Rockhopper Expert EVO 650b
Part No.  

Rockhopper Expert EVO 650b

Part No.  
Rockhopper Expert EVO 650b
Technical Specifications
Trails were built to be ridden hard, and that's what the Rockhopper EVO does best. With a 120mm fork, 650b wheels, slightly more relaxed geometry, and Tektro Gemini disc brakes, the EVO will tame the toughest trails.
  • Tektro Gemini hydraulic disc brakes for consistent, all-weather stopping power
  • SRAM X7 Type 2, 10-speed, rear derailleur for precise shifting
  • Custom 2x10 crankset and drivetrain for efficient and precise shifting
  • Stout XC 650b aluminum rims with 21mm inner width rims are trail ready
  • 120mm-travel custom SR Suntour XCR-AIR fork w/ exclusive Multi-Circuit Damping for smooth performance
  • Specialized Ground Control 2.3" tires w/ a fast-rolling yet grippy tread
  • A1 Premium Aluminum frame w/ ORE downtube for a lighter, more compliant, and durable bike

Technical Specifications

CHAIN KMC X10, 10-speed, w/ reusable MissingLink
BOTTOM BRACKET 24mm BSA for 2 pc. design, 73mm
CRANKSET Specialized Stout XC, 2x10, 2 pc., 24mm spindle, 36/22, anti-corrosion hardware
FRONT DERAILLEUR SRAM X5, 2x10, high mount
SHIFT LEVERS SRAM X5, 2x10, trigger
CASSETTE Sunrace, 10-speed, 11-36
REAR DERAILLEUR SRAM X7 Type 2, 10-speed, medium cage
FORK Custom SR Suntour XCR-AIR 650b, w/ custom Multi-Circuit Damping, mag lowers, air spring, Hi-Ten 32mm stanchions, tapered alloy steerer, hydraulic lockout w/ preload adjust, disc mount, size-specific 100/120mm travel
FRONT HUB Specialized Hi Lo disc, alloy, RCC bearing system, QR, 32h
REAR HUB Specialized Stout XC disc, alloy, RCC bearing system, QR, 32h
INNER TUBES Standard, presta valve
SPOKES Stainless, 14g, black
RIMS Stout XC, 650b disc, alloy double-wall, pin joint, 26mm inner width, 32h
FRONT TIRE Specialized Ground Control Sport, 60TPI, wire bead, 650bx2.3""
REAR TIRE Specialized Ground Control Sport, 60TPI, wire bead, 650bx2.3""
SADDLE Body Geometry mountain, steel rails, 143mm
SEATPOST Alloy, 2-bolt, micro-adjust, 12.5mm offset, 30.9mm, anti-corrosion hardware
STEM Specialized 3D forged alloy, 4-bolt, 6-degree rise, anti-corrosion hardware
HANDLEBARS Specialized, low rise bar, double butted 6061 alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 31.8mm
GRIPS Specialized Body Geometry XCT, Kraton w/ gel, lock-on, closed end, 132mm
FRONT BRAKE Tektro Gemini, hydraulic disc, resin pads, I-spec compatible
BRAKE LEVERS Tektro Gemini, hydraulic, reach adjust, I-spec compatible
REAR BRAKE Tektro Gemini, hydraulic disc, resin pads, I-spec compatible
PEDALS Alloy, 1 pc. body, 9/16"", w/ reflectors
HEADSET 1-1/8"" upper, 1-1/2"" lower, Campy style, integrated sealed cartridge bearings
SEAT BINDER Alloy, nylon/glass fiber washer, QR, 34.9mm
FRAME Specialized A1 SL Aluminum, EVO 650b geometry, fully butted tubesets, ORE downtube, tapered headtube, forged dropouts w/ disc mount, replaceable alloy derailleur hanger


Geometry Chart

Rockhopper - Geometry

Crank Length 170mm 175mm 175mm 175mm 175mm
Stem Length 60mm 60mm 70mm 70mm 80mm
Handle-Bar Width 740mm 740mm 740mm 740mm 740mm
Reach 382mm 400mm 410mm 427mm 449mm
Stack 583mm 597mm 612mm 621mm 630mm
Wheelbase 1058mm 1081mm 1097mm 1117mm 1143mm
Seat-Tube Length, B-B Center to Top 340mm 400mm 445mm 450mm 510mm
Bike Stand-Over Height 723.5mm 748mm 789.5mm 813mm 843mm
Head-Tube Length 100mm 95mm 110mm 120mm 130mm
Top-Tube Length, Horizontal 560mm 594mm 609mm 629mm 654mm
Front-Center 636mm 659mm 674mm 695mm 720mm
Head-Tube Angle 69° 69° 69° 69° 69°
Seat-Tube Angle (Effective) 73° 72° 72° 72° 72°
Trail 89mm 89mm 89mm 89mm 89mm
Chain-Stay Length 426mm 426mm 426mm 426mm 426mm
B-B Height 305mm 305mm 305mm 305mm 305mm
Seat-Tube Angle (Actual) 73° 72° 72° 72° 72°
B-B Drop 44mm 44mm 44mm 44mm 44mm
Seat-Post Length 300mm 350mm 350mm 400mm 400mm