The BOMBTRACK Audax AL Frame Fork Set is a lightweight aluminium road and endurance frame set designed for fast riding over mixed road surfaces. It combines a double-butted aluminium frame with a full carbon fork and supports wide tyre clearance, multiple mounting points, and modern thru-axle standards for stability and efficiency.

• Frame material: 6061-T6 double-butted aluminium
• Fork material: full carbon
• Bottom bracket: T47 (86.5 mm shell width)
• Headset standard: IS42 / 28.6 and IS52 / 40 (1 1/8" – 1 1/2")
• Headset type: sealed integrated headset
• Headset crown race angle: 36°
• Front axle: 12 × 100 mm thru-axle
• Rear axle: 12 × 142 mm thru-axle
• Seatpost diameter: 27.2 mm
• Seat clamp: 31.8 mm (Bombtrack Prime)
• Max rider weight: 120 kg (including luggage)
• Riding category: ASTM condition 2 / Road standard
• Frame weight: 1810 g (size M, incl. hardware)
• Fork weight: 530 g (incl. thru-axle)
• Mounts: mudguard mounts on frame and fork
• Additional mounts: multiple cargo/bottle cage mounting points
• Max tyre clearance (frame/fork): 650B × 50C or 700C × 35C
• Max chainring (1x): 42T (45 mm chainline)
• Max chainring (2x): 50/34T (43.5 mm chainline)
• Front derailleur compatibility: yes
• Brake mounts: Flat Mount front and rear (140 / 160 mm)
• Max rotor size: 160 mm front and rear
• Derailleur hanger: BT-DH-018
• Front thru-axle: BT-TA-F-601
• Rear thru-axle: BT-TA-R-601
• Frame small parts: BT-CR-013