DRIVE 2 CLIMB TEST
I'm the happy owner of a pair of DRIVE II wheels with a 36/50 profile.
They're exceptional 1296g wheels, very easy to ride, with a good feel, just the right amount of stiffness but not too twitchy. I think that's due to the 23mm inner width.
Thanks to the 23mm inner width, with my 28mm tires removed from my old wheels with a 20mm inner width, the tires feel wider and provide better cornering grip.
The wheels are built with great care, you can tell.
Performance: I'll just tell you that on a climb I often do, behind my house, from 4km at 5%, I saved 28 seconds, using 3 watts less on average according to my power meter... Let's also say, with the same power, 7 seconds per km better than the 1500g wheels I had before, made of mid-range Bontragers...
That said, I'd add the most important thing: the customer service is spectacular. Many more well-known brands should just learn from their customer service!
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