On e-bikes, there's obviously more that can go wrong, and at great cost. Catastrophic crashes from part failures are rare, but the financial impact of motors or batteries failing prematurely due to manufacturer defect can easily be $500+ if not under warranty.
And yet on many of the popular direct sale e-bike brands, the warranty is paltry, often one year for not just parts but the frame as well.
It's a bit shocking that frame warranties are so short, especially when big bike brands usually warranty frames for life, including on e-bikes.
I recognize that warranty servicing, especially for direct sales, can be costly to operate, but even then warranties may not cover labor, just parts. An approach like Wing's of charging you extra for a longer warranty on parts seems reasonable, (although warranties sold separately can often be overpriced).
Does it matter that warranties are so short? Should it matter? Are you willing to pay an extra 5-10% for a year or two more of warranty on parts?
Online direct sales ebike brands:
1 year (all parts):
Blix
FLX
Juiced
Lectric
Magnum
Rad Power
Ride1Up
Rize
Sondors
Super 73 (high end models have a 2 year warranty for just batteries)
Wing (but can pay extra for up to 3 years)
3 year frame, 1 year parts:
Espin
Surface 604
3 years, frame and parts:
Vanmoof
Lifetime frame, 1 year parts:
Biktrix (90 days for Swift Lite)