Each knob on Specialized's Fast Trak Control Tire has been shaped with the help of finite element analysis for less weight and less rolling resistance, yet with great cornering traction. The closely spaced center knobs with ramped edges keep you cruising fast and the casing is tough for excellent durability and flat protection. 2Bliss Ready design means you can take full advantage of lower tire pressures and decreased chance of pinch flats.
- 565 grams (650B x 2.0)
- 600 grams (650B x 2.2)
Going tubeless allows you to run lower tire pressures without the added weight of a tube. Lower tire pressure has many benefits, including greater traction, lower rolling resistance over rough surfaces, and decreased risk of a puncture-related flat.
Tubeless-ready rims and tires are parts of a complete system that eliminate the need for tubes by creating an airtight chamber between the rim and tire. Liquid sealant is added to the chamber to fill small punctures and maintain air pressure while you ride.
UST (Universal Standard for Tubeless) is a specific type of tubeless system that dictates the shape of the rim and tire beads. UST rims should be paired with UST-specific tires for best results.
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