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
Geometry

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

Build
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
Components
CrankHi-Ten steel, 76mm, 36T
ChainKMC Z510, single-speed, anti-drop, 1/2"x1/8"
BrakesCoaster brake
Wheels
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