Schwalbe Thunder Burt Tire - 29 x 2.1 Tubeless Folding BLK/Transparent Evolution Super Race Addix Speed CheckoutTitle=SRAM DB6/4 Disc Brake Lever Assembly - Left 6 | IS52/40 SHIS Upper

6 | IS52/40 SHIS Upper IS41/28

Tread pattern designed to increase mileage

Flywheel design and easy to grip free turning sleeve for very high working speeds

at some point your luck will run out if you have a soft case and your skis and/or poles will get broken

Larger X-SYNC pulleys for increased durability and efficiency

Schwalbe Thunder Burt Tire - 29 x 2.1 Tubeless Folding BLK/Transparent Evolution Super Race Addix Speed CheckoutTitle=SRAM DB6/4 Disc Brake Lever Assembly - Left 6 | IS52/40 SHIS UpperSchwalbe Thunder Burt Tire 29 x 2. 1 Tubeless Folding Black Transparent Evolution Super Race Addix Speed. Schwalbe Thunder Burt Tires. The development goal of this tire was to combine the best of the Racing Ralph and Furious Fred. With its many small lugs it has the grip of the Racing Ralph but the low rolling resistance of the Furious Fred. PaceStar: fast rolling cross country compound with easy rolling base layer fast center and grippy shoulders