The best electric bike accessories: Reviews & RecommendationsWhen I first started commuting by e-bike, I went the minimalist route and wore a backpack. At about $160, it’s not cheap, but safety is priceless, making this the most essential of our best electric bike accessories. All that said, a lock is the second-most essential of the best electric bike accessories after a helmet. The right bike accessories depend on what you’re using your bike for. Keep maintenance basics in mind, and always double-check compatibility when selecting from our best electric bike accessories.