Hotrock 20 Pro
Part No.  

Hotrock 20 Pro

Part No.  
This singletrack ripper is fully up to any trail task asked. With SRAM drivetrain and Shimano Deore hydraulic disc brakes this bike will get the kids tackling the toughest trails at an early age.
  • 20" A1 Premium Aluminum frame with low standover height plus 65mm-travel fork with preload adjust for all-terrain fun
  • Tektro dual piston hydraulic disc brakes provide powerful and safe stopping power
  • Specialized Roller tires provide great grip for dirt
  • Lightweight alloy handlebar and stem puts kids in a comfortable and confident position
  • SRAM X7 9-speed rear derailleur with SRAM X5 shifters provide confident, crisp shifting
  • Kid's Body Geometry saddle is durable, comfortable, and fits young riders perfectly

Technical Specifications

BOTTOM BRACKET Sealed bearings, 68mm shell
CRANKSET Forged alloy arms, w/ single outer chainguard
CASSETTE Sunrace, 9-speed, 11-32
CHAINRINGS 36T, steel, w/ chainguard
REAR DERAILLEUR SRAM X7, 9-speed, short cage
FRONT HUB Forged alloy, double-sealed, ground race, QR, 36h
REAR HUB Alloy disc, Hi Lo flange, sealed bearings, steel cassette body, 36h
INNER TUBES Standard Schrader valve
SPOKES Stainless, 14g (2.0mm)
FRONT TIRE Specialized Roller, 20x2.125"", wire bead, 30TPI
RIMS Disc 20"", alloy double-wall, pin joint, 36h
REAR TIRE Specialized Roller, 20x2.125"", wire bead, 30TPI
SADDLE Specialized Kids, 7mm rails, w/ clamp
SEATPOST Alloy, single bolt, 27.2mm
STEM Forged alloy, 40mm, 31.8mm clamp
HANDLEBARS Flat bar, butted alloy, 600mm wide, 10-degree backsweep, 4-degree upsweep, 31.8mm
GRIPS Specialized, Kraton, Revo type
FRONT BRAKE Tektro HD-M330, hydraulic disc, dual piston, Light Wave style rotor, 160mm rotor
BRAKE LEVERS Tektro, hydraulic lever
REAR BRAKE Tektro HD-M330, hydraulic disc, dual piston, Light Wave style rotor, 160mm rotor
PEDALS Composite platform, w/ reflectors, 9/16""
HEADSET 1-1/8"" threadless, cartridge, w/ seals
SEAT BINDER Forged alloy, single bolt, 31.8mm
FORK SR Suntour XCR-LO, 1pc. alloy lower, air spring w/ preload adj., lockout, post disc mount
FRAME Specialized A1 Premium Aluminum, 20"", formed toptube/downtube, forged dropouts, replaceable alloy derailleur hanger, 65mm travel


Geometry Chart

- Geometry

Top Tube Length (Actual) 449mm 463mm
Top Tube Length (Horizontal) 465mm 465mm
Seat Tube Length, Center to Top 279mm 279mm
Standover Height 555mm 514mm
Wheel Base 916mm 916mm
Bottom Bracket Drop 20mm 20mm
Chainstay Length 390mm 390mm
Bottom Bracket Height 237mm 237mm
Seat Tube Angle 72° 72°
Rake 40mm 40mm
Head Tube Angle 69° 69°
Head Tube Length 110mm 110mm