Warranty Policy

Frequently Asked Questions

Please take a look at the sections below to find the answers you’re looking for. If you can’t find what you’re looking for or have additional questions, please don’t hesitate to contact us. We’re always here to help!

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Last updated: Sep. 2025

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FAQ

Warranty Policy

Our warranty covers all new ebike manufacturing defects for 2-year from the date of purchase. If it meets the maintenance standards, we will repair your electric bike and cover all related parts, costs, and labor. If you need repairs or the parts are not covered by our warranty, please let us know and we will do our best to assist you—typically, we can diagnose the problem and send you replacement parts for purchase. If your ebike needs to be returned for repair, we will work with you to minimize the cost and workload.

We will replace any parts deemed to have been damaged during shipping. Shipping damage must be reported to Shengmilo within 14 days of shipment arrival. This applies to all products including bikes and accessories.

Shengmilo will request additional documentation (such as video) to assist with accurately diagnosing the problem and processing the warranty claim. Most warranty parts are fulfilled 1-10 business days after the request is put into our system by a customer service representative. Replacement parts will not be sent until evidence has been provided to Shengmilo.

Warranty parts are sent using UPS First Class, FedEx Express, or DHL depending on the size of the part. Warranty parts will not be expedited.

Items including the chain, tires, wheels, tubes, battery handle, brake pads, cables and housing, grips, and spokes are considered wear items. These items wear down with normal use and are not covered under warranty. You are responsible for replacing and maintaining these worn items. Any unauthorized alterations or repairs are not covered and may avoid this warranty. For warranty services, please contact Shengmilo online support by email at support@smlebike.com. Bikes or parts returned without proper documentation may result in delayed service or denied warranty coverage.

The following parts and damage are not covered by the warranty:

Exceeding weight or speed limit (see product description for your model limit)
Expose the electric bike or battery to an ambient temperature above 100°F or below 0°F for more than several hours at a time.
Expose the electric bike to floods, storms, hail, or other similar events
Immerse our electric bike in any liquid medium
Attempt to change the program of any electronic system
Improper battery maintenance (see manual)

Warranty Claiming Process

1. In order to claim the warranty, you need to provide visual (pictures and videos) evidence of the defects. Such evidence should be sent to our email support@smlebike.com along with relevant text information.
2. If the customer service team ascertains that there is indeed a manufacturing defect, we will send you new replacement parts.
3. Replacement parts are provided only once during the warranty period.

Part

Free Warranty

Motor

24 Months

Battery

12 Months

Charger

24 Months

Frame

24 Months

Controller

24 Months

Meter

24 Months

Part

24 Months

Front and Rear brakes

24 Months

Shock Absorber

24 Months

Accelerator

24 Months

Front fork

24 Months

Handlebar

24 Months

Pedal assistance Sensors

24 Months

Accessories sold on www.smlebike.com are not covered under warranty (except in cases of shipping damages). Stolen bikes are not covered under warranty.