2004 Specialized Hotrock 20 6-speed boys

A first real mountain bike for 4’0″-4’5″ boys (5-8 years old).  This bike has a 6-speed Shimano drivetrain, suspended front shocks with 51mm travel, and awesome new all-terrain 20×2.125″ fat tires. This little bike was abused and neglected. The frame was covered with paint splashes, tires destroyed by skidding, and most components were badly rusted. I removed all rust, deep-cleaned, and lubed/dialed in all components.

This is Amias’s bike now.

Before & After Pics

Restoration Pics

Original Components

  • Frame: Chromoly steel, TIG-welded
  • Fork: RST, Hi-tensile steel, single crown, 51mm travel
  • Brakeset: Aluminum linear-pull brakes, aluminum linear-pull levers
  • Shift Lever: Shimano Revo 6-speed
  • Rear Derailleur: Shimano Tourney TY-22
  • Crankset: Specialized aluminum, 36 teeth
  • Pedals: Resin
  • Bottom Bracket: Sealed 68mm width, 130mm spindle length
  • Rear Cogs: 6-speed, 14 – 28 teeth
  • Chain: 1/2 x 3/32″
  • Seatpost: Aluminum, 27.2mm diameter
  • Saddle: Specialized Expert
  • Handlebars: riser steel
  • Stem: Specialized steel
  • Headset: 1-1/8″ threadless sealed mechanism
  • Wheels: 20″ wheels, aluminum hubs and rims, stainless spokes, brass nipples.
  • Tires: 20×2.125″ Specialized Roller