Specialized Rockhopper 29

Name: Specialized Rockhopper 29
Brand: Specialized

2020 MountainCross-country Manufacturer page

Last known price: $500

Prices shown first for United States
Fork travel: 100 mm
Wheels: 29″
Drivetrain: 2 × 8 22–36t / 11–34t
Gear range: 506%
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

10 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, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

7 parts

Bottom bracket

Square-tapered, 73mm, internal bearings, 122.5mm spindle Not identified
Cassette
- SunRace 11–34t
Chain
- KMC X8 EPT 8 speeds
Crankset

Stout 2x, forged alloy, 22/36T Not identified
Front derailleur
- Shimano Altus FD-M315 2 speeds
FD-M315
Rear derailleur
- Shimano Tourney TX RD-TX800 8 speeds
RD-TX800
Shifters
- microSHIFT

Brakes

1 part

Brakes

Front: Radius CX7, mechanical disc, 160mm, Rear: Radius CX7, mechanical disc, 160mm Not identified

Wheels and tires

5 parts

Front hub
- Formula
Rear hub
- Formula
Rims
- Specialized
Spokes

Stainless, 14g Not identified
Tires

Front: Ground Control Sport, 29x2.3", Rear: Ground Control Sport, 29x2.3" Not identified

Cockpit and contact points

5 parts

Grips
- Specialized
Handlebar

Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm Not identified
Saddle

Bridge Sport, steel rails Not identified
Seatpost

Alloy, 12mm offset, 2-bolt clamp, 30.9mm Not identified
Stem

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

Sizes and geometry

5 sizes Open in the geometry plotter

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

Size LG

Table

Reach 445mm

Stack 626mm

Wheelbase 1152mm

Head angle 68.5°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	405	425	445	465	485
Stackmm	607	616	626	640	654
Top tube lengthmm	586	608	630	654	679
Seat tube lengthmm	360	400	450	500	560
Head tube lengthmm	95	95	105	120	135
Head tube angle	68.5°	68.5°	68.5°	68.5°	68.5°
Seat tube angle	73.5°	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	440	440	440	440	440
Wheelbasemm	1105	1128	1152	1178	1203
Front centermm	672	696	719	745	770
Bottom bracket dropmm	62	62	62	62	62
Bottom bracket heightmm	310	310	310	310	310
Standover heightmm	732	754	781	820	853
Fork rakemm	46	46	46	46	46
Trailmm	97	97	97	97	97
Stack/reach ratio	1.50	1.45	1.41	1.38	1.35
Suspension and parts
Crank lengthmm	170	170	175	175	175
Handlebar widthmm	720	740	740	740	740
Stem lengthmm	45	60	60	70	70
Seatpost lengthmm	350	400	400	400	400

Not published by the manufacturer: 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: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 22
Largest chainring: 36
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 18.8 in
Highest gear: 94.9 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 2.3″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

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

Front travel

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2020
Sample: 1,088 bicycles with this information
Coverage: 86.0% of the class

Lowest gear

18.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2020
Sample: 1,057 bicycles with this information
Coverage: 83.6% of the class

Highest gear

94.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2020
Sample: 1,057 bicycles with this information
Coverage: 83.6% of the class

Shifting

Mechanical

57 of 1,264 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2020
Sample: 1,264 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.2 km/h
Highest gear: 36.4 km/h

Total gear range 506%

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: 18.8–94.9 gear inches
Class reference (p10–p90): 17.4–105.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2020
Lowest gear: 1057 bicycles with this information, 83.6% of the class
Highest gear: 1057 bicycles with this information, 83.6% 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 2020 builds

Differences across 2020 builds
Specification	This bicycle Specialized Rockhopper 29	Specialized Rockhopper	Specialized Rockhopper Comp 1X	Specialized Rockhopper Comp 29	Specialized Rockhopper Expert 1X	Specialized Rockhopper Sport 26
Suspension
Front travel	100 mm	100 mm	100 mm	100 mm	100 mm	80 mm
Drivetrain
Front chainrings	2	2	1	1	1	2
Smallest chainring	22	22	30	30	30	22
Largest chainring	36	36	30	30	30	36
Rear sprockets	8	8	9	9	10	9
Largest sprocket	34	34	42	42	42	36
Lowest gear	18.8 in	18.8 in	20.7 in	20.7 in	20.7 in	15.9 in
Highest gear	94.9 in	94.9 in	79.1 in	79.1 in	79.1 in	85.1 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Other specifications
Fork spring	Coil	Coil	Coil	Coil	Air	Coil
Wheel size	29″	29″	29″	29″	29″	26″