The Kevlar foldable version of the Grippin tire is available in 20 x 1.9", with a weight of 550 grams (19.40 oz), and 20 x 2.1", with a weight of 590 grams (20.81 oz).
The Feelin tire features a low profile slick-tread design, constructed of a durable grip compound with traction improvers. The Feelin tire is also available in two versions and two sizes. Wire bead version is available in 20 x 1.9", with a weight of 570 grams (20.11 oz), and 20 x 2.1", with a final weight of 637 grams (22.47 oz). The Kevlar foldable version is available in 20 x 1.9", with a final weight of 540 grams (19.05 oz), and 20 x 2.1", with a weight of 590 grams (20.81 oz).
These tires have been in the testing and prototype stages for close to a year, and following an official OK from the WTP team, are now in production. The Grippin and Feeling tires should be in shops by June.