Tioga Fastr-X S-Spec Tire – 120 TPI – Folding Bead

Product Overview The Tioga Fastr-X S-Spec is Tioga's most versatile lightweight race tire, engineered to balance speed and control across varied track conditions. Strategically positioned Grip-Pods paired with multi-faceted Nano Knobs on shoulders and sides deliver aggressive cornering traction, while chemically etched central tread enhances friction for power transfer without adding weight. The 120 TPI Cyclex ultralight casing with folding bead achieves the rarefied balance of acceleration, speed, and corner grip in a single tire.

Key Features

• Strategic Grip-Pod Placement – Raised tread elements positioned across shoulders and sides maximize cornering grip when the tire is pushed to its limits; pods remain out of the way during straight-line acceleration to minimize rolling resistance
• Multi-Faceted Nano Knobs – Textured knob surfaces on shoulder sections provide micro-grip across varied track surfaces and intermediate conditions; faceted design increases contact area without proportional weight gain
• Chemically Etched Central Tread – Chemical etching enhances friction on the center band, improving power transfer during hard acceleration and gate starts while maintaining low rolling resistance
• Cyclex 120 TPI Ultralight Casing – High thread-per-inch count creates supple, responsive sidewalls that absorb track imperfections; reduces rotational mass for faster acceleration and easier maneuverability
• Soft UTC Rubber Compound – Soft formulation maximizes grip across hard-pack, slick, and intermediate track surfaces; maintains traction in varied racing conditions
• Folding Bead Construction – Lightweight folding bead reduces unsprung weight compared to wire beads; resists pinch flats and bead unseating; enables compact transport
• Versatile Multi-Surface Design – Engineered for racing across hard-pack, slick, and mixed track conditions without requiring tire changes; single solution for varied race environments
• Front and Rear Compatible – Balanced tread geometry and pressure characteristics work effectively on both wheel positions

Technical Specifications

• Tire Type: BMX Race
• Casing: Cyclex 120 TPI ultralight
• Bead Type: Folding (Kevlar-reinforced)
• Rubber Compound: Soft UTC
• Tread Design: Grip-Pod system with multi-faceted Nano Knobs and chemically etched center tread
• Wheel Position: Front and rear
• Available Sizes:
  • 20x1.75": 300g (10.58 oz)
  • 20x1.60": 280g (9.88 oz)
  • 20x1-3/8": 270g (9.52 oz)
  • 20x1-1/8": 225g (7.93 oz)
• TPI: 120
• Surface Type: Hard-pack, slick, and mixed track conditions

Compatibility and Ideal Use Cases

• Fits: 20" BMX race wheels; available in four widths to accommodate various rim internal widths and riding preferences
• Best For: Versatile BMX racers seeking a single tire for training and racing across multiple track conditions; riders wanting maximum speed with consistent corner confidence
• Ideal Riders: Intermediate to advanced 20" racers; competitive riders practicing on tracks with varied surfaces or traveling to different venues; riders valuing lightweight performance and tread versatility
• Wheel Position: Both front and rear—no position restriction; consistent performance either position
• Inflation: Follow sidewall PSI recommendations; racing typically uses 80–110+ PSI depending on track condition and rider weight
• Not Recommended For: Off-road, street, or park riding; riders prioritizing extreme weight savings over grip (consider 20x1-1/8" size); riders on exclusively smooth surfaces seeking absolute minimum rolling resistance

Size Selection Four size options optimize for different needs: 20x1.75" for maximum grip and stability, 20x1.60" for balanced performance, 20x1-3/8" for mid-range weight savings, and 20x1-1/8" for minimal weight. Choose based on rim width, track conditions, and priority (grip vs. acceleration).

Performance Notes Fastr-X S-Spec combines multi-surface capability with lightweight construction; Grip-Pods remain passive during acceleration but engage fully when cornering, delivering intuitive grip progression. Chemically etched tread works across hard and slick surfaces without dragging. This tire excels for riders racing multiple track types without changing equipment.

Durability Note 120 TPI folding-bead construction prioritizes grip and speed over puncture resistance. Regular inspection for wear during training and racing sessions recommended.