Hotrock 20
Part No.  

Hotrock 20

Part No.  
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Hotrock 20
Overview
Technical Specifications
Geometry

Your little tike might love to ride, but given that they're still growing like a weed, the big-kid-trail-shredder bike can probably wait a few years. That's why we made our Hotrock 20 with plenty of gear range to tackle the neighborhood hills, and enough front end travel to ride beginner's trails confidently.

Of course, it also features a lightweight, yet durable, 20-inch A1 Premium Aluminum frame that's designed to take a hit while they find their legs on the pump track. Chatter and bumps, meanwhile, are handled by the coil-sprung SR Suntour fork's 50mm of travel.

Then there are a whole host of other components that are plenty tough enough to stand up to your little ripper, so you can rest assured that you'll be spending more time riding with your kid and less time waiting in line at the repair counter.

  • Tough, light, and durable, the A1 Premium Aluminum frame is built to stand up to years of tough riding.
  • SR Suntour suspension fork offers 50mm of coil-sprung travel that smooths out bumpy, rough terrain.
  • The 7-speed Shimano Tourney shifts smoothly and is tough enough for abuse.

Technical Specifications

BOTTOM BRACKET
BSA, square taper, E-type 17
FRONT BRAKE
V-brake, alloy, linear pull, tool-less reach adjust brake lever 23
SHIFT LEVERS
Shimano Tourney, Revo, 7-speed 12
REAR BRAKE
V-brake w/ tool-less reach adjust brake lever 24
SPOKES
Stainless, 14g 7
FRAME
Specialized A1 Premium Aluminum, single-butted, unisex frame, replaceable derailleur hanger 1
REAR TIRE
Specialized Renegade, 20x2.1", 26TPI, wire bead 9
HANDLEBARS
60mm, 5-degree backsweep, 25.4mm 19
GRIPS
Specialized, slip-on 20
SADDLE
Specialized Kids 21
FRONT HUB
Alloy, loose ball bearings, bolt type, 32h 5
PEDALS
Nylon platform w/ reflectors 25
REAR DERAILLEUR
Shimano Tourney TX, 7-speed 11
SEATPOST
Alloy, single bolt, 15mm offset, 27.2mm 22
SEAT BINDER
Bolt type, alloy, 31.8mm 3
FORK
SR Suntour XCT-JR, coil spring w/ preload adjust, 50mm of travel, 1-1/8" steerer, quick-release, V-brake and post mount disc compatible 2
INNER TUBES
Schrader valve 10
CASSETTE
Sunrace, 7-Speed, 11-34t 13
CHAINRINGS
34T 16
STEM
20-degree rise, 25.4mm 18
CHAIN
KMC HV500 14
CRANKSET
Forged alloy, square taper, 127mm w/ chainguard 15
REAR HUB
Alloy, 7-speed freehub, loose ball bearings, bolt type, 32h 6
RIMS
20", single wall aluminum, 32h 4
FRONT TIRE
Specialized Renegade, 20x2.1", 26 TPI, wire bead 8

Geometry

Geometry Chart

Hotrock - Geometry

9
  9
Crank Length 127mm
Stem Length 70mm
Seatpost Length 300mm
Saddle Width 134mm
Handlebar Width 580mm
Reach 320mm
Top Tube Length, Horizontal 465mm
Stack 448mm
Wheelbase 916mm
Chainstay Length 390mm
Front Center 527mm
BB Drop 20mm
BB Height 183mm
Seat Tube Angle 72°
Head Tube Angle 69°
Seat Tube Length 279mm
Head Tube Length 110mm
Bike Standover Height 468mm
Fork Rake/Offset 40mm
Fork Length, Full 352mm
Trail 35mm