2019 Specialized Riprock Coaster 12

Aluminum frame coaster bike

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2019 Specialized Riprock Coaster 12
  • MSRP $220
  • Suspension Rigid
  • Frame Aluminum
  • Fork Steel
  • Wheels 12″ Aluminum

Oh snap! This frame was drawn from the actual bike geometry measurements. Roll over the table below to highlight frame dimensions.

FrameSpecialized A1 Premium Aluminum
ForkHi-Ten, 1" threaded steerer
Bottom BracketSteel, loose ball bearings
HandlebarBMX, steel, 10-degree backsweep, 4-degree upsweep, 65mm rise, 470mm width, 22.2mm
SaddleSpecialized Kids' Henge
SeatpostSteel, 22.2mm
PedalsNylon platform w/ reflectors
GripsSpecialized, slip-on
CrankHi-Ten steel, 76mm, 36T
ChainKMC Z510, single-speed, anti-drop, 1/2"x1/8"
BrakesCoaster brake
Rims12" alloy, 16mm depth, 21mm internal width
SpokesStainless, 14g
Front HubBolt-on, 95mm spacing, loose ball bearings, 16h
Rear HubCoaster brake, bolt-on, loose ball bearings, 110mm spacing, 16T cog, 16h
TiresRhythm Lite, 30 TPI, wire bead, 12x2.3"
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2019 Specialized Riprock Coaster 12