Kross Level JR 4.0

2026 YouthGeneral youth Manufacturer page

Fork travel: 60 mm
Wheels: 24″
Weight: 12.4 kg 27.3 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

10 of 18 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

ALUMINIUM LITE Not identified

Suspension

1 part

Fork
- RST

Drivetrain

7 parts

Bottom bracket

FP-B902 Not identified

FP-B902
Cassette
- microSHIFT Advent
Chain
- Shimano CN-HG53
CN-HG53
Crankset

WHEEL TOP Not identified
Front derailleur

None
Rear derailleur
- microSHIFT ADVENT Super Short Cage Clutch 9 speeds
Shifters
- microSHIFT Advent

Brakes

2 parts

Brake levers
- Shimano BL-MT200
BL-MT200
Brakes
- Shimano BR-MT200
BR-MT200

Wheels and tires

4 parts

Front hub

ALUMINIUM Not identified
Rear hub

ALUMINIUM Not identified
Rims

ALUMINIUM Not identified
Tires
- Schwalbe Smart Sam

Cockpit and contact points

4 parts

Grips
- Kross
Headset

1-1/8" Not identified
Pedals

PLASTIC COMPOSITE / STEEL Not identified
Saddle
- Selle Royal Explora

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 12"

Table

Reach 352mm

Stack 517mm

Wheelbase 990mm

Head angle 69.0°

Seat angle 73.0°

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
Frame
Reachmm	352
Stackmm	517
Top tube lengthmm	510
Seat tube lengthmm	300
Head tube lengthmm	100
Head tube angle	69°
Seat tube angle	73°
Chainstay lengthmm	420
Wheelbasemm	990
Front centermm	575
Bottom bracket dropmm	50
Standover heightmm	666
Fork rakemm	39
Stack/reach ratio	1.47
Suspension and parts
Handlebar widthmm	620
Stem lengthmm	45

Not published by the manufacturer: Bottom bracket height, Trail, Front travel, Rear travel, Crank length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 12.4 kg

27.3 lb

Suspension

Suspension configuration: Hardtail
Front travel: 60 mm

Drivetrain

Front chainrings: 1

Derived by Bikelake

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Shifting: Mechanical

Additional specifications

Fork spring: Air
Wheel material: Aluminum
Wheel size: 24″

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 2026 builds

Differences across 2026 builds
Specification	This bicycle Kross Level JR 4.0	Kross Level 1.0	Kross Level 4.0	Kross Level 4.0 ULT.RA	Kross Level 5.0	Kross Level 6.0
Frame
Bicycle weight	12.4 kg	15.4 kg	15.3 kg	15.5 kg	14.6 kg	14.9 kg
Suspension
Front travel	60 mm	100 mm	100 mm	100 mm	120 mm	120 mm
Drivetrain
Front chainrings	1	Not informed	1	1	1	1
Rear sprockets	Not informed	Not informed	10	10	11	12
Other specifications
Fork spring	Air	Coil	Coil	Coil	Air	Air
Wheel size	24″	29″	29″	29″	29″	29″
Tire width	Not informed	2.25″	2.25″	2.25″	2.35″	2.4″
Bottom bracket standard	Not informed	Not informed	Not informed	Not informed	Not informed	BSA