Has anyone heard or tried these on the front of their Spyder? I currently have the stock tires that came with the bike (2014 RTL), and currently have 33,000 miles, which is excellent for the stock tires, but they are showing some wear, and was looking for something new and different. I currently run the Kuhmo Est on back with excellent results, and have seen many threads about using the Kuhmo Solus on front, but according to reviews on Tirerack.com, they have poor to average reviews.
On that site, this one shows excellent reviews all around, but never heard of them, and the reviews are from car owners.

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Vredestein Quatrac 5
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VREDESTEIN
QUATRAC 5
Grand Touring All-Season
Size: 155/60R15 74T