Specialized Rockhopper Pro EVO 650b

2015 MountainTrail Manufacturer page

Fork travel: 120 mm
Wheels: 27.5″
Drivetrain: 2 × 10 22–36t / 11–36t
Gear range: 536%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 156–166
SM 163–174
MD 171–182
LG 179–189
XL 185–195

Components

16 of 23 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 SL Aluminum, EVO 650b geometry, fully butted tubesets, ORE downtube, tapered headtube, forged dropouts w/ disc mount, replaceable alloy derailleur hanger Not identified

Suspension

1 part

Fork
- RockShox XC

Drivetrain

7 parts

Bottom bracket

24mm BSA for 2 pc. design, 73mm Not identified
Cassette
- SunRace
Chain
- KMC X10 10 speeds
Crankset
- Specialized 36/22t
Front derailleur
- SRAM X5
Rear derailleur
- SRAM X9
Shifters
- SRAM X5

Brakes

2 parts

Wheels and tires

5 parts

Front hub
- Specialized
Rear hub
- Specialized
Rims

Stout XC, 650b disc, alloy double-wall, pin joint, 26mm inner width, 32h Not identified
Spokes

Stainless, 14g, black Not identified
Tires
- Specialized

Cockpit and contact points

7 parts

Grips
- Specialized
Handlebar
- Specialized
Headset

1-1/8"" upper, 1-1/2"" lower, Campy style, integrated sealed cartridge bearings Not identified
Pedals

Alloy, 1 pc. body, 9/16"", w/ reflectors Not identified
Saddle

Body Geometry mountain, steel rails, 143mm Not identified
Seatpost
- Tranz-X
Stem
- Specialized

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 410mm

Stack 612mm

Wheelbase 1097mm

Head angle 69.0°

Seat angle 72.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	382	400	410	427	449
Stackmm	583	597	612	621	630
Top tube lengthmm	560	594	609	629	654
Seat tube lengthmm	340	400	445	450	510
Head tube lengthmm	100	95	110	120	130
Head tube angle	69°	69°	69°	69°	69°
Seat tube angle	73°	72°	72°	72°	72°
Chainstay lengthmm	426	426	426	426	426
Wheelbasemm	1058	1081	1097	1117	1143
Front centermm	636	659	674	695	720
Bottom bracket dropmm	44	44	44	44	44
Bottom bracket heightmm	305	305	305	305	305
Standover heightmm	723.5	748	789.5	813	843
Fork rakemm	42	42	42	42	42
Trailmm	89	89	89	89	89
Stack/reach ratio	1.53	1.49	1.49	1.45	1.40
Suspension and parts
Crank lengthmm	170	175	175	175	175
Handlebar widthmm	740	740	740	740	740
Stem lengthmm	60	60	70	70	80

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

Suspension

Suspension configuration: Hardtail
Front travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 22
Largest chainring: 36
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 16.8 in
Highest gear: 90.0 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
Fork spring: Air
Tire width: 2.3″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

3 measures

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

Front travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2015
Sample: 155 bicycles with this information
Coverage: 93.3% of the class

Lowest gear

16.8 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2015
Sample: 163 bicycles with this information
Coverage: 98.1% of the class

Highest gear

90.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2015
Sample: 163 bicycles with this information
Coverage: 98.1% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.4 km/h
Highest gear: 34.5 km/h

Total gear range 535%

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: 16.8–90.0 gear inches
Class reference (p10–p90): 16.8–104.4 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2015
Lowest gear: 163 bicycles with this information, 98.1% of the class
Highest gear: 163 bicycles with this information, 98.1% 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 2015 builds

Differences across 2015 builds
Specification	This bicycle Specialized Rockhopper Pro EVO 650b	Specialized Rockhopper 29	Specialized Rockhopper Comp 29	Specialized Rockhopper Expert 29	Specialized Rockhopper Expert EVO 29	Specialized Rockhopper Expert EVO 650b
Frame
Fork material	Aluminum	Aluminum	Steel	Aluminum	Aluminum	Aluminum
Suspension
Front travel	120 mm	100 mm	100 mm	100 mm	120 mm	120 mm
Drivetrain
Front chainrings	2	3	2	2	2	2
Largest chainring	36	42	36	36	36	36
Rear sprockets	10	8	9	10	10	10
Largest sprocket	36	34	36	36	36	36
Lowest gear	16.8 in	18.8 in	17.7 in	17.7 in	17.7 in	16.8 in
Highest gear	90.0 in	110.7 in	94.9 in	94.9 in	94.9 in	90.0 in
Cockpit
Seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost
Other specifications
Bottom bracket standard	BSA	Not informed	Not informed	BSA	BSA	BSA
Fork spring	Air	Coil	Coil	Air	Air	Air
Tire width	2.3″	2.1″	2.1″	2.1″	2.3″	2.3″
Wheel size	27.5″	29″	29″	29″	29″	27.5″