2019 Specialized Riprock Coaster 12

2019 Specialized Riprock Coaster 12
MSRP$220
WheelsAluminum 12″
FrameAluminum
SuspensionRigid
Drivetrain

The 2019 Riprock Coaster 12 is an aluminum frame coaster bike by Specialized.

View on specialized.com

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"
Geometry

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

Size
Stack 274
Reach 222
Stack/Reach Ratio1.23
Top Tube Length 350
Seat Tube Length 170
Seat Tube Angle71.0
Head Tube Length 80
Head Tube Angle70.0
BB Drop 11
Front Center 331
Chainstay Length 272
Wheelbase 603
Rake 5
Trail 53
Standover Height 365
🐐 Measurements listed in millimeters and degrees
MSRP$220
WheelsAluminum 12″
FrameAluminum
SuspensionRigid
Drivetrain
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