Bombtrack Beyond+ Midtail Frame
The Beyond+ Midtail is a double-butted, suspension-corrected crmo steel frame with an integrated rear rack. A quadruple-butted downtube reinforces the headtube junction, while the 60 cm rack platform carries two child seats or four panniers. Multiple mounting points support bags and accessories. Frame only, compatible with Seido BPS, Seido Taza, or 120 – 140 mm suspension forks.
Frame
- Color: Metallic burgundy
- Frame: 4130 double butted crmo, TA, rack / fender mounts, Boost spacing, stealth dropper ready, ED coating, 73 mm BSA BB shell
Parts & Accessories
- Through axle: 12 x 148 mm
- Seat clamp: Bombtrack Origin 34.9 mm
Weights & Limits
- Weight frame: 4700 g frame (size M, incl. TA, hanger)
- Maximum rider weight: 200 kg incl. luggage
- ASTM riding condition: 3
The Beyond+ Midtail is a double-butted, suspension-corrected crmo steel frame with an integrated rear rack. A quadruple-butted downtube reinforces the headtube junction, while the 60 cm rack platform carries two child seats or four panniers. Multiple mounting points support bags and accessories. Frame only, compatible with Seido BPS, Seido Taza, or 120 – 140 mm suspension forks.
Frame
- BB standard: BSA - 73 mm shell width
- Frame max tire clearance with fender: 29'' x 2.6''. Bigger tires up to 29'' x 3.0'' will fit into the frame, but limit the maximum possible inner chain angle and are only recommended with singlespeed or geared hubs.
- Frame front derailleur compatible: yes
- Front derailleur clamp diameter: 34.9 mm
- Brake mount rear: IS
- Maximum rotor clearance rear: 180 mm
- Bike trailer: approved
- Seat tube mounted child seat: approved
- ISO testing standard: MTB
- Distance between M5 mounts on rack stays: 50 mm
Drivetrain
- Maximum chainring clearance 1x:
48 T with 52 mm chainline - Chainline: 52 mm - The use of a 55 mm chainline can lead to contact between chain and driveside rack stay, therefore Sram T-Type drivetrains are not recommended.
Seat & Seatpost
- Seat post diameter: 30.9 mm
- Seat clamp diameter: 34.9 mm
Spare Parts
- Derailleur hanger: Sram UDH
- Frame small parts: BT-CR-006 / BT-CR-008