2008 Eastern Bikes Thunderbird

Archived: Frame: TIG-welded · Fork: RST Space Free, 80mm travel · Magnesium/cr-mo, single crown

• Check paint damage, vent holes and accessible internal surfaces for corrosion. Look for dents, bent tubes and cracking around welded or brazed joints.

Archived: Fork: RST Space Free, 80mm travel

• Inspect the fork stanchions for scratches or coating wear, look for oil or dirt rings at the seals, and cycle the fork through its travel while checking for binding or bushing play.
• Ask for dated fork-service records. A clean exterior does not establish the condition of internal seals, oil or bushings.

Archived: Group: Mountain Mix · Crankset: Eastern 3pc Raptor, Eastern Medusa Lite 25t teeth · Bottom bracket: Spanish · Cassette: Cassette driver · Rear cogs: 1-speed, 12 teeth · Chain: KMC 510HX

• 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 Aquila mechanical disc rear brakes, Tektro ML-570 rear 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.

Archived: Wheel size: 26" wheels · Rims: Front: Wienmann HL32, Rear: Kinlin BM25, 32-hole · Hubs: Front: Eastern sealed 20mm disc, Rear: Eastern LB9 · Front tire: Front: 26 x 2.35" Kenda Small Block Eight, Rear: 26 x 2.10" Kenda NPJ 1052

• 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.

Archived: Headset: 1 1/8" internal · Handlebar: Eastern Steel 2.0t · Stem: Eastern Choker · Seatpost: Straight post · Saddle: Eastern Pinner · Pedals: Wellgo 313

• 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.