Maintenance Log

A service-history record for your CEMOTO bike. Keeping one makes warranty claims easier, preserves resale value, and helps you spot recurring faults.
Why keep a log
Reason
Detail
Warranty claims
A dated record of inspections and servicing is evidence that the bike has been maintained. See Warranty Claims
Fault patterns
A problem that returns every 300 km tells you something a single incident does not
Resale value
A documented service history is worth money to a buyer
Scheduling
You can see what is due next rather than trying to remember
Safety
Wear trends — brake pads, chain stretch, tire tread — are easier to judge against a baseline
Your bike
Fill this in once and keep it with the log.
Field
Value
Model
Color / variant
Serial number
Battery serial (if shown)
Date purchased
Order number
Purchased from
Warranty expiry
Motor serial
Controller serial
Where to find the serial number: usually stamped on the frame head tube or on a label on the frame/battery housing. Photograph it and keep the photo with your purchase receipt — the receipt and the serial number together are what a warranty claim is built on.
Log entry template
Copy this block for each entry.
Date:
Odometer / hours:
Work performed:
Parts replaced (name + part number):
  -
Torque values used:
Conditions noted (noise, heat, error codes):
  -
Performed by:
Cost:
Next action due:
Worked example
Date: 2026-04-12
Odometer / hours: 412 km
Work performed: 6-month service. Chain cleaned and lubricated,
  tension set to 15 mm. Front and rear brake pads inspected
  (approx. 4 mm remaining). All fasteners re-torqued. Controller
  fins cleaned.
Parts replaced (name + part number):
  - None
Torque values used: Rear axle 16 N·m (rear rack fixing screw);
  axle nuts re-torqued to manual spec
Conditions noted (noise, heat, error codes):
  - Faint clicking from rear wheel under load after 380 km.
    Wheel bearings checked — no roughness detected. Monitoring.
Performed by: Owner
Cost: £0
Next action due: Annual service at 12 months. Re-check rear wheel
  bearing at next monthly check.
Quick-reference service interval table
Condensed from the Maintenance Schedule. Tick as you go.
Interval
Task
Done
Pre-ride
Brakes, throttle, tires, wheels, battery, frame, fasteners, chain slack, display, lights
☐
Post-ride (off-road)
Clean drivetrain; inspect brakes; wipe frame; check tires; cool before touching motor/brakes
☐
Weekly
Tire pressure; chain tension; brake pad thickness; drivetrain wear; spoke tension; suspension seals; fasteners; controller fins
☐
Monthly
Battery health; electrical connectors; wiring harness; brake fluid; tire sidewalls; suspension bolts; chain elongation; lights and horn; brake cut-off test
☐
6 months
Professional service; brake bleed; wheel bearings; suspension service; frame crack inspection; review this log
☐
Annually
Full professional service; replace brake fluid; replace chain and sprocket as a set; assess battery capacity; frame/fork/swing arm fatigue check; replace cables
☐
Fault history
Keep a running list of every fault you have observed, including ones that resolved themselves. Recurring codes are a diagnostic trail — see Display & Error Codes.
Date
Odometer
Error code
Symptom
What fixed it
Recurred?
Parts replaced
Date
Odometer
Part
Part number
Source
Price
Part numbers are listed in Spare Parts & Compatibility.
Battery health tracker
Rechargeable packs average 1 to 2 years of service. Tracking range decline gives you early warning of a failing pack.
Date
Odometer
Charge time (empty → full)
Typical range observed
Notes
Reading the table: a falling range combined with a shorter charge time usually means reduced capacity — the pack is accepting less energy. Compare against the published range figures with your own weight, terrain and temperature in mind. See Battery Care & Charging.
Warranty-relevant records
If you make a warranty claim, CEMOTO may ask for some or all of the following. Keep them together:
Document
Why it matters
Purchase receipt / order confirmation
Proves purchase date and that you are the original purchaser
Serial number photograph
Links the claim to a specific unit
This maintenance log
Evidence of proper care
Photographs or video of the fault
The single most useful item — see Contact & Support
Error code history
If a code was displayed, note it here and in the fault history table above
Warranty registration confirmation
See Warranty Registration
Related pages
Maintenance Schedule
Torque & Fastener Reference
Battery Care & Charging
Cleaning & Storage
Spare Parts & Compatibility
Warranty Claims