Schwalbe Thunder Burt Tire - 29 x 2.1 Tubeless Folding BLK/Transparent Evolution Super Race Addix Speed Vivid Air R2C The big cylindrical lens is

The big cylindrical lens is ventilated and maximizes your field of view

32 oz (M1 27

10 degrees of flare offers the best compromise for hand position when riding on all roads

You can still connect to the ones who matter

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Schwalbe Thunder Burt Tire - 29 x 2.1 Tubeless Folding BLK/Transparent Evolution Super Race Addix Speed Vivid Air R2C The big cylindrical lens isSchwalbe 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