Tempest AL
"The short chainstays make for spritely handling bike when you need it, but a generous BB drop gives a planted and stable ride on long switchback descents"
Bombtrack Tempest AL
The Tempest AL is a lightweight aluminium allroad bike built for long days, fast commutes, and weekend escapes. Its adventure-ready geometry offers wide tire clearance and a dependable 2x drivetrain, striking the perfect balance between speed and versatility. The T47 bottom bracket adds durability and easy maintenance, while the Seido Banjo carbon fork features internal hub dynamo routing and front rack compatibility for loaded rides and night missions. Shimano’s hydraulic Tiagra 2x10 groupset delivers smooth, precise shifting with powerful braking. Rolling on Seido Sinus i21 tubeless-ready rims and fast-rolling Schwalbe One 700 x 30C tires, the Tempest AL handles mixed terrain with confidence. With Seido Tau disc hubs and 12 mm through axles for added stability, this is your go to setup for allroad riding - efficient, capable, and ready to roam.
Frame & Fork
- Color: Desert rust
- Frame: 6061-T6 double butted aluminium, TA, stealth fender mounts, 68 mm T47 BB shell
- Fork: Seido Banjo full carbon, TA, 1.1/2'' - 1.1/8'', 180 mm max rotor size, lowrider rack compatible, internal hub dynamo cable routing
Drivetrain & Shifting
- Shifter: Shimano Tiagra ST-4720 STI 2 x 10
- Front derailleur: Shimano Tiagra FD-4700-F
- Rear derailleur: Shimano Tiagra RD-4700-GS
- Chain: KMC X10 chain, 1/2'' x 11/128''
- Cassette: Shimano CS-HG500 10-speed, 11 - 34 T
- Crankset: Shimano Tiagra FC-4700, 24 mm spindle
- Chainring: Shimano Tiagra, 50 T / 34 T
- Bottom bracket: Seido T47 Pro external sealed BB for 24 mm spindle
Wheels & Tires
- Front hub: Seido Tau sealed hub, 6-bolt disc
- Rear hub: Seido Tau sealed hub, HG driver, 6-bolt disc
- Through axles: 12 x 100 mm / 12 x 142 mm
- Front rim: Seido Sinus i21, tubeless ready, 28H
- Rear rim: Seido Sinus i21, tubeless ready, 28H
- Front tire: Schwalbe One 30-622, tubeless ready
- Rear tire: Schwalbe One 30-622, tubeless ready
Cockpit
- Handlebar: Seido Tackle Road drop bar, 31.8 mm, 2° flare
- Grips: Bombtrack Command bar tape
- Stem: Seido Scatter forged aluminium stem, -7°
- Headset: Sealed integrated headset, 1.1/2'' - 1.1/2''
Seats & Seatpost
- Seat: Seido Course seat
- Seat post: Seido Yew aluminium seatpost, 27.2 mm x 350 mm
- Seat clamp: Bombtrack Prime 31.8 mm
Brakes
- Brake levers: Shimano Tiagra ST-4720 STI hydraulic
- Brakes: Shimano Tiagra BR-4770 hydraulic disc brakes
- Rotors: Shimano SM-RT66 180 mm front and 160 mm rear rotor
Weight & Limits
- Complete weight: 10.2 kg (size M)
- Weight frame: 1885 g frame (size M, incl. TA, hanger)
- Weight fork: 500 g fork (300 mm steerer, incl. TA)
- Maximum rider weight: 120 kg incl. luggage
- ASTM riding condition: 1
The Tempest AL is a lightweight aluminium allroad bike built for long days, fast commutes, and weekend escapes. Its adventure-ready geometry offers wide tire clearance and a dependable 2x drivetrain, striking the perfect balance between speed and versatility. The T47 bottom bracket adds durability and easy maintenance, while the Seido Banjo carbon fork features internal hub dynamo routing and front rack compatibility for loaded rides and night missions. Shimano’s hydraulic Tiagra 2x10 groupset delivers smooth, precise shifting with powerful braking. Rolling on Seido Sinus i21 tubeless-ready rims and fast-rolling Schwalbe One 700 x 30C tires, the Tempest AL handles mixed terrain with confidence. With Seido Tau disc hubs and 12 mm through axles for added stability, this is your go to setup for allroad riding - efficient, capable, and ready to roam.
Frame
- BB standard: T47 - 68 mm shell width
- Frame max tire clearance w/o fender:
35-622 - Frame front derailleur compatible: yes
- Front derailleur clamp diameter:
integrated FD hanger - Brake mount rear: FM 140 / 160
- Maximum rotor clearance rear: 160 mm
- Frame thickness rear brake mount: 20 mm
- Bike trailer: not approved
- Seat tube mounted child seat: not approved
- ISO testing standard: Road
Fork
- Fork max tire clearance w/o fender:
35-622 - Fork steerer inner diameter: 23.6 mm
- Headset standard (S.H.I.S.):
IS52 / 28.6 | IS52 / 40 - Headset crown race angle: 45°
- Brake mount front: FM 160 / 180
- Maximum rotor clearance front: 180 mm
Drivetrain
- Maximum chainring clearance 1x: TBA
- Maximum chainring clearance 2x: TBA
- Crankarm:
S - M 170 mm
L - 175 mm - Q Factor: TBA
- BCD crank: 110 mm, asymmetric Shimano 4 bolts
- Chainring offset: 0 mm
- Chainline: 44.5 mm
Seat & Seatpost
- Seat post diameter: 27.2 mm
- Seat post offset: 0 mm
- Seat post length: 400 mm
- Seat clamp diameter: 30.0 mm
Cockpit
- Stem length:
S - M 90 mm
L 100 mm - Stem angle: -7°
- Headset spacers: 1 x 10 mm, 2 x 5 mm
Wheels
- Spoke count (front / rear): 28 / 28
- Front through axle:
12 mm x 100 mm, 1.5 thread pitch - Rear through axle:
12 mm x 142 mm, 1.0 thread pitch - ERD: 585 mm
- Front hub PCD: 58 mm
- Rear hub PCD: 58 mm
- Front hub flange distance / offset:
56.5 mm center to center / 6.6 mm - Rear hub flange distance / offset:
51 mm center to center / 8.8 mm
Spare Parts
- Derailleur hanger: Sram UDH
- Frame small parts: TBA
- Hub end caps front: TBA
- Hub end caps rear: TBA
- Cassette body: TBA
- Through axle front: BT-TA-F-601
- Through axle rear: TBA
