The Bombtrack Audax 105 is a modern endurance road bike built for reliability, comfort, and versatility.
Its 4130 double-butted CrMo frame with T47 bottom bracket combines classic durability with modern standards, while the full carbon fork keeps steering precise and the ride responsive.

Equipped with a Shimano 105 2×12 hydraulic drivetrain, Seido Sinus i21 tubeless-ready wheels, and Kenda 4titude tires, the Audax delivers smooth performance across varied road conditions.
Internal cable routing for lights, rack and fender mounts, and a complete Seido cockpit and wheelset make it ideal for year-round endurance builds and dependable road touring.

Technical Specifications

• Color: Storm Blue

• Frame: 4130 double-butted CrMo steel, TA, rack & fender mounts, internal light cable routing, 85.5 mm T47 BB shell

• Fork: Full carbon, TA, 1.1/2"–1.1/8" tapered steerer

• Handlebar: Seido Tackle Road drop bar, 31.8 mm, 2° flare

• Grips: Bombtrack Command bar tape

• Stem: Seido Meander forged aluminium, -6°

• Headset: Seido Pro EC sealed external, 1.1/2"–1.1/8"

• Levers / Shifters: Shimano 105 ST-R7120 STI hydraulic, 2×12

• Brakes: Shimano 105 hydraulic disc brakes

• Rotors: Shimano SM-RT86, 160 mm

• Crankset: Shimano 105 FC-R7100, 50/34T, 24 mm spindle

• Bottom Bracket: Seido T47 internal sealed BB for 24 mm spindle

• Chain: Shimano 105 CN-M7100, 12-speed, 114L

• Cassette: Shimano 105 CS-HG70012, 11–36T

• Front Derailleur: Shimano 105 FD-R7100

• Rear Derailleur: Shimano 105 RD-R7100

• Front Hub: Seido Tau sealed hub, 6-bolt disc

• Rear Hub: Seido Tau sealed hub, HG driver, 6-bolt disc

• Through Axles: 12×100 mm (front) / 12×142 mm (rear)

• Rims: Seido Sinus i21, tubeless ready, 28h (front & rear)

• Tires: Kenda 4titude, 700C × 32C, 120 TPI, tubeless ready (front & rear)

• Saddle: Seido Course

• Seatpost: Seido Yew aluminium, Ø27.2 mm × 350 mm

• Seat Clamp: Bombtrack Prime 29.8 mm

• Rack / Fender / Light / Kickstand: Not included (mounts provided)

• Weight (complete): 10.2 kg (size M)

• Weight (frameset): 2110 g frame / 530 g fork (size M, incl. TA & hanger)

• Maximum Rider Weight: 120 kg (incl. luggage)

• ASTM Classification: Category 1 (Endurance / Road)