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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All e-bike parts

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Battery voltage

48V (11)36V (4)52V (3)
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ThrottlesFeatured

Thumb Throttle with 3-Pin Julet Waterproof Connector (generic)

Most modern kit bikes and a lot of budget production e-bikes use a hall-effect thumb throttle with a three-wire lead: power, ground and signal. When the throttle dies, a generic replacement with the same connector usually plugs straight in, which is why the 3-pin Julet (Higo-style) waterproof version is the best-selling type. Before buying, confirm that your throttle lead uses the small 3-pin waterproof round plug and note whether it is male or female; a photo of your old throttle next to the listing saves a return.

Best for: Replacing a dead thumb throttle on a Julet-connector kit · Riders who prefer a thumb paddle to a twist grip · Bikes running KT and similar controllers with waterproof harnesses

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Sold on Amazon

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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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Sold on Amazon

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Connectors & Plugs

Anderson Powerpole 45A Connectors (Housings and Contacts)

Anderson Powerpoles are the modular red-and-black connectors used on many higher-end kit batteries and on the discharge leads of some production e-bikes. The 45A contacts suit 10–12 gauge wire and the housings snap together into a keyed pair. They are crimped rather than soldered, which some builders prefer, but they need the proper crimper to be reliable; a poorly crimped Powerpole is a heat source. Buy genuine Anderson housings and contacts — the clones fit poorly and the contacts lose spring tension under vibration.

Best for: Replacing or extending Powerpole battery leads · Builders who prefer crimp connections to solder · Making a second charger or discharge lead

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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