Honeywhale B20: a light, foldable e-bike for everyday use

Quick summary

Foldable and light, at 21 kg.
440 W motor and a 36V 7.8Ah battery.
Rated 4.7 out of 5 across more than 1,100 reviews.

The B20 is the compact option on the list: light, foldable and with dual disc brakes. It suits people who need to store the bike in a small space or take it inside at home and at work.

Specs: Honeywhale B20

Brand	Honeywhale
Motor	440 W
Battery	36V 7.8Ah, lithium-ion
Advertised range	35 km
Top speed	32 km/h in the spec sheet; the title says 25 km/h
Weight	21 kg
Max load	120 kg
Wheel size	14 inches
Brakes	Disc, front and rear
Foldable	Yes

Data from the Mercado Livre listing on Oct 16, 2026. It varies from seller to seller, so confirm on the listing you decide to buy.

What we like and what we don't

Strengths

Light and foldable, easy to store
Disc brakes on both wheels
Tail light that flashes when braking
Lower price than the 1,000 W bikes

Weaknesses

7.8Ah battery limits the range
The listing says 25 km/h in the title and 32 km/h in the spec sheet
Smaller motor, with more limited hill climbing
Maximum weight of 120 kg

Who it's for

Good for: Riders with little space who want a light bike for short trips.

Maybe not for: Riders who face steep hills or need more than 30 km of range.

What buyers say

4.7/5

1,127 reviews on the listing we analyzed
Summary by our team. See them all on Mercado Livre.

The battery lasts a long time on short use, with few recharges a week
Praised for its size and ease of use
Lasts all day on city trips

Frequently asked questions

Is the B20 foldable?

Yes, the spec sheet says it is foldable and weighs 21 kg.

What is the B20's top speed?

The spec sheet says 32 km/h. The listing title says 25 km/h, so it is worth confirming with the seller.

Verdict

The B20 is the pick for people who value lightness and space. It delivers less motor and battery than the 1,000 W bikes, and that shows in the price. For short, flat trips, it does the job well.