Tempest
"A timeless steel road bike that balances comfort, precision and all-day endurance."
Bombtrack Tempest
The Tempest blends the lively comfort of a steel frame with modern performance. Its carbon fork ensures precise steering and vibration damping, while the Seido Sinus wheelset and tubeless ready Kenda 4titude tires enhance speed and grip. Equipped with a Shimano 105 2 x 12 hydraulic groupset and Seido Tau disc hubs, it’s built for efficiency, control, and all - day comfort. Whether you're chasing speed, enjoying a weekend escape, or exploring new routes, this is a road bike that delivers a smooth, confident, and rewarding ride - no matter the journey ahead.
Frame & Fork
- Color: Storm blue
- Frame: 4130 double butted crmo, TA, rack / fender mounts, internal light cable routing, ED coating, 85.5 mm T47 BB shell
- Fork: Full carbon, TA, 1.1/2'' - 1.1/8''
Drivetrain & Shifting
- Shifter: Shimano 105 ST-R7120 STI 2x12
- Front derailleur: Shimano 105 FD-R7100
- Rear derailleur: Shimano 105 RD-R7100
- Chain: Shimano 105 CN-M7100 chain, 1/2'' x 11/128'', 114L
- Cassette: Shimano 105 CS-HG70012 12-speed, 11 - 36 T
- Crankset: Shimano 105 FC-R7100, hollow forged aluminium crank, 24 mm spindle
- Chainring: Shimano 105, 12-speed, 50 / 34 T
- Bottom bracket: Seido 85.5 mm T47 internal 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: Kenda 4titude, 120 TPI, 32-622, tubeless ready
- Rear tire: Kenda 4titude, 120 TPI, 32-622, tubeless ready
Cockpit
- Handlebar: Seido Tackle Road drop bar, 31.8 mm, 2° flare
- Grips: Bombtrack Command bar tape
- Stem: Seido Meander forged aluminium stem, -6°
- Headset: Seido Pro EC sealed external headset, 1.1/2'' - 1.1/8''
Seats & Seatpost
- Seat: Seido Course seat
- Seat post: Seido Yew aluminium seatpost, 27.2 mm x 350 mm
- Seat clamp: Bombtrack Prime 29.8 mm
Brakes
- Brake levers: Shimano 105 ST-R7120 STI hydraulic
- Brakes: Shimano 105 hydraulic disc brakes
- Rotors: Shimano SM-RT86 160 mm rotors
Weight & Limits
- Complete weight: 10.2 kg (size M)
- Weight frame: 2110 g frame (size M, incl. TA, hanger)
- Weight fork: 530 g fork (300 mm steerer, incl. TA)
- Maximum rider weight: 120 kg incl. Luggage
- ASTM riding condition: 1
The Tempest blends the lively comfort of a steel frame with modern performance. Its carbon fork ensures precise steering and vibration damping, while the Seido Sinus wheelset and tubeless ready Kenda 4titude tires enhance speed and grip. Equipped with a Shimano 105 2 x 12 hydraulic groupset and Seido Tau disc hubs, it’s built for efficiency, control, and all - day comfort. Whether you're chasing speed, enjoying a weekend escape, or exploring new routes, this is a road bike that delivers a smooth, confident, and rewarding ride - no matter the journey ahead.
Frame
- BB standard: T47 - 85.5 mm shell width
- Frame max tire clearance w/o fender:
35-622 - Frame front derailleur compatible: yes
- Front derailleur clamp diameter: 28.6 mm
- Brake mount rear: FM 140 / 160
- Maximum rotor clearance rear: 180 mm
- Frame thickness rear brake mount: 10 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.):
EC34 / 28.6 | EC44 / 40 - Headset crown race angle: 45°
- Brake mount front: FM 140 / 160
- Maximum rotor clearance front: 180 mm
Drivetrain
- Maximum chainring clearance 1x:
44 T with 45 mm chainline - Maximum chainring clearance 2x:
53 / 39 T with 43.5 mm chainline - Crankarm:
XS 165 mm
S - M 170 mm
L 175 mm - Q Factor: 148 mm
- BCD crank: 110 mm / 80 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: 350 mm
- Seat clamp diameter: 29.8 mm
Cockpit
- Stem length:
XS - S 80 mm
M 90 mm
L 100 mm - Stem angle: -6°
- 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, 1.5 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: BT-DH-008
- Frame small parts: tba
- Hub end caps front: BT-HC-014
- Hub end caps rear: BT-HC-017
- Cassette body: BT-CB-006
- Through axle front: BT-TA-F-601
- Through axle rear: TBA
