Bombtrack Hook

2025 RoadGravel Manufacturer page

Suspension: Rigid
Wheels: 650b, 700c
Drivetrain: 2 × 10 46t / 11–36t
Gear range: 327%
Weight: 11.1 kg 24.5 lb · Reference configuration not specified
Frame: Steel
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 156–166
SM 163–174
MD 171–182
LG 179–189
XL 185–195

Components

18 of 21 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Columbus Cromor double butted, TA dropout, rack / fender mounts, 86.5 mm T47 BB shell Not identified

Suspension

1 part

Fork

Full carbon, TA, 1.1/2'' - 1.1/8'', triple cage mounts (can double as fender mounts),internal hub dynamo cable routing Not identified

Drivetrain

7 parts

Bottom bracket
- Bombtrack
Cassette
- Shimano CS-HG50-10 10 speeds 11–36t
CS-HG50-10CS-HG50
Chain
- KMC X10 10 speeds
Crankset
- Shimano GRX FC-RX600-10 10 speeds
FC-RX600-10
Front derailleur
- Shimano GRX FD-RX400-F 2 speeds
FD-RX400
Rear derailleur
- Shimano GRX RD-RX400 10 speeds
RD-RX400
Shifters
- Shimano GRX ST-RX400
ST-RX400

Brakes

2 parts

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Grips
- Bombtrack
Handlebar
- Bombtrack
CX-10
Headset

Sealed external aheadset, 1.1/2'' - 1.1/8'' Not identified
Pedals

None
Saddle
- Seido
Seatpost
- Bombtrack
Stem
- Bombtrack

Other components

3 parts

Fenders

None
Lights

None
Racks

None

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 375mm

Stack 565mm

Wheelbase 1014mm

Head angle 71.6°

Seat angle 73.6°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	355	366	375	386	397
Stackmm	522	534	565	584	603
Top tube lengthmm	509	523	541	563	580
Seat tube lengthmm	460	490	525	545	565
Head tube lengthmm	100	110	130	150	170
Head tube angle	70.6°	71.1°	71.6°	71.6°	71.6°
Seat tube angle	73.6°	73.6°	73.6°	73.1°	73.1°
Chainstay lengthmm	410	410	425	425	425
Wheelbasemm	979	989	1014	1031	1049
Front centermm	576	586	597	615	632
Bottom bracket dropmm	54	54	64	64	64
Bottom bracket heightmm	—	—	285	285	285
Standover heightmm	732	752	803	821	841
Fork rakemm	50	50	50	50	50
Trailmm	65	62	65	65	65
Stack/reach ratio	1.47	1.46	1.51	1.51	1.52

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Steel
Fork material: Carbon
Bicycle weight: 11.1 kg

24.5 lb
Weight limit: 120 kg

264.6 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 46
Largest chainring: 46
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 37.1 in
Highest gear: 121.3 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: T47
Tire clearance: Maximum tire width: 45c; Additional specification: Wheel kind: 700
Tire width: 42c
Wheel material: Aluminum
Wheel size: 650b, 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

37.1 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Highest gear

121.3 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Shifting

Mechanical

688 of 1,999 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2025
Sample: 1,999 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 14.2 km/h
Highest gear: 46.4 km/h

Total gear range 327%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 37.1–121.3 gear inches
Class reference (p10–p90): 22.8–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2025
Lowest gear: 1536 bicycles with this information, 76.6% of the class
Highest gear: 1536 bicycles with this information, 76.6% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2025 builds
Specification	This bicycle Bombtrack Hook	Bombtrack Hook AL Sword	Bombtrack Hook EXT Apex Eagle	Bombtrack Hook EXT C	Bombtrack Hook EXT C Apex AXS	Bombtrack Hook EXT Rival
Frame
Frame material	Steel	Aluminum	Steel	Carbon	Carbon	Steel
Bicycle weight	11.1 kg	Not informed	Not informed	Not informed	9.9 kg	11.2 kg
Weight limit	120 kg	120 kg	130 kg	115 kg	115 kg	130 kg
Frame weight	Not informed	Not informed	2.71 kg	Not informed	Not informed	Not informed
Drivetrain
Front chainrings	2	2	1	1	1	1
Smallest chainring	46	31	40	38	38	40
Largest chainring	46	48	40	38	38	40
Rear sprockets	10	10	12	11	12	11
Smallest sprocket	11	11	11	10	11	11
Largest sprocket	36	38	50	42	50	42
Lowest gear	37.1 in	23.7 in	22.0 in	24.9 in	22.0 in	26.2 in
Highest gear	121.3 in	126.6 in	100.0 in	104.5 in	100.2 in	100.0 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Mechanical	Electronic	Mechanical
Derailleur hanger	Not informed	UDH	Not informed	UDH	UDH	Not informed
Other specifications
Tire clearance	Maximum tire width: 45c; Additional specification: Wheel kind: 700	Maximum tire width: 45c; Additional specification: Wheel kind: 700	Maximum tire width: 57c; Additional specification: Wheel kind: 27.5, Maximum tire width: 57c; Additional specification: Wheel kind: 700	Maximum tire width: 57c; Additional specification: Wheel kind: 27.5, Maximum tire width: 57c; Additional specification: Wheel kind: 700	Maximum tire width: 57c; Additional specification: Wheel kind: 27.5, Maximum tire width: 57c; Additional specification: Wheel kind: 700	Maximum tire width: 57c; Additional specification: Wheel kind: 27.5, Maximum tire width: 57c; Additional specification: Wheel kind: 700
Tire width	42c	42c	2″	40c	40c	2″
Wheel size	650b / 700c	650b / 700c	650b	700c / 650b	700c	650b

Changes since 2024
Specification	2024 Bombtrack Hook	This bicycle Bombtrack Hook
Frame
Bicycle weight	11 kg	11.1 kg
Drivetrain
Smallest chainring	32	46
Largest chainring	48	46
Lowest gear	25.8 in	37.1 in
Highest gear	126.6 in	121.3 in
Other specifications
Tire width	40c	42c