2015 Specialized Hotrock 20 6-Speed Street Boys

Archived: 2015 Specialized Hotrock 20 6-Speed Street Boys · Youth · Published sizes: One Size

• Confirm the frame markings and seller description match this archived model. Note every component that differs from the published build.
• Record the frame serial number. It should be legible, unaltered and consistent with the seller’s ownership history.
• Find the size marking on the bicycle and confirm the fit before judging the condition or price.

Archived: Frame: Specialized A1 Premium Aluminum, 20", formed toptube/downtube, forged dropouts, replaceable alloy derailleur hanger · Fork: Alloy, straight blade, 1-1/8" steerer · Aluminum

• Look for dents or shape changes and inspect the edges of welds around the head tube, bottom bracket, seat cluster and suspension mounts for hairline cracks.
• Stand behind and in front of the bicycle to look for obvious frame, fork or wheel misalignment. Ask directly about crashes, transport damage and repairs.
• Inspect the fork crown, blades, dropouts and visible steerer area. Check that it is straight, securely installed and free of cracks or impact damage.

Archived: Group: Youth mix · Shifters: Shimano Revo-Shift, 6-speed · Rear derailleur: Shimano, 6-speed, short cage, direct mount · Crankset: Forged alloy arms, w/ double outer chainguard, 36t steel · Bottom bracket: 68x119mm, semi-cartridge, w/ bolts · Rear cogs: Shimano, 6-speed freewheel, 14-28 · Chain: KMC HV500, 1/2"x3/32"

• Shift through every available gear under light load. Hesitation, skipping or inconsistent indexing can reflect wear, damage, poor adjustment or mismatched replacement parts.
• Measure chain wear with a compatible gauge and inspect chainring, cassette or freewheel teeth. A new chain does not rule out wear in the remaining drivetrain.
• Turn the cranks slowly, feel for rough bearings and check for side-to-side play. Inspect crank arms, chainring bolts and pedal threads for looseness or damage.

Archived: Brakes: Die-cast alloy V-brake, 60mm pads

• Inspect pads, cables and housings, then examine both rim braking surfaces for concavity, cracking or heavy wear. Confirm each caliper returns and centers correctly.
• Before riding, test every installed brake separately at walking speed. Each should stop firmly and release cleanly without its control reaching the end of its usable travel.

Archived: Wheel size: 20 · Rims: 20", alloy single wall, pin joint, 32h · Hubs: Alloy, 3/8" axle, loose ball, dual lock nuts w/ 17mm contact side, nutted, 32h, Alloy, loose ball, dual lock nuts w/ 17mm contact side, steel nutted, 32h · Front tire: Specialized Nimbus, 30TPI, wire bead, Flak Jacket protection, 20x1.5"

• Spin both wheels and watch for side-to-side and vertical movement. Check spoke tension, rim condition and hub play.
• Inspect both tire casings for cuts, cracking, plugs, bulges or exposed threads and confirm the installed sizes are safe for the rims and available frame and fork clearance.
• Remove and reinstall or closely inspect both wheel-retention systems. Axles or quick releases should tighten correctly with undamaged threads, hardware and dropouts.

Archived: Headset: Ahead, 1/8" sealed cartridge bearings · Handlebar: Kid's riser, steel, 10-degree backsweep, 4-degree upsweep, 25mm rise, 25.4mm · Stem: Ahead, forged alloy, 4-bolt, 20-degree rise · Seatpost: Alloy, single bolt, 27.2mm · Saddle: Specialized Kids, 7mm rails, w/ bumper · Pedals: Composite platform, w/ reflectors, 9/16"

• Apply the front brake and rock the bike to check for headset play or notchiness. Inspect the stem, handlebar and clamp zones, then confirm every fastener and control is secure.
• Check that the seatpost moves for adjustment and that the saddle, post and clamp hold securely without cracks, severe corrosion or damaged hardware.

• Before riding, confirm both wheels are secure, tires are safe, both brakes function, and the headset, handlebar, stem, cranks and pedals have no looseness.
• Begin at low speed. Test steering, braking and shifting progressively, then load the drivetrain and suspension only after the basic safety checks pass.
• Listen and feel for repeated knocks, grinding, skipping, brake pulsation or movement at joints. Stop the test if the bicycle cannot be controlled safely.