Specialized Riprock 20

Name: Specialized Riprock 20
Brand: Specialized

2018 YouthMountain youth Manufacturer page

Last known price: $465

Prices shown first for United States
Fork travel: 60 mm
Wheels: 20″
Drivetrain: 1 × 7 30t / 11–34t
Gear range: 309%
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

7 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

Specialized A1 Premium Aluminum, single-butted, ZeroStack head tube, 135mm rear hub spacing, forged dropouts, replaceable derailleur hanger Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

6 parts

Bottom bracket

BSA, square taper Not identified
Cassette
- SunRace 11–34t
Chain
- KMC
Crankset

Forged alloy, 127mm, Steel, 30T Not identified
Rear derailleur
- Shimano Tourney TX
Shifters
- Shimano Tourney

Brakes

1 part

Brakes

Front: Mechanical disc, organic pads, 160mm/6-bolt rotor, tool-less reach adjust brake lever, Rear: Mechanical disc, organic pads, 160mm/6-bolt rotor, tool-less reach adjust brake lever Not identified

Wheels and tires

5 parts

Front hub

Alloy, 6-bolt disc, 110mm spacing, loose ball bearings, QR, 28h Not identified
Rear hub

Alloy, 6-bolt disc, 135mm spacing, 7-speed freehub, loose ball bearings, QR, 28h Not identified
Rims

20", double-wall aluminum, 28h Not identified
Spokes

Stainless, 14g Not identified
Tires

Front: Big Roller, 60 TPI, wire bead, 20x2.8", Rear: Big Roller, 60 TPI, wire bead, 20x2.8" Not identified

Cockpit and contact points

6 parts

Grips
- Specialized
Handlebar

Double butted aluminum, 5-degree backsweep, 580mm width, 25.4mm Not identified
Pedals

Nylon platform w/ reflectors Not identified
Saddle
- Specialized
Seatpost

Alloy, single-bolt, 27.2mm Not identified
Stem

3D-forged alloy, 4-bolt, 6-degree rise, 25.4mm clamp, 60mm 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 9

Table

Geometry diagram unavailable

The drawing needs stack, which the manufacturer did not publish. Available facts remain in the table.

Size Reach Stack

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	306
Top tube lengthmm	465
Seat tube lengthmm	279
Head tube lengthmm	115
Head tube angle	69°
Seat tube angle	73°
Chainstay lengthmm	390
Wheelbasemm	909.5
Front centermm	523
Bottom bracket dropmm	37.5
Bottom bracket heightmm	237
Standover heightmm	528
Fork rakemm	40
Suspension and parts
Crank lengthmm	127
Handlebar widthmm	580
Stem lengthmm	60
Seatpost lengthmm	300

Not published by the manufacturer: Stack, Trail, Stack/reach ratio, Front travel, Rear travel, Stem angle and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 60 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 7
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 17.7 in
Highest gear: 54.6 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
Fork spring: Coil
Tire width: 2.8″
Wheel material: Aluminum
Wheel size: 20″

Technical analysis

2 measures

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

Lowest gear

17.7 gear inches

This value is below the central range for this class.

Cohort: Youth / Mountain youth Model year: 2018
Sample: 66 bicycles with this information
Coverage: 90.4% of the class

Highest gear

54.6 gear inches

This value is within the central range for this class.

Cohort: Youth / Mountain youth Model year: 2018
Sample: 66 bicycles with this information
Coverage: 90.4% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.8 km/h
Highest gear: 20.9 km/h

Total gear range 309%

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: 17.7–54.6 gear inches
Class reference (p10–p90): 16.9–75.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2018
Lowest gear: 66 bicycles with this information, 90.4% of the class
Highest gear: 66 bicycles with this information, 90.4% 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 2018 builds

Differences across 2018 builds
Specification	This bicycle Specialized Riprock 20	Specialized Riprock 20 Coaster	Specialized Riprock 24	Specialized Riprock Comp 24	Specialized Riprock Expert 24
Frame
Frame material	Aluminum	Not informed	Aluminum	Aluminum	Aluminum
Suspension
Suspension configuration	Hardtail	Rigid	Hardtail	Hardtail	Hardtail
Front travel	60 mm	Not informed	70 mm	70 mm	70 mm
Drivetrain
Front chainrings	1	Not informed	1	1	1
Smallest chainring	30	Not informed	30	30	32
Largest chainring	30	Not informed	30	30	32
Rear sprockets	7	Not informed	8	9	10
Smallest sprocket	11	Not informed	11	11	11
Largest sprocket	34	Not informed	34	36	36
Lowest gear	17.7 in	Not informed	21.2 in	20.0 in	21.3 in
Highest gear	54.6 in	Not informed	65.5 in	65.5 in	69.8 in
Brakes
Brake type	Mechanical disc	Coaster brake	Mechanical disc	Hydraulic disc	Hydraulic disc
Cockpit
Seatpost	Rigid seatpost	Not informed	Rigid seatpost	Rigid seatpost	Rigid seatpost
Other specifications
Bottom bracket standard	BSA	Not informed	BSA	BSA	BSA
Fork spring	Coil	Not informed	Coil	Air	Air
Suspension	Hardtail	Rigid	Hardtail	Hardtail	Hardtail
Tire width	2.8″	Not informed	2.8″	2.8″	2.8″
Wheel material	Aluminum	Not informed	Aluminum	Aluminum	Aluminum
Wheel size	20″	20″	24″	24″	24″