Specialized Riprock 20

Name: Specialized Riprock 20
Brand: Specialized

2024 YouthMountain youth Manufacturer page

Specialized Riprock 20, color Gloss Pdrndgo Slt

Last known price: $599

Prices shown first for United States
Suspension: Rigid
Wheels: 20″
Drivetrain: 1 × 8 40t / 11–38t
Gear range: 345%
Weight: 9.79 kg 21.6 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

8 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

A1 Premium Butted Alloy, unisex frame, internal cable routing, 148mm thru-axle, 30.9mm dropper post ready, replaceable derailleur hanger compatible Not identified

Suspension

1 part

Fork

A1 Premium Butted Alloy, Alloy steerer, 15x110 mm, W/Mini Fender Not identified

Drivetrain

6 parts

Brakes

1 part

Brakes
- ProMax
DSK-926

Wheels and tires

5 parts

Front hub

Alloy, 6-Bolt, 28H, 15x110 Boost Not identified
Rear hub

Alloy, 6-Bolt, 28H, 12x148 Boost, 11-speed compatiable Not identified
Rims

Alloy, 16mm depth, 25mm internal width, 28H Not identified
Spokes

Stainless, 14g Not identified
Tires

Front: Ground Control Sport, 20x2.35", Rear: Ground Control Sport, 20x2.35" Not identified

Cockpit and contact points

6 parts

Grips
- Specialized
Handlebar

Mini Rise, Alloy Double Butted, 6-degree Backsweep, 600mm Width, 31.8mm , 19mm Bar End Diameter Not identified
Pedals

Nylon platform w/ reflectors Not identified
Saddle

Kids Bridge Saddle, 130mm Not identified
Seatpost
- Specialized
Stem

Stout 3D-forged alloy, 31.8mm, 6-degree rise Not identified

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 20"

Table

Reach 295mm

Stack 385mm

Wheelbase 830mm

Head angle 68.0°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 20″ 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	295
Stackmm	385
Top tube lengthmm	405
Seat tube lengthmm	290
Head tube lengthmm	75
Head tube angle	68°
Seat tube angle	73.5°
Chainstay lengthmm	350
Wheelbasemm	830
Front centermm	482
Bottom bracket dropmm	30
Bottom bracket heightmm	239
Standover heightmm	520
Fork rakemm	40
Trailmm	66
Stack/reach ratio	1.31
Suspension and parts
Crank lengthmm	115
Handlebar widthmm	600
Stem lengthmm	35

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Aluminum
Bicycle weight: 9.79 kg

21.6 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 38
Lowest gear: 21.1 in
Highest gear: 72.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 2.35″
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 20″

Technical analysis

3 measures

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

Lowest gear

21.1 gear inches

This value is within the central range for this class.

Cohort: Youth / Mountain youth Model year: 2024
Sample: 301 bicycles with this information
Coverage: 79.4% of the class

Highest gear

72.7 gear inches

This value is above the central range for this class.

Cohort: Youth / Mountain youth Model year: 2024
Sample: 301 bicycles with this information
Coverage: 79.4% of the class

Shifting

Mechanical

14 of 379 bicycles with this information use electronic shifting.

Cohort: Youth / Mountain youth Model year: 2024
Sample: 379 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.1 km/h
Highest gear: 27.9 km/h

Total gear range 346%

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: 21.1–72.7 gear inches
Class reference (p10–p90): 14.1–78.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2024
Lowest gear: 301 bicycles with this information, 79.4% of the class
Highest gear: 301 bicycles with this information, 79.4% 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 2024 builds
Specification	This bicycle Specialized Riprock 20	Specialized Riprock 24	Specialized Riprock Coaster 16	Specialized Riprock Coaster 20
Frame
Fork material	Aluminum	Aluminum	Steel	Steel
Bicycle weight	9.79 kg	10.75 kg	9.1 kg	10.6 kg
Drivetrain
Smallest chainring	40	40	26	36
Largest chainring	40	40	26	36
Rear sprockets	8	9	Not informed	Not informed
Smallest sprocket	11	11	Not informed	Not informed
Largest sprocket	38	42	Not informed	Not informed
Lowest gear	21.1 in	22.9 in	Not informed	Not informed
Highest gear	72.7 in	87.3 in	Not informed	Not informed
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Coaster brake	Coaster brake
Other specifications
Tire width	2.35″	2.35″	2.3″	2.3″
Wheel size	20″	24″	16″	20″

Changes since 2023
Specification	2023 Specialized Riprock 20	This bicycle Specialized Riprock 20
Frame
Bicycle weight	9.9 kg	9.79 kg
Drivetrain
Smallest chainring	30	40
Largest chainring	30	40
Rear sprockets	9	8
Largest sprocket	42	38
Lowest gear	14.3 in	21.1 in
Highest gear	54.6 in	72.7 in