TUFO Primus 33 SG Cyclocross Tubular Tire, 700c x 33

All-Season Cyclocross Tubular

The Primus 33 SG is a versatile 700 x 33 tubular for cyclocross and rough urban riding. Its self-cleaning tread keeps its grip, and aggressive side knobs help you corner with confidence.

TUFO's Oil Silica compound damps vibration, so long, rough days are less tiring. Whether you're racing cross or riding mixed city terrain, it's a durable all-condition choice. Tubulars are sewn-up tires that glue or tape onto a dedicated tubular rim, so check your wheels before you buy.

TUFO was founded in the Czech Republic in 1991 by former racer Miloslav Klabal, who built his first tubular in a garden shed. In 1993 TUFO patented the tubular clincher, and today it still makes its tires in its own factories in Otrokovice and Zlín.