Budget guide
E-bike commuter kit under $300
Spend first on the failure that would end your commute: theft, being unseen, or a flat you cannot fix. This example budget is a planning framework, not a shopping guarantee; prices change and bike compatibility comes first.
Stage 1: security and visibility ($140-$210)
Start with a lock carrying an independent rating accepted by your insurer, then add front and rear lights suitable for your route. A secondary lock can protect a wheel or force a thief to use two tools. No lock is theft-proof, and a bright light does not make a rider visible in every situation.
Stage 2: get home after a minor mechanical ($25-$55)
Carry a compatible tube or patch kit, tire levers, compact pump, and the tools your axle requires. Practice wheel removal at home and check whether your motor cable or hub hardware changes the process. Roadside work near traffic may be unsafe; use a recovery option when needed.
Stage 3: weather and cargo ($35-$90)
Use existing clothing before buying a cycling wardrobe. Prioritize a waterproof cover or dry bag for electronics and cargo that cannot get wet. Confirm rack capacity, heel clearance, and fastener torque before fitting panniers.
Official sources
Use these primary sources to verify the safety-sensitive guidance above. Product manuals, policy terms, and local rules remain controlling.