Strava Deletes 2.3 million e-Bike Rides:
Strava pulled off one of the biggest data cleanup operations in cycling app history.
The company deployed three new machine learning models to scan every major segment leaderboard on the platform. The mission was simple but massive in scope: remove the fake times that have plagued competitive cyclists for years.
The results? 2.3 million e-bike activities deleted. 1.6 million vehicle activities removed. And 293,000 athletes restored to their rightful spots in the top 10.
James, an engineer at Strava, broke the news on Reddit, explaining how the system now catches activities recorded on an e-bike but uploaded as normal rides. The cleanup focused on the top 100 activities for every single ride segment leaderboard globally, targeting vehicles, incorrect sport types, and e-bikes misclassified as traditional bike rides.
This wasn't just about numbers on a screen.
For years, serious cyclists have watched in frustration as their hard-earned segment times got buried under impossible speeds. Tourist-heavy areas were hit especially hard, where rental e-bikes would dominate local leaderboards and push legitimate riders down the rankings.
One Reddit user from Sedona captured the relief perfectly: "I live in Sedona, a heavy tourist area where tons of tourists rent e-bikes and every segment here was taken by a tourist on an e-bike. I haven't checked to see if that's changed, but LOVE that Strava has taken steps on this issue."
The technology behind the cleanup is surprisingly sophisticated. E-bikes leave distinctive digital fingerprints in the data. They go faster uphill but slower on flats and downhills compared to strong road cyclists. They sustain high power output far longer than any human reasonably could. The speed graph stays unnaturally flat, unaffected by wind or subtle gradients that would slow down a regular rider.
As one commenter explained: "Ebikes tend to go faster uphill and slower on flat/downhill compared to a strong road rider on a road bike, for example. Ebikes can also sustain high power for longer than your average human, so you can look at the length of 'efforts'."
Heart rate data also plays a role. Legitimate KOM attempts almost always include heart rate monitors showing maximum effort. E-bike riders rarely record heart rate, and when they do, the numbers tell a different story. As one user noted: "An legitimate KOM will without a doubt have a higher HR than one obtained with an e-bike."
To be clear, this cleanup isn't an attack on e-bike riders in general. E-bikes have their own category on Strava, and there's nothing wrong with tracking those rides. The issue was always about misclassified activities distorting leaderboards meant for traditional bikes.
The community response has been overwhelmingly positive. One user summed it up: "James, thanks for the updates and thanks for posting here. Overall, I think Strava rocks. I like the features, old and new, and I like knowing the Strava team is listening to our feedback."
The work isn't finished. As James acknowledged, "Data integrity work is never really 'done,' and we know there's still more to improve." But cyclists can now look at segment leaderboards and trust what they're seeing.
For those who've spent years chasing legitimate PRs only to watch them disappear under questionable times, this cleanup represents something bigger than just clean data.
It's validation that the effort mattered all along.