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Specialized Riprock Coaster 12 – 2019


In stock


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With their Riprock Coaster 12, riding gets boiled down to its simplest element—fun. And to make sure of it, Specialized designed the bike with tons of cool features that are easy for your little ones to use, like a coaster brake for simple stopping, wide 12×2.3 tires that increase stability and confidence, and tough components that will stand up to years of abuse. It’s the perfect bike for your little ripper to start getting out on the trail with—we just wish that Specialized had one when Specialized were kids.


BOTTOM BRACKET Steel, loose ball bearings
CHAIN KMC Z510, single-speed, anti-drop, 1/2″x1/8″
CRANKSET Hi-Ten steel, 76mm

FORK Hi-Ten, 1″ threaded steerer

SADDLE Specialized Kids’ Henge
SEAT BINDER Bolt-type, 28.6mm
SEATPOST Steel, 22.2mm
HANDLEBARS BMX, steel, 10-degree backsweep, 4-degree upsweep, 65mm rise, 470mm width, 22.2mm
GRIPS Specialized, slip-on

FRONT HUB Bolt-on, 95mm spacing, loose ball bearings, 16h
REAR HUB Coaster brake, bolt-on, loose ball bearings, 110mm spacing, 16T cog, 16h
SPOKES Stainless, 14g
RIMS 12″ alloy, 16mm depth, 21mm internal width
FRONT TIRE Rhythm Lite, 30 TPI, wire bead, 12×2.3″
REAR TIRE Rhythm Lite, 30 TPI, wire bead, 12×2.3″

REAR BRAKE Coaster brake

PEDALS Nylon platform w/ reflectors

FRAME Specialized A1 Premium Aluminum
Crank Length 3in
Stem Length 35mm
Seatpost Length 190mm
Saddle Width 110mm
Handlebar Width 470mm
Reach 222mm
Top Tube Length, Horizontal 350mm
Stack 274mm
Wheelbase 603mm
Chainstay Length 272mm
Front Center 331mm
BB Drop 11mm
Seat Tube Angle 71°
Head Tube Angle 70°
Head Tube Length 80mm
Seat Tube Length, BB Center to Top 170mm
Fork Rake 5mm
Standover Height 365mm
Trail 53mm