I recently purchased some rather expensive, supposedly invincible tires for my commute / touring bike. The Schwalbe Marathon Supremes are acclaimed as about the most indestructible tire out there, short of a couple truly massive things that really aren't much fun to ride on.
Now, if you ever found yourself asking, as I have, "Self, just what would it take to puncture one of these tough tires?" I can now provide an answer.
AxiDraw on t-shirts - #plottertwitter Sharpie on T-shirt for the win!#mtbos #iteachmath pic.twitter.com/gYwj4cFArM — Mark Kaercher (@shskaercher) June 6, 2018 We’ve seen a bunch...
1 week ago