Specialized Rockhopper Comp - Hardtail Mountain bike at Bike Attack in Santa Monica

 

 

Lightweight Trail Performance with SRAM 1x12 Shifting

 

The Specialized Rockhopper Comp is a lightweight, capable, and affordable hardtail mountain bike built for trail riding, fitness, recreation, and everyday adventures. Available at Bike Attack Santa Monica, the Rockhopper Comp combines a Premium A1 Aluminum frame with a RockShox Judy air-suspension fork, SRAM 1x12 drivetrain, Tektro hydraulic disc brakes, tubeless-ready Specialized alloy wheels, and fast-rolling Ground Control tires.

 

Designed to deliver dependable performance without unnecessary complexity, the Specialized Rockhopper Comp is an excellent choice for riders looking for a versatile mountain bike for Southern California trails, fire roads, gravel paths, neighborhood rides, and fitness training.

 

Specialized A1 Premium Aluminum Frame

 

The Rockhopper Comp is built around Specialized’s lightweight and durable A1 Premium butted-alloy frame.

 

Hydroformed top and down tubes help keep weight low while maintaining the strength needed for off-road riding. The frame’s increased standover clearance improves rider confidence and makes mounting and dismounting easier.

 

Clean internal cable routing protects the cables while giving the bike a streamlined appearance.

 

Frame Features

 

• Specialized A1 Premium butted-alloy construction
• Hydroformed top tube and down tube
• Zero-stack head tube
• Internal cable routing
• Forged 135 x 9 mm rear dropouts
• Chainstay-mounted disc brake
• Replaceable alloy derailleur hanger
• Stealth rack mounts
• Dropper-post compatibility
• Alloy quick-release seat binder
• 34.9 mm seat binder diameter

 

Stealth rack mounts make the Rockhopper Comp practical for commuting and recreational use, while dropper-post compatibility allows riders to upgrade the bike for more technical trail riding.

 

Size-Specific 27.5-Inch and 29-Inch Wheels

 

Specialized pairs every Rockhopper Comp frame size with the wheel size that provides the best possible fit, handling, and rider control.

 

Extra Small and Small Rockhopper Comp models are equipped with 27.5-inch wheels.

 

All other sizes are equipped with 29-inch wheels.

 

The smaller 27.5-inch wheels provide responsive handling and appropriate fit for shorter riders. The larger 29-inch wheels offer increased rollover capability, momentum, stability, and traction for medium and larger frame sizes.

 

This size-specific approach allows every rider to experience balanced geometry and predictable trail handling.

 

RockShox Judy Solo Air Suspension Fork

 

The Specialized Rockhopper Comp features a RockShox Judy Solo Air suspension fork with a TurnKey damper and size-specific travel.

 

Unlike a basic coil fork, the Solo Air system can be adjusted to match the rider’s weight, riding style, and preferred suspension feel. This makes it easier to achieve proper support, comfort, and control on rough trails.

 

Depending on frame size, the fork provides 80, 90, or 100 mm of suspension travel to maintain consistent geometry and handling across the size range.

 

Fork Specifications

 

• RockShox Judy
• Solo Air spring
• TurnKey damper
• Size-specific 80, 90, or 100 mm travel
• 46 mm fork offset
• Quick-release axle
• Steel steerer tube

 

The RockShox Judy helps absorb rocks, roots, trail chatter, potholes, and uneven terrain for a smoother and more controlled ride.

 

SRAM 1x12 Eagle Drivetrain

 

A wide-range SRAM 1x12 drivetrain gives the Rockhopper Comp simple, dependable shifting with plenty of climbing range.

 

The single front chainring eliminates the weight and complexity of a front derailleur. Riders can move through all 12 gears using one shift lever, making the drivetrain intuitive and easy to operate.

 

The SRAM PG-1210 Eagle cassette provides an 11–50-tooth range, offering low gearing for steep climbs and useful higher gears for flat trails and faster riding.

 

Drivetrain Specifications

 

• SRAM S100 12-speed rear derailleur
• SRAM SL S100 shift lever
• SRAM PG-1210 Eagle 12-speed cassette
• 11–50-tooth cassette range
• SRAM S100 12-speed chain
• SRAM 30-tooth chainring
• Stout forged-alloy 1x crankset
• Square-tapered bottom bracket
• 73 mm bottom-bracket shell
• Internal bearings
• 122.5 mm spindle

 

The clutch-equipped rear derailleur helps reduce chain movement, keeps the drivetrain quieter, and improves chain retention on rough terrain.

 

Tektro Hydraulic Disc Brakes

 

The Rockhopper Comp is equipped with Tektro HD-M280 two-piston hydraulic disc brakes at the front and rear.

 

Hydraulic braking provides strong, smooth, and predictable stopping power with less hand effort than mechanical disc brakes. Large 180 mm rotors improve braking performance and heat management, especially on steeper descents and longer rides.

 

Brake Specifications

 

• Tektro HD-M280 front hydraulic disc brake
• Tektro HD-M280 rear hydraulic disc brake
• Two-piston brake calipers
• 180 mm front rotor
• 180 mm rear rotor

 

These brakes help riders maintain control on loose dirt, steep trails, wet pavement, and busy city streets.

 

Tubeless-Ready Specialized Alloy Wheels

 

The Rockhopper Comp uses lightweight and durable Specialized alloy hookless rims with a 25 mm internal width.

 

The rims are tubeless ready, allowing riders to convert to a tubeless setup with the appropriate tires, valves, sealant, and rim preparation. Tubeless systems can reduce pinch flats and allow lower tire pressures for improved traction and comfort.

 

Wheel Specifications

 

• Specialized alloy rims
• Hookless rim construction
• Tubeless-ready design
• 25 mm internal rim width
• Stainless-steel 14-gauge spokes
• Standard inner tubes
• Presta valves

 

Specialized Ground Control T5 Tires

 

Specialized Ground Control T5 tires provide dependable traction and predictable handling across dirt trails, gravel paths, fire roads, and mixed terrain.

 

The 2.35-inch tire width creates a stable contact patch for climbing, cornering, and braking while maintaining efficient rolling performance.

 

Tire Sizing

 

• XS and Small: 27.5 x 2.35 inches
• All other sizes: 29 x 2.35 inches
• Specialized Ground Control tread pattern
• T5 rubber compound
• Front and rear matching tires

 

Sealed-Bearing Alloy Hubs

 

The front and rear wheels use alloy sealed-bearing hubs for reliable rolling performance and reduced maintenance.

 

Front Hub

 

• Alloy construction
• Sealed bearings
• Six-bolt disc mount
• 100 x 9 mm spacing
• Quick-release axle

 

Rear Hub

 

• Alloy construction
• Sealed bearings
• Six-bolt disc mount
• 135 x 9 mm spacing
• Quick-release axle

 

Comfortable and Controlled Cockpit

 

The Rockhopper Comp cockpit is designed to provide responsive handling and a stable riding position.

 

The alloy mini-rise handlebar helps riders maintain control on technical terrain, while Specialized Trail lock-on grips provide a secure and comfortable connection to the bike.

 

Cockpit Specifications

 

• 3D-forged alloy stem
• 31.8 mm stem clamp diameter
• 7-degree stem rise
• Alloy mini-rise handlebar
• 15 mm handlebar rise
• 9-degree backsweep
• 31.8 mm handlebar diameter
• Specialized Trail lock-on grips

 

Specialized Bridge Sport Saddle

 

The Specialized Bridge Sport saddle is designed to balance support, comfort, and efficient pedaling.

 

Saddle width varies by bike size to help provide an appropriate fit for different riders.

 

Seating Specifications

 

• Specialized Bridge Sport saddle
• Steel saddle rails
• 143 mm or 155 mm saddle width
• Alloy seatpost
• Two-bolt saddle clamp
• 30.9 mm seatpost diameter
• Dropper-post-compatible frame
• Alloy quick-release seat binder

 

Platform Pedals Included

 

The Rockhopper Comp includes Specialized platform pedals, allowing the bike to be ridden after professional assembly and safety inspection.

 

Specialized Rockhopper Comp Weight

 

The Specialized Rockhopper Comp weighs approximately:

 

13.32 kg / 29 pounds, 5.8 ounces

 

The listed weight is based on a size Medium bike. Actual weight may vary depending on frame size, wheel size, production tolerances, and component specifications.

 

Specialized Rockhopper Comp Technical Highlights

 

• Lightweight Specialized A1 Premium aluminum frame
• Hydroformed and butted frame tubing
• Internal cable routing
• Dropper-post compatibility
• Stealth rack mounts
• 27.5-inch wheels on XS and Small sizes
• 29-inch wheels on all other sizes
• RockShox Judy Solo Air suspension fork
• Size-specific 80, 90, or 100 mm suspension travel
• SRAM 1x12 Eagle drivetrain
• Wide-range 11–50-tooth cassette
• Clutch-equipped SRAM rear derailleur
• Tektro two-piston hydraulic disc brakes
• Large 180 mm front and rear brake rotors
• Tubeless-ready Specialized alloy rims
• 25 mm internal rim width
• Specialized Ground Control T5 tires
• Sealed-bearing alloy hubs
• Specialized Bridge Sport saddle
• Specialized platform pedals included

 

Who Is the Specialized Rockhopper Comp For?

 

The Rockhopper Comp is an excellent mountain bike for:

 

• Beginner and intermediate mountain bikers
• Recreational trail riders
• Fitness riders
• Riders exploring fire roads and gravel trails
• Riders seeking an affordable SRAM 1x12 mountain bike
• Riders who want an adjustable air-suspension fork
• Commuters who need a durable hardtail mountain bike
• Shorter riders who benefit from 27.5-inch wheels
• Medium and taller riders who prefer 29-inch wheels
• Riders seeking a lightweight aluminum mountain bike
• Riders who want tubeless-ready wheels for future upgrades

 

Buy the Specialized Rockhopper Comp at Bike Attack Santa Monica

 

Shop the Specialized Rockhopper Comp hardtail mountain bike at Bike Attack Santa Monica and receive professional help selecting the correct frame size and wheel size.

 

Our experienced team can help you compare Specialized mountain bikes, evaluate rider fit, set up the RockShox air fork, and select accessories for trail riding, fitness, commuting, or recreation.

 

Every bike purchased from Bike Attack is professionally assembled and safety-checked by experienced bicycle technicians.

 

Visit Bike Attack in Santa Monica, California, serving cyclists throughout Los Angeles, Venice, Marina del Rey, Culver City, Playa Vista, Pacific Palisades, and surrounding Southern California communities.