Marin Rift Zone JR 24

2025 YouthMountain youth Manufacturer page

Marin Rift Zone JR 24, color Green Yellow Fade

Last known price: $1,899

Prices shown first for United States
Travel: 130 / 130 mm Fork / rear shock
Wheels: 24″
Drivetrain: 1 × 11 32t / 11–50t
Gear range: 455%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

One 124.5–144.8

Components

19 of 22 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

Series 3 6061 Aluminum, 24” Wheels (fits up to 26"), 130mm Travel, MultiTrac Suspension Platform, 148x12mm Boost Thru-Axle, 73mm Threaded BB w/ ISCG05 Tabs Not identified

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket

External Sealed Cartridge Bearing Not identified
Cassette
- Shimano CS-LG400-11 11 speeds 11–50t
CS-LG400-11
Chain
- Shimano CN-LG500
CN-LG500LG-500
Crankset
- Marin 32t
Rear derailleur
- Shimano Cues RD-U6000 11 speeds
RD-U6000
Shifters
- Shimano Cues SL-U6000-11R 11 speeds
SL-U6000-11R

Brakes

2 parts

Wheels and tires

5 parts

Front hub
- Joytech
Rear hub
- Joytech
Rims
- Marin
Spokes

14g Stainless Steel Not identified
Tires
- Vee Tire

Cockpit and contact points

6 parts

Sizes and geometry

1 size Open in the geometry plotter

Enter your height to highlight matching ranges.

Size One

Table

Reach 380mm

Stack 538mm

Wheelbase 1089mm

Head angle 65.5°

Seat angle 76.0°

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 Reported by the manufacturer

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	380
Stackmm	537.57
Top tube lengthmm	515.17
Seat tube lengthmm	315
Head tube lengthmm	95
Head tube angle	65.5°
Seat tube angle	76°
Chainstay lengthmm	425
Wheelbasemm	1089.28
Front centermm	664
Bottom bracket dropmm	10
Bottom bracket heightmm	308.5
Standover heightmm	614
Fork rakemm	42
Stack/reach ratio	1.42
Suspension and parts
Crank lengthmm	152
Handlebar widthmm	720
Stem lengthmm	45

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Full suspension
Front travel: 130 mm
Rear travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 50
Lowest gear: 15.4 in
Highest gear: 69.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 2.4″
Wheel material: Aluminum
Wheel size: 24″

Technical analysis

3 measures

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

Lowest gear

15.4 gear inches

This value is below the central range for this class.

Cohort: Youth / Mountain youth Model year: 2025
Sample: 257 bicycles with this information
Coverage: 70.0% of the class

Highest gear

69.8 gear inches

This value is within the central range for this class.

Cohort: Youth / Mountain youth Model year: 2025
Sample: 257 bicycles with this information
Coverage: 70.0% of the class

Shifting

Mechanical

10 of 367 bicycles with this information use electronic shifting.

Cohort: Youth / Mountain youth Model year: 2025
Sample: 367 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 5.9 km/h
Highest gear: 26.7 km/h

Total gear range 455%

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: 15.4–69.8 gear inches
Class reference (p10–p90): 14.0–80.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2025
Lowest gear: 257 bicycles with this information, 70.0% of the class
Highest gear: 257 bicycles with this information, 70.0% 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 Marin Rift Zone JR 24	Marin Rift Zone 1	Marin Rift Zone 2	Marin Rift Zone 26"	Marin Rift Zone 29" 1	Marin Rift Zone 29" Carbon 2
Frame
Frame material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Suspension
Front travel	130 mm	150 mm	140 mm	130 mm	140 mm	130 mm
Rear travel	130 mm	140 mm	130 mm	130 mm	130 mm	125 mm
Drivetrain
Smallest chainring	32	30	32	32	32	32
Largest chainring	32	30	32	32	32	32
Rear sprockets	11	11	12	11	11	12
Largest sprocket	50	50	51	50	51	51
Lowest gear	15.4 in	16.5 in	18.2 in	15.4 in	18.2 in	18.2 in
Highest gear	69.8 in	75.0 in	84.4 in	69.8 in	84.4 in	84.4 in
Other specifications
Tire width	2.4″	2.4″	2.35″	2.4″	2.35″	2.5″
Wheel size	24″	27.5″	29″	24″	27.5″ / 29″	29″
Fork spring	Not informed	Air	Air	Not informed	Not informed	Air