Hotrock 20 Coaster Boys
Part No.  

Hotrock 20 Coaster Boys

Part No.  
The Hotrock 20 Coaster is designed to be fun, safe, and reliable, with kid-friendly features like dependable brakes and low standover height.
  • Strong and durable alloy wheels can handle years of wear and tear.
  • The alloy V-Brakes provide reliable and excellent stopping power on the trail or on the road.
  • The tough, light, and durable Specialized A1 Premium Aluminum frame is built to last.

Technical Specifications

CHAIN KMC Z510, single speed, anti-drop, 1/2""x1/8""
BOTTOM BRACKET Steel, OPC Ball retainer type
CRANKSET Hi-Ten steel, OPC
SADDLE Specialized Kids, 7mm rails, w/ clamp
SEATPOST Steel, 25.4mm
HANDLEBARS BMX, steel, 10-degree backsweep, 4-degree upsweep, 130mm rise, 22.2mm
GRIPS Specialized, Kraton, closed end, 105mm
STEM Ahead, alloy, 1-1/8""
FRONT HUB Steel, 3/8"" axle, 36h
REAR HUB Steel, coaster brake, nutted axle, 36h
INNER TUBES Standard, Schrader valve
SPOKES Stainless, 14g
FRONT TIRE Specialized Rhythm Lite, 2.0""
RIMS 20"", alloy single wall, pin joint, 36h
REAR TIRE Specialized Rhythm Lite, 2.0""
BRAKE V-brake, alloy, linear pull
PEDALS Nylon, BMX style, loose ball bearings, 9/16"", w/ reflectors
SEAT BINDER Alloy, 31.8mm
HEADSET Ahead, 1/8"" sealed cartridge bearings
FORK Hi-Ten steel, 1-1/8"" threadless steerer, 3/8"" axle dropouts
FRAME Specialized A1 Premium Aluminum, 20"" singlespeed coaster, formed top tube/down tube, forged horizontal dropouts