2006 GT Double Down

Archived: 2006 GT Double Down · Cruiser · 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: TIG-welded · Fork: Custom designed dual crown chopper fork · Aluminum/magnesium

• 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: Crankset: AA chrome plated tubular crankset with Kustom Kruiser laser etched logo, Maltese Cross 5mm thick CNC cut one piece heat tre teeth · Bottom bracket: European size sealed cartridge bearing · Rear cogs: 1-speed, 22 teeth · Chain: Chrome Plated 3/32 with heat treated links

• Check chain tension and chainline, rotate the drivetrain through a full revolution and confirm the rear axle or tensioning hardware cannot slip.
• 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: Tektro IO cable actuated disc brake with custom CP rotor front/Shimano coaster rear brakes, Kustom Kruiser forged levers

• Check both cables and housings for corrosion, fraying or drag. Confirm each caliper releases cleanly, then inspect pad thickness, rotor wear and rotor alignment.
• 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: Front: 26", Rear: 24" wheels · Rims: Front: Super high polish aluminum, Rear: Ultrawide 4x6 · Hubs: Front: aluminum disc Q/R, Rear: Shimano 3 speed coaster brake · Front tire: Front: 26 x 1.95" Dyno Fireball with custom flame pattern, Rear: 24 x 3.10" Dyno Fireball "4x6" with custom flame pattern

• 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: 1 1/8" Sealed black anodized · Handlebar: Custom designed heat treated aluminum with Kustom Kruiser laser etch · Stem: 4 bolt black anodized, CNC, macine, heat treated aluminum with KK logo · Saddle: Kustom Kruiser full leather chopper seat with steel reinforcement · Pedals: Aluminum BMX style

• 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.