Our bike frames are covered under a lifetime repair or replace warranty. This includes defects caused by corrosion or fatigue but excluding corrosion caused by scratch penetration of powder coating. We cover the following under a 2 year warranty: 1) The battery and motor system. 2) The wooden panels of the cargo box – includes delamination of wood but excludes any deterioration of wood caused by penetration of the protective surface by wear and tear or deep scratching. 3) Non “wear and tear” items including the following: Saddle, Seat Post, Brake Calipers, Brake Levers, Gear Shifter, Rear Rack, Pivot shaft and bearings. The following items are considered “wear and tear” items and are not covered under any warranty: Tires, Inner Tubes, Valves, Wheels, Spokes, Brake Pads, Handlebar Grips, Bell, Chain, Gear Cables, Brake Cables, Fenders, Reflectors, Rain Cover, Loose nuts or bolts. The warranty starts the day of delivery, is non-transferable, and expires in the case of improper use or inadequate maintenance. Improper use is defined as riding directly up and down curbs, side impact against curbs, riding on two wheels (on a 3-wheel bike), loading of the cargo box above the maximum load of 220 pounds, damage arising from exceeding the design speed of the cycle or extended off road use (i.e. racing), damage as a result of an impact caused in an accident or malicious damage, using the bike in any commercial application such as renting or marketing, or if the standard components on the bike have been upgraded, modified, or removed. Bunch Bikes reserves the right to decide the cause of any warranty claim items, and our judgement is binding.