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Latest News
40c vs 53c: The Gravel Tire Width Decision Most Riders Get Wrong
A 40–43c tyre is the right choice for riders who prioritise rolling speed on hardpack, frequently mix gravel with tarmac, or compete in gravel events with well-maintained courses. A 47–53c tyre suits riders who tackle chunky loose gravel, loaded adventure routes, or want confidence on rough and unpredictable terrain. Most riders who go wide once do not go back — provided their frame can accommodate the width.
1x vs 2x on a Gravel Bike: What Actually Changes (2026)
I slid a 53mm gravel tire into the chainstay of our Altera G21. Perfect fit. Then I bolted on a front derailleur and tried the same tire. Blocked. The cage sat right where the rubber needed to go. That’s the...
The Story Behind YOELEO ALTERA G21
Now, with these comprehensive updates, the G21 has evolved into the Altera G21, a more robust and refined iteration. For the Altera G21, we proudly showcase the entire journey of its development and production—from design and manufacturing to painting, quality...