The Bombtrack Beyond+ frameset is designed as a robust and adaptable base for professional MTB and bikepacking builds.
Constructed from 4130 double-butted CrMo steel, it combines strength, reliability, and modern geometry optimized for long-distance and expedition use.

With Boost 12×148 mm rear spacing, rack and fender mounts, and stealth dropper-post routing, it’s ready for any setup — from heavy touring loads to technical off-road adventures.
Engineered to meet ASTM category 3 standards, the Beyond+ ensures long-term performance and safety under demanding conditions.

Technical Specifications

• Frame Material: 4130 double-butted CrMo steel

• Frame Standard: Boost 12×148 mm

• Fork: Not included (compatible with 500 mm axle-to-crown MTB forks)

• Headset Standard: ZS44 / EC44 (not included)

• Bottom Bracket: BSA, 73 mm shell width

• Seatpost: Ø 30.9 mm (dropper-post compatible)

• Seat Clamp: Bombtrack Origin 34.9 mm

• Rear Axle: 12×148 mm (included)

• Mounts: Rack, fender, and bottle cage mounts

• Brake Mount: IS rear, max. 180 mm rotor

• Max Chainring (1x): 32T at 52 mm chainline

• Max Tire Size: up to 29" × 3.0"

• Weight (frame only): 2910 g (size M, incl. axle & hanger)

• Max System Weight: 165 kg (incl. rider & luggage)

• ASTM Classification: Category 3 (MTB / Expedition / Bikepacking)

• Trailer Compatibility: Approved

• Seat-Tube Child Seat: Approved