Bombtrack Tension C

2025 RoadCyclocross Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 11 40t / 11–36t
Gear range: 327%
Weight: 8.5 kg 18.7 lb · Reference configuration not specified
Frame: Carbon
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

17 of 20 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

Toray T700/T800 Hi-Mod carbon, TA, 68 mm T47 BB shell Not identified

Suspension

1 part

Fork

Full carbon, TA, 1.1/2'' - 1.1/8'' Not identified

Drivetrain

7 parts

Bottom bracket
- Bombtrack
Cassette
- SRAM PG-1130 11 speeds 11–36t
PG-1130
Chain
- KMC X11 11 speeds
Crankset
- SRAM Force 1
Front derailleur

None
Rear derailleur
- SRAM Force 1 11 speeds
Shifters
- SRAM Force

Brakes

2 parts

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Grips
- Bombtrack
Handlebar
- Ritchey Comp Streem
Headset

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

None
Saddle
- Seido
Seatpost
- Ritchey Comp
Stem
- Ritchey Comp 4 Axis

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 378mm

Stack 565mm

Wheelbase 1008mm

Head angle 72.0°

Seat angle 73.5°

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	378	376	378	382	391
Stackmm	533	553	565	584	603
Top tube lengthmm	521	535	545	560	575
Seat tube lengthmm	490	520	540	560	580
Head tube lengthmm	110	123	140	160	180
Head tube angle	71°	71.5°	72°	72°	72°
Seat tube angle	75°	74°	73.5°	73°	73°
Chainstay lengthmm	425	425	425	425	425
Wheelbasemm	1007	1007	1008	1018	1033
Front centermm	591	591	591	601	616
Bottom bracket dropmm	64	64	64	64	64
Bottom bracket heightmm	280	280	280	280	280
Standover heightmm	761	785	800	818	837
Fork rakemm	45	45	45	45	45
Trailmm	73	70	66	66	66
Stack/reach ratio	1.41	1.47	1.50	1.53	1.54

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: Carbon
Fork material: Carbon
Bicycle weight: 8.5 kg

18.7 lb
Weight limit: 115 kg

253.5 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 32.2 in
Highest gear: 105.5 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: 37c; Additional specification: Wheel kind: 700
Tire width: 33c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

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

Lowest gear

32.2 gear inches

This value is within the central range for this class.

Cohort: Road / Cyclocross Model year: 2025
Sample: 80 bicycles with this information
Coverage: 90.9% of the class

Highest gear

105.5 gear inches

This value is within the central range for this class.

Cohort: Road / Cyclocross Model year: 2025
Sample: 80 bicycles with this information
Coverage: 90.9% of the class

Shifting

Mechanical

27 of 88 bicycles with this information use electronic shifting.

Cohort: Road / Cyclocross Model year: 2025
Sample: 88 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 12.3 km/h
Highest gear: 40.4 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: 32.2–105.5 gear inches
Class reference (p10–p90): 23.6–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Cyclocross Model year: 2025
Lowest gear: 80 bicycles with this information, 90.9% of the class
Highest gear: 80 bicycles with this information, 90.9% 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 Tension C	Bombtrack Tension Apex	Bombtrack Tension C Rival AXS	Bombtrack Tension Rival
Frame
Frame material	Carbon	Aluminum	Carbon	Aluminum
Bicycle weight	8.5 kg	Not informed	Not informed	9.4 kg
Weight limit	115 kg	120 kg	115 kg	120 kg
Frame weight	Not informed	1.58 kg	1.06 kg	Not informed
Drivetrain
Rear sprockets	11	12	12	11
Smallest sprocket	11	11	10	11
Largest sprocket	36	44	36	42
Lowest gear	32.2 in	26.4 in	32.2 in	27.6 in
Highest gear	105.5 in	105.5 in	116.0 in	105.5 in
Cockpit
Shifting	Mechanical	Mechanical	Electronic	Mechanical
Other specifications
Tire clearance	Maximum tire width: 37c; Additional specification: Wheel kind: 700	Maximum tire width: 37c; Additional specification: Wheel kind: 27.5, Maximum tire width: 37c; Additional specification: Wheel kind: 700	Maximum tire width: 37c; Additional specification: Wheel kind: 700	Maximum tire width: 37c; Additional specification: Wheel kind: 27.5, Maximum tire width: 37c; Additional specification: Wheel kind: 700
Tire width	33c	33c	33c	32c
Wheel size	700c	650b / 700c	700c	650b / 700c