Review: Schwalbe Albert Gravity & Trail Radial MTB Tires Simply Grip More
Briefly

I can simply say, this is the grippiest new all-rounder enduro mountain bike tire setup I've ridden in years, while still not feeling slow on the climbs... built up a new enduro test bike...these Albert Gravity Radials are the only tire I've even thought about putting on the new bike.
Their claim of 30% increased contact patch area at the same pressure, or 10% more contact even at 7psi/0.5bar higher tire pressures...simple description of the conventional 45° structure orientation vs. the new one that was 'a smaller angle' closer to a true radial orientation.
Read at Bikerumor
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