Velotric Discover 3: parts and specs

This page lists the common replacement parts for the Velotric Discover 3, the hub motor commuter sold from 2025 in regular and large sizes. Specs are for the stock bike as sold, read Nov 9, 2026; check your own bike before you buy. Full specs are on Velotric's Discover 3 product page. The mid-drive Discover M has its own parts page, and the earlier Discover 2 has its own page too.

Parts list

• Tire: Kenda 27.5" x 2.4" puncture resistant e-bike tire. Use the pressure range on the sidewall.
• Brake rotor: 180 mm front and rear.
• Disc brake caliper: Tektro hydraulic.
• Brake lever: aluminum levers with power cutoff.
• Chain: KMC 8-speed with a 46T narrow wide chainring and 170 mm cranks.
• Freewheel: 8-speed, 11 to 40T, with a Shimano 8-speed derailleur. It isn't published whether this is a freewheel or a cassette, so check before ordering.
• Hub motor: 48V rear hub, 750 W nominal, 1100 W peak, 75 Nm.
• E-bike display: 3.5" full color with Bluetooth and NFC and an adjustable angle.
• Throttle: removable trigger throttle.
• Pedal assist sensor: torque and cadence sensing (SensorSwap).
• E-bike charger: 48V, 3A. Velotric's charger page has a Discover 3 option at $54.99, with Standard and Slim versions, $54.99 to $69.99 across versions, read Nov 9, 2026.
• E-bike battery: 48V, 15.2Ah, 730 Wh, IPX7, UL 2271, Samsung or LG 21700 cells. Velotric's Extra Battery Pack is $499.99 for the Discover 3 standard battery and also has a 16.7Ah (801.6 Wh) long range option, read Nov 9, 2026. Velotric's Battery Terminal Cover fits the Discover 2, Discover 3, Discover M, Summit 1, Summit 2, Nomad 2, Nomad 2X and GoMad, $30.99, sold out, read Nov 9, 2026.
• E-bike lights: 500 lumen integrated front light; rear light with brake and turn signals in the rack.
• Grips: ergonomic lockable grips.
• Pedals: plastic.
• Saddle: Velotric ComfortMax Gen 3, 230 mm wide. Velotric's ComfortMax Saddle is $45.99 and fits every Velotric e-bike except the Summit 1, read Nov 9, 2026; it doesn't say which generation, so confirm with Velotric.

Tools for common jobs

• Tire levers: getting the 2.4" tire off for a flat.
• Floor pump with gauge: filling to the sidewall range.
• Tire pressure gauge: checking pressure before rides.
• Hex keys: the front wheel uses a 15 x 110 mm thru-axle; stem, seatpost and rack bolts.
• Axle nut wrench: removing the rear hub motor wheel; the nut size isn't published, so measure yours.
• Torque wrench: axle, stem and pedal bolts to the values in your manual.
• Chain checker: measuring wear on the 8-speed chain.
• Chain tool: fitting a new chain.
• Chain lube: regular chain care.
• Brake pad spreader: keeping the Tektro pads apart with a wheel out.
• Brake bleed kit: bleeding the Tektro hydraulic brakes. See bleed Tektro hydraulic brakes for the fluid.

Where to buy

• Velotric's charger page, Extra Battery Pack, batteries and chargers listing and accessories and parts listing, read Nov 9, 2026.
• Velotric support for the tire, controller, display and brake parts. Have your frame size ready.
• Independent sellers: parts suppliers.
• A shop can order and fit parts: find a shop.

Common repairs

• Velotric troubleshooting and motor not responding when powered on
• Fix a flat on a rear hub motor wheel and replace disc brake pads
• Bleed Tektro hydraulic brakes and check and replace a chain

Sources

• Discover 3 product page, velotricbike.com
• charger page, velotricbike.com
• Extra Battery Pack, velotricbike.com
• batteries and chargers listing, velotricbike.com
• accessories and parts listing, velotricbike.com
• Battery Terminal Cover, velotricbike.com
• ComfortMax Saddle, velotricbike.com

Stuck after these checks? Find a shop near you.