Rocky Mountain Reaper 24

2018 YouthMountain youth

Last known price: $1,839

Prices shown first for United States
Travel: 120 / 130 mm Fork / rear shock
Wheels: 26″, 24″
Drivetrain: 1 × 10 28t / 11–42t
Gear range: 382%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

XS Steep
XXS Steep
XS Slack
XXS Slack

The manufacturer did not publish rider heights for these sizes.

Components

19 of 21 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

FORM™ Alloy. BC2™ / ABC™ Pivots. Full Sealed Cartridge Bearing Main Pivot. Press Fit BB. RIDE-9™ Adjustable Geometry + Suspension Rate. FORM™ Rear Triangle Not identified

RIDE-9

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket
- Shimano SM-BB92
SM-BB92
Cassette
- Shimano CS-HG500 10 speeds 11–42t
CS-HG500HG-500
Chain
- KMC X10 10 speeds
Crankset
- Rocky Mountain 28t
Rear derailleur
- Shimano Deore
Shifters
- Shimano Deore

Brakes

1 part

Brakes
- Shimano BR-M365
BR-M365

Wheels and tires

5 parts

Cockpit and contact points

6 parts

Sizes and geometry

4 sizes Open in the geometry plotter

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

Size XXS Steep

Table

Reach 380mm

Stack 529mm

Wheelbase 1071mm

Head angle 66.5°

Seat angle 77.3°

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 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	380	380	359	359
Stackmm	529	529	543	543
Top tube lengthmm	499	499	504	504
Seat tube lengthmm	329	329	329	329
Head tube lengthmm	100	100	100	100
Head tube angle	66.5°	66.5°	64.3°	64.3°
Seat tube angle	77.3°	77.3°	75°	75°
Chainstay lengthmm	417	417	422	422
Wheelbasemm	1071	1071	1075	1075
Front centermm	654	654	654	654
Bottom bracket dropmm	-3	-3	23	23
Standover heightmm	746	711	739	704
Fork rakemm	39	39	40	40
Stack/reach ratio	1.39	1.39	1.51	1.51

Not published by the manufacturer: Bottom bracket height, Trail, 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

Suspension

Suspension configuration: Full suspension
Front travel: 120 mm
Rear travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 16.0 in
Highest gear: 61.1 in

Wheels and brakes

Wheel configuration: Wheel options
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Tire width: 2.1″
Wheel material: Aluminum
Wheel size: 26″, 24″

Technical analysis

2 measures

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

Lowest gear

16.0 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

61.1 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: 6.1 km/h
Highest gear: 23.4 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: 16.0–61.1 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
Specification	This bicycle Rocky Mountain Reaper 24	Rocky Mountain Reaper 26
Drivetrain
Smallest chainring	28	30
Largest chainring	28	30
Lowest gear	16.0 in	17.1 in
Highest gear	61.1 in	65.5 in
Other specifications
Tire width	2.1″	2.35″
Fork spring	Not informed	Air

Changes since 2017
Specification	2017 Rocky Mountain Reaper 24	This bicycle Rocky Mountain Reaper 24
Drivetrain
Largest sprocket	36	42
Lowest gear	18.7 in	16.0 in
Wheels
Wheel configuration	Same size	Wheel options
Other specifications
Fork spring	Air	Not informed
Tire width	2″	2.1″
Wheel size	24″	26″ / 24″