Hiboy S2 and S2 Pro: parts and specs
Replacement parts for the Hiboy S2 and S2 Pro from Hiboy's own store: honeycomb tires and the S2 Pro rear wheel, the shared disc brake and rotor set and brake cable, separate chargers, and both batteries, with prices read Nov 9, 2026.
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This page lists the common replacement parts for the Hiboy S2 and S2 Pro. Specs are for the stock scooters as sold; check your own scooter before you buy. The two share the brake parts but not the charger, battery or wheels. Hiboy marks most parts as non-returnable, so confirm fit first.
Photo needed: A Hiboy S2 rear wheel, showing the disc brake and the honeycomb tire.. Add one
Chargers and batteries on this list must match this exact model, and they are fitted at the external charge plug or by a pro. Never open the battery, controller, motor or display. For charging trouble, start with battery won't charge and e-bike battery care.
Parts list
- Tire: S2: 8.5-inch honeycomb. S2 Pro: 10-inch honeycomb. Honeycomb tires are airless, so there is no tube to patch. Hiboy sells whole replacement wheels for each model, such as the S2 Pro and KS4 Pro rear wheel, $34, read Nov 9, 2026.
- Brake rotor: Hiboy's S2, S2 Pro, KS4 and KS4 Pro disc brakes and disc brake rotors, $25, in stock, read Nov 9, 2026. Check the rotor size on your scooter. Hiboy also sells an S2 and S2 Pro electronic brake.
- Brake cable: Hiboy's brake cable fits the S2, S2 Pro, V2, KS4 and KS4 Pro, $21, in stock, read Nov 9, 2026.
- E-bike charger: S2: Hiboy's charger for the S2, KS4 and S2 Lite, $26, read Nov 9, 2026; match the output on your original charger's label. S2 Pro: Hiboy's S2 Pro, KS4 Pro and U2 charger is 42.5 V, 2.0 A, $32, in stock, read Nov 9, 2026.
- E-bike battery: S2: Hiboy's S2 battery, 36V 7.5Ah (270 Wh), $134, read Nov 9, 2026. It does not fit the S2 Lite or S2 Pro, so email your serial number to Hiboy support to confirm fit before buying. S2 Pro: 11.6Ah. Hiboy's S2 Pro and KS4 Pro battery is $184, sold out, read Nov 9, 2026.
Tools for common jobs
- Hex keys: to fit the disc brake caliper and rotor set and the handlebar parts.
- Cable cutters: to trim a new brake cable after you set its tension.
- Multimeter: a shop or careful owner can confirm the S2 Pro charger puts out close to its 42.5 V rating. See check your charger.
Where to buy
- Hiboy's own S2 parts page and S2 Pro parts page, which also list a tool kit for the S2, S2 Pro, KS4 and KS4 Pro.
- Independent sellers: see where to buy e-bike repair parts.
- A shop can order and fit parts: find a shop.
Common repairs
- Hiboy scooter troubleshooting and S2 and KS4 error codes
- Error E2, throttle, error E3, display communication, error E5, low voltage and error E7, motor hall
- Adjust mechanical disc brakes and replace disc brake pads
- Battery won't charge
Sources
- S2 parts page, hiboy.com
- S2 Pro parts page, hiboy.com
- hiboy.com
- charger for the S2, KS4 and S2 Lite, hiboy.com
- S2 Pro, KS4 Pro and U2 charger, hiboy.com
- S2, S2 Pro, KS4 and KS4 Pro disc brakes and disc brake rotors, hiboy.com
- brake cable, hiboy.com
- S2 battery, 36V 7.5Ah (270 Wh), hiboy.com
- S2 Pro and KS4 Pro rear wheel, hiboy.com
- S2 Pro and KS4 Pro battery, hiboy.com
Stuck after these checks? Find a shop near you.
If these steps didn't fix it, find a shop near you in our partner network. For battery or wiring trouble, look for shops marked Battery and electrical.
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