EM3ev BBSHD kit

The offer

What EM3ev BBSHD kit actually is

EM3ev BBSHD kit is one configuration from EM3ev, made in China, filed here as a mid-drive. The family is BBSHD, generation Catalogue. A complete BBSHD build from a specialist kit maker: motor, named triangle pack and charger as one order.

In the box, as this record has it: BBSHD, Triangle battery, Charger, Display. Still required before the bike moves under its own assist: BSA shell, Frame that accepts the triangle. A cheaper advert for the same family name is not this list. If the battery, the charger or the throttle differs, it is a different configuration and it gets a different page.

Same 1000 W motor class as a bare BBSHD. The difference is a named pack in the offer.

The price on the card is the maker’s published figure in USD, or Maker list when no figure was published. Allowances for a missing pack, a charger and workshop time sit in the complete-cost band. They are not a second product and they are not a promise that a random pack will talk to this controller.

The bicycle

The frame this motor is asking for

EM3ev lists EM3ev BBSHD kit against Mountain, Cargo, Hybrid bicycles, for Hills, Load carrying, Touring. Wheel sizes on the card: 700c, 26, 27.5. The mechanical interface is BSA 68–73 mm. Brakes are disc.

A mid-drive takes the bottom bracket’s job. The shell width, the thread or the press-fit standard, and the chainstay clearance decide it. The bike’s own gears then multiply whatever the motor puts into the chainring, which is why a modest continuous rating can still climb if the shell is the right one.

Pedals stay. This configuration is a bicycle with assistance, not a motorcycle conversion. Sensor on the card: cadence. Cut-off on the card: not stated. Throttle: not fitted.

The numbers

1000 W is not the whole story

Continuous rated power for EM3ev BBSHD kit is 1000 W. Claimed peak is not stated separately from the continuous rating. Torque is 160 Nm. BBSHD 160 Nm class. Motor mass is not published. System mass, once the named parts are on the bike, is BBSHD, Triangle battery, Charger, Display.

Peak is a short claim. Street rules, including the Great Britain check on this site, use continuous rated power and the speed at which assistance stops. A controller that can be unlocked does not change the record of the motor as sold. EM3ev BBSHD kit is filed in the Off-road class: Above street classes. Private land and closed courses.

Off-road on this site means the published rating sits above the ordinary street classes. It is for private land and closed courses unless a specific controller is sold as a limited street version. That limited version would be its own page.

Pack and charger

The pack is part of the kit

Triangle pack is no watt-hour figure in this offer at 52 V. Lithium-ion The charger is Included charger.

Nominal watt-hours are voltage times amp-hours when both are known. That is stored energy on the label, not usable energy, and not a mileage promise. Cold, load, hills and how full you dare to run the pack all move the distance. Any range sketch on this page shows the watt-hours per kilometre it assumed.

Charge this pack with the charger named for it. The same plug on a higher-voltage brick is the wrong part. A swollen, hot, hissing or sharp-smelling pack is a stop: do not open it and do not keep charging it.

Mid-drive

How EM3ev uses this layout

Mid-drive. EM3ev BBSHD kit sits at the bottom bracket and drives a chainring, so the bicycle’s gears become the motor’s gears. Climbing in a low gear is the point. Spinning a tiny ring on the flat, at the motor’s expense, is how chains and cassettes die early.

The shell on this record is BSA 68–73 mm. Press-fit, a worn cartridge, or a carbon shell with a hopeful adapter is a workshop measurement, not a yes from the listing. Chainline is the quiet failure: the chain climbs, the stay rubs, the clutch chatters.

Cadence sensing means the motor comes in when the crank is turning and the assist level says so. It can feel like a switch. Programming the ramp is part of living with it, and a hotter programme is a different legal object from the one on this page.

The workshop

A workshop path, written as a sequence

EM3ev BBSHD kit is a workshop install in this record. Doing it yourself does not rewrite the path into a pass. It means the documented route was not the one you took, and the result stays conditional until someone competent has seen the bike.

Warranty as published: Maker warranty. Term is on the invoice.. Labour in the cost band is separate from the offer. A brake service the bike already needed, a new chain, or a hanger alignment is not folded into EM3ev’s price to make the total look neat.

The sensible order is measure, then mount, then connect, then the first assisted roll in the stand. Connectors are keyed for a reason. The torque arm, the axle nuts and the connector boots are one inspection at the end, not three trips.

After it is on

The first month, and the parts that wear

Chains and cassettes wear faster because the motor can hold a high torque in a small gear. Shift before the load spikes. A worn cassette is a workshop line, not a reason to suspect the motor first. Keep the chainring that shipped with the kit until you have a reason, in writing, to change the ratio.

Keep Included charger with Triangle pack. Store the pack cool, part-charged if it will sit, and not in a hallway that is your only exit. EM3ev’s display, if one is included, is paired to this controller generation. A screen from the next family is not a spare.

My Garage on this device can hold the configuration, who fitted it, and what was still open. That note is for you and for the next workshop. It is not a certificate. If a later notice lands on this configuration, the record is where it should show.

Read next to it

• Bafang BBS02BBafang · Mid-drive · Off-road
• Bafang BBSHDBafang · Mid-drive · Off-road
• Bafang BBS01Bafang · Mid-drive · 25 km/h
• Bafang M620 UltraBafang · Mid-drive · Off-road

From the library

• What a conversion kit actually includesA motor wheel and a complete system are not the same product. The page should say which one you are looking at.
• Watts, torque, and the sticker that does not mean rangeContinuous watts, peak watts and newton-metres describe different moments. Mixing them is how a listing looks twice as strong as the motor you will live with.
• Speed classes, from 25 km/h to off-roadThe class is a property of the kit as sold. The road you may use it on is a property of the country, and sometimes of the state or the canton.
• Bottom brackets: 68, 73, and the shells that are not BSAA mid-drive does not sit beside the bracket. It becomes the bracket. Width and thread are the fit.
• Cadence sensing and torque sensingOne motor notices that you are turning the pedals. The other notices how hard. The ride, the wiring and the price all change with that choice.
• Cargo bikes and longtailsThe motor is the easy part. The chain, the brakes and the length of the frame are the job.