Xiaomi Mi Electric Scooter 1S and Pro 2: parts and specs
Replacement parts and specs for the Xiaomi Mi Electric Scooter 1S and Pro 2: 8.5-inch tires with inner tubes at 45 to 50 psi, rear disc brake with E-ABS, the 42 V 1.7 A charger, batteries and hex key sizes.
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This page lists the common replacement parts for the Xiaomi Mi Electric Scooter 1S and Pro 2. Specs are for the stock scooters as sold; check your own scooter before you buy. Xiaomi publishes the 1S spec sheet, Pro 2 spec sheet and the 1S, Lite and Pro 2 FAQ. The two share the tire, tube, brake layout and charger, but not the battery.
Photo needed: A Xiaomi Pro 2 rear wheel, showing the disc brake and the tire valve.. 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: 8.5-inch pneumatic, front and rear. Keep both at 45 to 50 psi, check them every 20 to 30 days, and replace a tire once the tread is worn flat, checking from about 3,000 km.
- Inner tube: 8.5-inch inflatable inner tube inside each tire.
- Disc brake pads: braking is E-ABS plus a mechanical disc brake, with the disc at the rear and the electronic brake at the front.
- Brake cable: take up a loose brake at the brake line: loosen the 5 mm hex screw, pull the cable through and lock it again. Check it every 6 months.
- E-bike charger: both take 100 to 240 VAC input at 2 A max and put out 42 V, 1.7 A, 71 W. The 1S takes about 5.5 hours and the Pro 2 about 8 to 9 hours. A red light means charging.
- E-bike battery: 1S: 36 V rated, 7650 mAh, 275 Wh. Pro 2: 37 V rated, 12400 mAh, 446 Wh. Removing the battery yourself voids warranty service, so leave it to Xiaomi or a pro.
Tools for common jobs
- Hex keys: a 5 mm hex for the brake adjusting screw and the three folding screws, a 3 mm hex for the front screws and bell, and a 2 mm hex for the folding sleeve screw.
- Tire levers: to get the 8.5-inch tire off the rim when you replace a tube.
- Floor pump with gauge: to hold 45 to 50 psi, front and rear.
- Cable cutters: to trim a new rear brake cable after you set it.
- Multimeter: charger output should be about 42 V; a shop or careful owner can confirm it. See check your charger.
Where to buy
- Xiaomi does not run a parts store in the US. Ask Xiaomi support or an authorized service center for genuine parts, and match the specs on the pages above.
- Independent sellers: see where to buy e-bike repair parts.
- A shop can order and fit parts: find a shop.
Common repairs
- M365, 1S and Pro 2 won't charge
- Error 10 and 21, communication, error 18, motor hall and Pro 2 error 14, throttle
- Adjust mechanical disc brakes and replace disc brake pads
- Flat tire, install a tire liner and Xiaomi scooter troubleshooting
Sources
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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