Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Titanium -
Groupset GRX Di2, GRX 800 -
Suspension Rigid -
Drivetrain 2 × 11 Electronic -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
XS
156cm - 166cm
SM
163cm - 174cm
MD
171cm - 182cm
LG
179cm - 189cm
XL
185cm - 195cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Titanium 3Al-2.5V, TA, rack / fender mounts, UDH derailleur hanger
Suspension Fork
Full carbon, TA, 1.1/2'' - 1.1/8'', triple cage mounts (can double as fender mounts),internal hub dynamo cable routing
Drivetrain
Rear Derailleur
SHIMANO GRX DI2 RD-RX815
Front Derailleur
SHIMANO GRX DI2 FD-RX815-F
Shift Levers
SHIMANO GRX DI2 ST-RX815 2 x 11
Cassette
SHIMANO ULTEGRA CS HG 800, 11-speed, 11 - 34 T
Crank
SHIMANO GRX 810-2, holow forged aluminium crank, 24 mm spindle
Bottom Bracket
BOMBTRACK T47 internal sealed BB for 24 mm spindle
Chain
KMC X11 EPT Anti Rust chain, 1/2'' x 11/128'', 114L
Pedals
-
Wheels
Front Hub
BOMBTRACK TAU sealed hub, 6-bolt disc
Rear Hub
BOMBTRACK TAU sealed hub, 11-speed, 6-bolt disc
Rims
WTB EZR i25, TCS 2.0, 32h
Tires
Front: WTB RANGER TCS LIGHT / FAST ROLLING 27.5'' x 2.0'', tubeless ready, Rear: WTB RANGER TCS LIGHT / FAST ROLLING 27.5'' x 2.0'', tubeless ready
Brakes
Brakes
SHIMANO GRX BR-RX810 flat mount hydraulic disc brakes with 160 mm rotors
Cockpit
Stem
SEIDO DRIFT forged aluminium stem, 0°
Handlebar
SEIDO TACKLE drop bar, 31.8 mm, 16° flare
Grips
BOMBTRACK ESCAPE bar tape
Headset
Sealed external aheadset, 1.1/2'' - 1.1/8''
Seat
Saddle
BOMBTRACK DART saddle
Seatpost
SEIDO YEW aluminium seatpost, 27.2 mm x 300 mm
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.53 mm | 1.54 mm | 1.53 mm | 1.55 mm | 1.54 mm |
| Front Center | 581 mm | 596 mm | 610 mm | 625 mm | 645 mm |
| Rake | 48 mm | 48 mm | 48 mm | 48 mm | 48 mm |
| Trail | 65 mm | 65 mm | 62 mm | 62 mm | 62 mm |
| Stack | 546 mm | 565 mm | 581 mm | 600 mm | 619 mm |
| Reach | 357 mm | 366 mm | 379 mm | 388 mm | 401 mm |
| Top Tube Length | 511 mm | 525 mm | 548 mm | 562 mm | 587 mm |
| Seat Tube Angle | 74.5 ° | 74.5 ° | 74 ° | 74 ° | 74 ° |
| Seat Tube Length | 460 mm | 500 mm | 530 mm | 570 mm | 600 mm |
| Head Tube Angle | 71.5 ° | 71.5 ° | 72 ° | 72 ° | 72 ° |
| Head Tube Length | 110 mm | 130 mm | 150 mm | 170 mm | 190 mm |
| Chainstay Length | 417 mm | 417 mm | 417 mm | 417 mm | 417 mm |
| Wheelbase | 987 mm | 1002 mm | 1017 mm | 1032 mm | 1052 mm |
| Bottom Bracket Drop | 75 mm | 75 mm | 70 mm | 70 mm | 70 mm |
| Standover Height | 740 mm | 768 mm | 795 mm | 823 mm | 847 mm |
| Wheels | 650 | 650 | 650 | 650 | 650 |
| Rider Min Height | 156 cm | 163 cm | 171 cm | 179 cm | 185 cm |
| Rider Max Height | 166 cm | 174 cm | 182 cm | 189 cm | 195 cm |
About this model
HOOK EXT TI is part of the Bombtrack Hook model. 24 bikes variations carry this model name so far. You can easily view all of the Bombtrack Hook bikes models from 2023, here.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Gravel bikes average price
According to our math, the average price for a trustworthy Gravel bike is 2462$. However, even though the average price of a Gravel bike is lower, you might still be able to get a top-quality bike. In short, before purchasing your ideal bike do some research about its components, and also check for reviews online.
HOOK EXT TI components
Fork material
HOOK EXT TI has a carbon fork, so, it is super light and stiff. In conclusion, a carbon fork gives you great control when steering, and is also more forgiving.
Wheels size
When leaving the production line, the HOOK EXT TI model has aluminum wheels. After 700c wheels, 650b is the second most popular choice for road bikes. However, if you want higher speeds, you should look for a bike with 700c wheels.
Brakes
For your safety, it is important to have quality breaks on your bike. Bombtrack HOOK EXT TI has Hydraulic Disc brakes installed. These kinds of brakes are among the most popular models used on bikes. To sum up, you can ride your bike with confidence.
Sizes
This bike is available in 5 sizes. They vary from 156 cm – 195 cm (5.12 ft – 6.4 ft). In short, you can easily find one that suits you.