motorcycle dragrace compilation

That's a great set of hashtags! To maximize the reach and viral potential of your YouTube Short, especially since you are featuring the R15 V4, you can add a few more popular and relevant ones.
Here's an expanded and optimized list of hashtags for your motorcycle drag race compilation Short:
Existing (Good Foundation):
#MotorcycleDragRaceCompilation
#YouTubeShort
#ShortViral
#R15V4
#SportsBike
#VideoViral
#Motovlog
#ShortVirus (Note: Consider using #ShortsFeed or #YouTubeShorts instead of #ShortVirus)
#ViralHashtag
Recommended Additions (for broader and specific reach):
| Category | Hashtag | Reason |
|---|---|---|
| YouTube Specific | #YouTubeShorts | Essential for being recognized and pushed by the YouTube Shorts algorithm. |
| | #ShortsFeed | Targets users scrolling through the Shorts section. |
| Action/Content | #DragRace | Simple, highly searched, and directly describes the content. |
| | #Racing | Broad category for motorsports enthusiasts. |
| | #BikeRace | Alternative for a wider audience. |
| Motorcycle Type/Brand | #YamahaR15 | Specific model searches often include the full name. |
| | #Yamaha | Brand recognition. |
| | #Sportbike | A common alternative spelling/term for your category. |
| | #BikeLife | Popular term in the motorcycle community. |
| Excitement/General | #Speed | Describes the thrill of the video. |
| | #Adrenaline | Relates to the viewer's experience. |
| | #Performance | Appeals to those interested in bike modifications/specs. |
Optimized Final List:
#MotorcycleDragRaceCompilation #YouTubeShorts #ShortViral #R15V4 #YamahaR15 #SportsBike #VideoViral #DragRace #Racing #Motovlog #BikeLife #ShortsFeed #Speed #Motorcycle #Yamaha #Performance #BikeRace #Shorts