Frisco E-Bike

E-Bike Parts: chargers, batteries, controllers, brakes, tires and more

Replacement parts are where mistakes get expensive. Each category explains how to identify what you have (voltage, connector, size, mount) before you buy. If your bike is misbehaving and you are not sure which part is at fault, start with an E-Bike Assessment instead of guessing.

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Battery voltage

48V (11)36V (4)52V (3)
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E-Bike Batteries

36V 10Ah Hailong Downtube Battery (generic)

Many budget 36V e-bikes and conversion kits use an unbranded Hailong-case battery, and when one dies the replacement is usually another unbranded Hailong-case battery. The listings all look alike, so the job is to match four things: 36V nominal (42V fully charged), the correct Hailong case generation, the discharge connector on your cradle, and a BMS that can feed your controller. A 10Ah pack is a modest capacity, suited to 250W–500W bikes that see neighborhood and short-commute duty. Choose a listing that states the BMS amp rating and ships with a charger.

Best for: Replacing a worn-out 36V Hailong pack on a budget commuter or folding bike · 36V 250W–500W conversion kits with a Hailong cradle · Riders who only need 15–25 miles of assisted range

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E-Bike Battery Chargers

36V 2A E-Bike Charger, DC Barrel Plug (generic)

Most 36V e-bikes and scooters charge through a 42V output brick with a DC barrel plug, and this is the generic replacement for that brick. The important number is 42V on the output label (10-series lithium-ion), with 2A being the standard rate. Plugs are the confusing part: 36V bikes use 5.5x2.1 and 5.5x2.5 mm barrels most often, and some use a 3-pin XLR or a proprietary plug instead. Look at your battery's charge port and your old charger before ordering, and prefer a listing that shows the plug diameter clearly.

Best for: Replacing the charger on a 36V folding or commuter e-bike · 36V conversion kit batteries with a barrel charge port · A spare for the office

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Hub Motors

36V 350W Geared Front Hub Motor Wheel Kit (generic)

A small geared front hub is the simplest conversion there is: drop the wheel in the fork, mount a battery and controller, and you have an assisted bike without touching the drivetrain. The 350W geared units are light, freewheel without drag, and climb moderately well thanks to internal reduction gears. Listings are generic, so match wheel size, fork dropout width (usually 100 mm), and make sure the kit includes a torque arm or buy one; front dropouts on aluminum and suspension forks do not tolerate motor torque well without one.

Best for: Light assist on a commuter or hybrid with a steel or rigid fork · Riders who want to keep the rear drivetrain stock · Budget conversions

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E-Bike Controllers

36V/48V 15A Dual-Mode Controller for 250W–350W Hubs (generic)

Small folding and commuter e-bikes with 250W–350W hub motors use compact 15A controllers that tuck into a frame cavity or under the rack. The dual-mode versions can run with or without hall sensors, which makes them forgiving when a hall wire has failed. Many budget bikes use a controller like this paired with a simple LED or LCD, so the catch is always the display protocol and the connector set. Buy one when your bike's original is out of stock, and be prepared to swap the display and throttle to matching parts if the protocol is unknown.

Best for: Small-motor folding and commuter e-bikes · Replacing a controller in a tight frame cavity · Bikes with a suspect hall sensor (dual-mode runs sensorless in a pinch)

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E-Bike Batteries

52V 20Ah Hailong Downtube Battery (generic)

A 52V 20Ah pack is what people buy when they want more range and a little more punch from a bike or conversion kit that can tolerate it. The 52V nominal (58.8V full) is a drop-in for many 48V controllers whose capacitors are rated for it, but not all, so this is an upgrade that requires confirmation. At 20Ah the pack is long and heavy, usually in the taller Hailong-3, DK or Jumbo Shark style case, which will not fit every frame triangle. Measure your downtube clearance before you order and expect to also buy a 52V charger.

Best for: Riders who want a long-range upgrade on a compatible 48V/52V system · Mid-drive kits (BBS02/BBSHD) that accept 52V · Larger frames with room for a long downtube case

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E-Bike Battery Chargers

52V 2A E-Bike Charger, 3-Pin XLR Plug (generic)

A 52V pack needs a 58.8V charger, and the 3-pin XLR plug is the most common fitting on the 52V Hailong and rack packs sold to kit builders. Mixing this up with a 48V charger is a classic mistake: a 54.6V charger will leave a 52V pack permanently under-charged, while a 58.8V charger on a 48V pack is dangerous. This generic 2A unit is the slow-and-steady option; heavier packs may benefit from a 3A or 5A unit if the BMS allows it. Confirm the XLR pin assignment matches your battery before the first plug-in.

Best for: 52V Hailong or rack-mount packs with an XLR charge port · BBS02/BBSHD builds running 52V · Riders who lost or wore out the original 52V charger

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E-Bike Motors

Bafang BBSHD 48V/52V 1000W Mid-Drive Conversion Kit

The BBSHD is the BBS02's bigger sibling: a 1000W nominal mid-drive with a beefier case, a 30A controller, and a reputation for taking abuse that the BBS02 would not survive. It is the pick for heavy riders, cargo hauls, steep terrain, and fat-bike conversions, and it is happy on 52V packs. The trade-offs are weight, a wider Q-factor at the pedals, and more chain wear than any hub motor. Like the BBS02, it ships as a kit without a battery and needs a threaded bottom bracket shell in the matching width.

Best for: Heavy riders and cargo conversions · Fat bikes (100/120 mm shell versions) and steep hills · Riders who want more headroom than a BBS02B

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Quick finders

Jump straight to what fits your bike

Find a charger by battery voltage

The charger must match the pack: 36V → 42.0V, 48V → 54.6V, 52V → 58.8V output.

36V (1)48V (2)52V (1)

Find a battery by voltage

Match voltage first, then mount style and connector.

36V (1)48V (1)52V (1)

Find a controller by voltage

Controllers and displays are usually paired — confirm the protocol.

36V (1)48V (2)

Find a tire by size

Size is printed on the sidewall (e.g. 20×4.0, 26×4.0, 27.5×2.4, 700×38c).

20x4 (1)26x4 (1)27.5 (1)700c (1)

Find a tube by size

Match the tire size and the valve type (Schrader vs Presta).

20x4 (1)26 (1)26x4 (1)700c (1)

Brake pads by brake type

Pad shape depends on the caliper model — check yours before ordering.

disc (3)

By connector / plug

XT60, Anderson, Julet/Higo, DC barrel, XLR…

julet (3)xlr-3-pin (2)dc-barrel-5.5x2.1 (1)dc-barrel (1)julet-3-pin (1)xt60 (1)anderson (1)

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E-Bike Parts by category

Grouped the way a shop is organized. Each category page has buying notes, compatibility tips and its own filters.

Electrical10 categories

E-Bike Batteries

3

Replacement and spare lithium packs — match voltage, mount and connector.

E-Bike Battery Chargers

4

Replacement chargers — voltage, amperage and plug type must match your pack.

E-Bike Controllers

3

The brain between battery, motor, throttle and display.

E-Bike Displays

3

LCD/LED displays and replacement screens matched to your controller protocol.

E-Bike Motors

2

Replacement hub and mid-drive motors and conversion kits.

Hub Motors

2

Front and rear geared/direct-drive hub motors and wheel kits.

Mid-Drive Components

2

Chainrings, kits and service parts for mid-drive systems.

Wiring Harnesses

2

Main cables and extension harnesses for display, throttle and brake sensors.

Connectors & Plugs

3

XT60/XT90, Anderson, Julet/Higo waterproof connectors and battery discharge plugs.

Replacement Screens

2

Screens and protective covers for common display models.

Controls2 categories

Throttles

3

Thumb and twist throttles — connector and voltage signal must match.

Pedal Assist Sensors

2

Cadence and torque sensors that tell the controller you are pedaling.

Brakes4 categories

E-Bike Brake Pads

3

Disc pads in the right shape and compound for heavier, faster e-bikes.

Brake Rotors

2

160/180/203 mm rotors — check mount type (6-bolt vs Centerlock).

Brake Levers

2

Mechanical and hydraulic levers, including e-bike levers with motor cut-off sensors.

Hydraulic Brake Components

3

Calipers, hoses, olives, bleed kits and mineral oil / DOT fluid.

Wheels & Tires5 categories

E-Bike Tires

4

E-bike rated tires with puncture protection in the common 20×4, 26×4, 27.5 and 700c sizes.

Inner Tubes

4

Schrader/Presta tubes, thorn-resistant and sealant-filled options.

Tubeless Components

2

Sealant, valves, rim tape and plugs for tubeless setups.

Wheels & Rims

2

Replacement wheels and rims, including motor-compatible dropout widths.

Spokes & Nipples

2

Spokes sized for hub-motor flanges and heavy e-bike loads.

Drivetrain6 categories

Cassettes

2

7–12 speed cassettes; freehub standard must match your wheel.

Freewheels

2

Thread-on freewheels common on hub-motor e-bikes (often 7-speed).

E-Bike Chains

2

E-bike rated chains with stronger plates; match your speed count.

Derailleurs

3

Rear derailleurs, hangers and shifters for common e-bike drivetrains.

Cranksets

2

Cranks, chainrings and bottom brackets — including PAS-compatible options.

Pedals

2

Flat, wide-platform and folding pedals with grip for commuting.

Cockpit & Comfort8 categories

E-Bike Lights

2

Headlights and taillights — battery-powered or wired to the main pack.

Fenders

3

Full-coverage and fat-tire fenders sized to your wheel and tire width.

Racks (Parts)

1

Front and rear rack hardware for commuter and cargo setups.

Kickstands

2

Heavy-duty single and double-leg stands rated for e-bike weight.

Seats & Saddles

2

Wide comfort saddles, suspension seats and replacement covers.

Seat Posts

2

Suspension and rigid posts — check diameter (27.2, 30.9, 31.6 mm).

Handlebars & Stems

2

Riser, swept-back and adjustable stems for a more upright fit.

Grips

2

Ergonomic and lock-on grips for numb-hand relief.

Buyer guides

Common problems