Modest component level aluminum frame boys bike
1 × 6 — 6 speed
The 2017 Boy's 6-Speed Hotrock 20 is geared about the same as similar bikes for riding up hills.
The 2017 Boy's 6-Speed Hotrock 20 won‘t keep up with similar bikes while riding downhill or sprinting.
Roll over table below to highlight frame dimensions.
|Frame||Specialized A1 Premium Aluminum, 20", formed top tube/down tube, forged dropouts, replaceable alloy derailleur hanger|
|Fork||SR Suntour, coil spring w/preload adjust, 40mm of travel, 1-1/8" steel steerer, 9mm axle|
|Bottom Bracket||68mmx118mm, semi-cartridge, E-type|
|Stem||Forged alloy, 20-degree rise, 4-bolt, 25.4mm clamp diameter|
|Handlebar||Specialized Kids', steel, 10-degree backsweep, 4-degree upsweep, 25mm rise, 25.4mm|
|Saddle||Specialized Kids', 7mm rails w/bumper|
|Seatpost||Alloy, single bolt, 27.2mm|
|Pedals||BMX-style nylon platform w/reflectors|
|Grips||Specialized, Kraton, Revo type|
|Rear Derailleur||Shimano Tourney, 6-speed|
|Cassette||Shimano Tourney freewheel, 6-speed, 14-28t|
|Chain||KMC HV500, 1/2x3/32"|
|Brakes||V-brake, alloy, linear pull|
|Rims||20", alloy single wall, pin joint, 32h|
|Front Hub||Alloy, 3/8" axle, loose ball bearings, dual lock nuts, 17mm contact side, nutted, 32h|
|Rear Hub||Alloy, loose ball, dual lock nuts, 17mm contact side, steel nutted axle, 32h|
|Tires||Roller, 20x2.125", 30TPI, wire bead|