Our world championship-winning Quartz Frame is now available in a brand-new disc version, premiering our Sliding Dropout Disc System. Utilizing a flat mount style caliper and internal cable routing for the best possible braking system; with this huge upgrade, the Quartz is now one of the lightest and most progressive alloy frames on the market!
Material Hydroformed 6061 alloy, Paradigm tubing
Top Tube Length (actual) 21.75” (552mm)
Chainstay Length (min.) 14.8” (376mm)
Dropout Size – New sliding dropout disc system for 10 & 15mm axles
20mm hub axle)
Head Tube Angle 74°
Seat Tube Angle 71°
Head Tube Size (full int.) tapered 1-1/8” – 1.5” (125mm)
Seat Post Size 27.2mm
Seat Tube Length 231mm
Bottom Bracket Type Euro, threaded, BSA 68mm
Bottom Bracket Height 11.6″ (EU)
Wheel Size 20″ x 1.75″
Rider Area 551.9mm
• NEW disc-brake-specific model with internal cable routing
• forged and CNC machined Sliding Dropout Disc System with integrated chain tensioner
• super lightweight alloy frame (200g less than the Helium frame)
• x10 world championship wins
• Paradigm superior tubing
• flat mount disc brake only (not compatible with v-brakes)
• Designed for 140mm and 120mm rotors (please check 120mm rotor fitment with an authorized Radio Bikes dealer based on your hub and brake caliper dimensions)
Weight 1.655g / 3.64lbs



The owner of this website has made a commitment to accessibility and inclusion, please report any problems that you encounter using the contact form on this website. This site uses the WP ADA Compliance Check plugin to enhance accessibility.