Bombtrack Beyond Junior

Name: Bombtrack Beyond Junior
Brand: Bombtrack

2021 YouthRoad youth Manufacturer page

Suspension: Rigid
Wheels: 24″
Drivetrain: 1 × 9 32t / 11–42t
Gear range: 382%
Weight: 10.9 kg 24.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

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

6061 aluminium, QR,rack / fender mounts,68 mm BSA BB shell Not identified

Suspension

1 part

Fork

6061 aluminium, QR, fender / rack / triple cage mounts,internal hub dynamo cable routing Not identified

Drivetrain

7 parts

Bottom bracket

BSA sealed BB, 118 mm, square taper Not identified
Cassette
- microSHIFT Advent 11–42t
CS-H093
Chain
- KMC
Crankset
- Bombtrack 32t
Front derailleur

None
Rear derailleur
- microSHIFT ADVENT Medium Cage Clutch 9 speeds
RD-M6195M
Shifters
- microSHIFT ADVENT Drop Bar Shifters 1×9 9 speeds
SB-M090

Brakes

1 part

Brakes
- Tektro

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Other components

3 parts

Fenders

None
Lights

None
Racks

None

Sizes and geometry

1 size Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size XXS

Table

Reach 326mm

Stack 498mm

Wheelbase 919mm

Head angle 71.5°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 24″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Reachmm	326
Stackmm	498
Top tube lengthmm	474
Seat tube lengthmm	330
Head tube lengthmm	100
Head tube angle	71.5°
Seat tube angle	73.5°
Chainstay lengthmm	390
Wheelbasemm	919
Front centermm	531
Bottom bracket dropmm	30
Standover heightmm	666
Fork rakemm	45
Trailmm	55
Stack/reach ratio	1.53

Not published by the manufacturer: Bottom bracket height, 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: Aluminum
Bicycle weight: 10.9 kg

24.0 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 18.3 in
Highest gear: 69.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 1.95″
Wheel material: Aluminum
Wheel size: 24″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.0 km/h
Highest gear: 26.7 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: 18.3–69.8 gear inches

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 2021 builds
Specification	This bicycle Bombtrack Beyond Junior	Bombtrack Beyond	Bombtrack Beyond 2
Frame
Frame material	Aluminum	Steel	Steel
Fork material	Aluminum	Steel	Steel
Bicycle weight	10.9 kg	12.9 kg	13.2 kg
Weight limit	Not informed	140 kg	140 kg
Drivetrain
Front chainrings	1	2	1
Smallest chainring	32	28	36
Largest chainring	32	40	36
Rear sprockets	9	10	11
Largest sprocket	42	36	42
Lowest gear	18.3 in	22.6 in	24.9 in
Highest gear	69.8 in	105.5 in	94.9 in
Other specifications
Tire width	1.95″	2″	50c
Wheel size	24″	27.5″ / 29″	27.5″ / 29″