Bombtrack Tension 1

Name: Bombtrack Tension 1
Brand: Bombtrack

2019 RoadCyclocross

Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 11 40t / 11–42t
Gear range: 382%
Weight: 9.6 kg 21.2 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

17 of 19 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

6061-T6 double butted alloy, tapered head tube, TA dropouts, replaceable hanger, BB86 shell Not identified

Suspension

1 part

Fork

carbon alloy TA disc fork, 1.1/2" - 1.1/8" tapered steerer Not identified

Drivetrain

7 parts

Bottom bracket
- FSA
Cassette
- SRAM PG-1130 11 speeds 11–42t
PG-1130
Chain
- KMC X11 11 speeds
Crankset
- FSA OMEGA MEGAEXO 40t
Front derailleur

None
Rear derailleur
- SRAM Apex 1 11 speeds
Shifters
- SRAM Apex 1 11-Speed Flat Bar 11 speeds

Brakes

1 part

Brakes
- SRAM Apex Disc

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Other components

3 parts

Fenders

None
Lights

None
Racks

None

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 381mm

Stack 560mm

Wheelbase 1014mm

Head angle 71.5°

Seat angle 73.0°

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 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	370	381	392	403
Stackmm	535	560	584	600
Top tube lengthmm	534	552	571	586
Seat tube lengthmm	500	530	560	590
Head tube lengthmm	115	139	162	179
Head tube angle	71°	71.5°	72°	72°
Seat tube angle	73°	73°	73°	73°
Chainstay lengthmm	425	425	425	425
Wheelbasemm	1000	1014	1028	1044
Front centermm	584	598	611	627
Bottom bracket dropmm	65	65	65	65
Bottom bracket heightmm	279	279	279	279
Standover heightmm	768	796	820	839
Fork rakemm	45	45	45	45
Trailmm	73	71	66	65
Stack/reach ratio	1.45	1.47	1.49	1.49

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: Aluminum
Fork material: Carbon
Bicycle weight: 9.6 kg

21.2 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: 42
Lowest gear: 27.6 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: BB86/BB92
Tire clearance: Maximum tire width: 40c; 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

27.6 gear inches

This value is below the central range for this class.

Cohort: Road / Cyclocross Model year: 2019
Sample: 104 bicycles with this information
Coverage: 88.1% of the class

Highest gear

105.5 gear inches

This value is within the central range for this class.

Cohort: Road / Cyclocross Model year: 2019
Sample: 104 bicycles with this information
Coverage: 88.1% of the class

Shifting

Mechanical

10 of 118 bicycles with this information use electronic shifting.

Cohort: Road / Cyclocross Model year: 2019
Sample: 118 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.6 km/h
Highest gear: 40.4 km/h

Total gear range 382%

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: 27.6–105.5 gear inches
Class reference (p10–p90): 27.6–125.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Cyclocross Model year: 2019
Lowest gear: 104 bicycles with this information, 88.1% of the class
Highest gear: 104 bicycles with this information, 88.1% 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 2019 builds

Differences across 2019 builds
Specification	This bicycle Bombtrack Tension 1	Bombtrack Tension 2	Bombtrack Tension 3
Frame
Frame material	Aluminum	Aluminum	Carbon
Bicycle weight	9.6 kg	8.8 kg	8.5 kg
Drivetrain
Largest sprocket	42	36	36
Lowest gear	27.6 in	32.2 in	32.2 in
Other specifications
Bottom bracket standard	BB86/BB92	BB86/BB92	PF30
Tire clearance	Maximum tire width: 40c; Additional specification: Wheel kind: 700	Maximum tire width: 40c; Additional specification: Wheel kind: 700	Maximum tire width: 38c; Additional specification: Wheel kind: 700