheelbase (distance between front and rear dropouts) supported is 44" …
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0 votes

Any tuned E-bike with good support at high cadence high speed?

I do not have this experience with my retail stock 2018 Bosch CX bike. Peak assist in a climb definitely happens around a 90ish cadence. Perhaps the 'tuning' method applied isn't handling this situa …
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