You can watch "Ao Haru Ride" (also known as "Blue Spring Ride") legally on the following platforms:

• Rakuten Viki: The series is available for streaming with English subtitles, either free with ads or with a subscription for an ad-free experience

• BiliBili: Episodes of "Ao Haru Ride" with English subtitles are available to watch

It is not currently available on major platforms like Crunchyroll, Netflix, Amazon Prime Video, or Disney+ in many regions, including Germany, where it is reportedly not licensed

. For purchase or offline viewing, you can also buy the series on Google Play

. Summary:

• Streaming with subtitles: Rakuten Viki (free with ads or subscription), BiliBili
• Purchase: Google Play
• Not available on Crunchyroll or other major streaming services in some regions

This ensures you watch the series legally and with good subtitle options.