Radio Race QUARTZ PRO Frame

The Terra Disc Pro XXL Frame is a high-performance BMX race frame designed for elite-level speed, precision, and durability. Built from premium TORAYCA carbon fiber with full monocoque construction, it delivers ultra-lightweight stiffness, responsive handling, and race-proven performance for competitive riders.

Features

• Full monocoque TORAYCA carbon fiber construction
• Sliding Dropout Disc System (SDDS) with integrated chain tensioner
• Internal cable routing for a clean aerodynamic look
• Flat mount disc-brake-only compatibility
• Reinforced bottom bracket, stays, and head tube areas
• Aggressive race geometry with shorter backend
• 30mm dropout adjustment for precise wheel positioning
• Compatible with 120mm and 140mm disc rotors
• Tire clearance up to 2.0” (50mm)

Specifications

• Color: Black / Vampire Red
• Material: High performance TORAYCA carbon fiber
• Top Tube Length: 21.75” (552.6mm)
• Chain Stay Length: 14.3” (364mm)
• Head Tube Angle: 74.5°
• Seat Tube Angle: 71°
• BB Height: 11.6” (294.64mm)
• Seat Tube Height: 9.37” (238mm)
• Wheel Size: 20” x 1.75”
• Head Tube: Tapered 1-1/8” – 1.5” integrated
• Seat Post Size: 27.2mm
• Bottom Bracket: BSA, 68mm wide
• Brake Mount: Flat mount disc brake only
• Dropouts: SDDS for 10mm & 15mm axles
• Weight: Approx. 1.31kg (2.8lbs)

Performance Highlights

• Excellent strength-to-weight ratio
• Ultra-stiff frame for fast acceleration
• Responsive handling and race-focused control
• XXL sizing optimized for taller riders
• Developed and tested during the 2023–2024 race season