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2020 Rockhopper

$550

3.6

5 Reviews

Are you ready to level up your mountain bike game? The Rockhopper is like a cheat…

Color:

Satin Black/Spruce

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Product Details

Are you ready to level up your mountain bike game? The Rockhopper is like a cheat code for unlimited fun, with a lightweight A1 Aluminum alloy frame. Our Sport XC 29 geometry maximizes the benefits of large 29-inch wheels, while the hardworking parts kit just won’t quit.

DIALED FOR DIRT

Our Sport XC 29 geometry is designed for a comfortable, efficient riding position, with a short stem and longer reach that puts your center of gravity slightly farther back for stability, while the short chainstays keep the rear wheel tucked in for maximum traction.

SIR SHIFTS-A-LOT

The 16-speed Shimano drivetrain provides reliable shifting that puts you in the right gear every time. A broad gear range flattens out long hills and keeps you cranking on descents, and the rust-resistant KMC chain runs long and strong but won’t get the friction on.

SR SunTour XCT 30 suspension fork keeps you in control no matter the terrain.

Powerful Shimano hydraulic disc brakes give you confidence and control on steep trails.

Ground Control Sport front and Fast Trak Sport rear tires are the perfect combo of efficiency and grip.

Technical Specifications

FRAMESET

Frame

A1 alloy, Sport XC 29 Geometry, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger

Seat Binder

Alloy, quick-release clamp, 34.9mm

COCKPIT

Saddle

Specialized Bridge, size specific, 143/155mm

SeatPost

Alloy, 12mm offset, 2-bolt clamp, 30.9mm

Stem

Stout 3D-forged alloy, 31.8mm, 6-degree rise

Handlebars

Specialized Alloy XC minirise, double-butted alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 31.8mm

Grips

Specialized Trail Grips, lock-on

WHEELS

Rims

Alloy, disc only, double-wall, 25mm inner width

Front Hub

Shimano, Center Lock™ disc, 9x100mm spacing, quick-release, 32h

Front Tire

Ground Control Sport, 29x2.3"

Rear Tire

Fast Trak Sport, 29x2.3"

Inner Tubes

Schrader valve

DRIVETRAIN

Front Derailleur

Shimano Altus FD-M315 2-Speed

Shift Levers

Shimano EF505, hydraulic, 2x8-speed

Rear Derailleur

Shimano Tourney RD-TX800, 8-speed

Chain

KMC X8EPT, 8-speed, anti-corrosion coating w/ reusable Missing Link™

Cassette

SunRace, 8-speed, 11-34t

Crankset

Stout 2x, forged alloy

Bottom Bracket

Square-tapered, 73mm, internal bearings

Suspension

Fork

SR SunTour XCT 30, Rx Tune, coil spring, 80/90/100mm travel (size-specific), 46mm offset

BRAKES

Front Brake

Shimano BR-MT200, hydraulic disc

Rear Brake

Shimano BR-MT200, hydraulic disc

WHEELS & TIRES

Rear Hub

Shimano FH-TX505, Center Lock™ disc, 9x135mm spacing, quick-release, 32h

Spokes

Stainless, 14g

ACCESSORIES

Pedals

Specialized Body Geometry Fitness, platform, plastic

* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

	XS	S	M	L	XL	XXL
Crank Length	165mm	170mm	170mm	175 mm	175 mm	175 mm
Handlebar Width	720mm	720mm	750mm	750mm	750mm	750mm
Stem Length	45mm	45mm	60mm	60mm	70mm	90mm
Saddle Width	155mm	155mm	143mm	143mm	143mm	143mm
Seatpost Length	350mm	350mm	350mm	400mm	400mm	400mm
Stack	586mm	595mm	605mm	619mm	633mm	633mm
Reach	380mm	395mm	418mm	441mm	462mm	474mm
Head Tube Length	95mm	95mm	95mm	110mm	125mm	125mm
Head Tube Angle	69.8°	69.8°	69.8°	69.8°	69.8°	69.8°
BB Height	312.5mm	312.5mm	312.5mm	312.5mm	312.5mm	312.5mm
BB Drop	57.5mm	57.5mm	57.5mm	57.5mm	57.5mm	57.5mm
Trail	82mm	82mm	82mm	82mm	82mm	82mm
Fork Length, Full	486mm	496mm	506mm	506mm	506mm	506mm
Fork Rake/Offset	51mm	51mm	51mm	51mm	51mm	51mm
Front Center	631mm	650mm	676mm	704mm	730mm	742mm
Chainstay Length	440mm	440mm	440mm	440mm	440mm	440mm
Wheelbase	1065mm	1084mm	1110mm	1138mm	1164mm	1176mm
Top Tube Length, Horizontal	548mm	567mm	594mm	622mm	648mm	660mm
Bike Standover Height	719mm	765mm	776mm	807mm	837mm	861mm
Seat Tube Length	370mm	400mm	430mm	470mm	520mm	560mm
Seat Tube Angle	74°	73.9°	73.8°	73.7°	73.6°	73.6°

Manual Downloads

Specialized Bicycle Owner's Manual Addendum: Riding With Kids

Tire Pressure and Handlebar Grips Addendum

Trainer Usage Addendum to the Bicycle Owner's Manual

Dodatek - POUŽITÍ TRENAŽÉRU

Specialized Bicycle Owner's Manual (All Languages)

For safety warning please refer to the documentation in the Manual Downloads section of this page.

Rider Reviews

3.6

5 Reviews

06/01/2025

Great bike!

Great bike at a great price. Love that it has internal cable routing that gives you the option to add a dropper post

Name:: Dillon

Helpful?

05/13/2020

Clunky gear exchange and chain snapped!

I'm a larger (athletically built) man (6'5"" 240lbs) and have had a difficult time finding a bike. I was excited to finally get a ruggedized quality brand mountain bike for a reasonable cost. The XXL Rockhopper fit me well and seemed to be a well built strong bike. I've had the bike for 6 weeks now and the experience hasn't been great. Downshifting/upshifting isn't smooth and makes riding tough. To compound everything, I was riding yesterday when the chain snapped. I have less than 800 total miles on the bike. I'm in the process of getting the chain replaced, but wished the components/bike were better than what I'm experiencing. I'm planning on continuing my daily riding and if I don't experience and changes, I'll speak with the bike shop on what I can do to upgrade the components (gears etc) to upgrade the riding experience.

Name:: Desparate R.

Helpful?

03/15/2020

Less than impressed

I bought this bike about a month ago and I am less than impressed. I have used it on road, cc and downhill. It pops squeaks and I am about to just change brands I have only used specialized as long as I have been riding and I am disappointed in my new purchase.

Name:: Daniel

Helpful?

02/10/2020

More expensive than leading brands

After 1 ride around the block the sloppy chain chipped the paint. Have chain protector on order. Curve in the post tube does not let you out saddle all the way down. The trek marlin 4 has better frame and paint IMO. Does come with 29x2.3 tires which is good. Do not attach the kickstand because it will rub the tires. LBS built it up and it does have some squeak to it. Expensive for what you get but you do get hydraulic brakes.

Name:: Asuchemist

Helpful?

01/14/2020

Yes

Love it. It's a beast.

Name:: Roh R.

Helpful?