2013 GT Sensor 4.0

Archived: Frame: Speed Metal Aluminum · Fork: RockShox XC32 TK Coil 120mm

• 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.

Archived: Fork: RockShox XC32 TK Coil 120mm · Rear shock: X-Fusion E1 RL

• 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.
• Inspect the shock shaft and seals, cycle the rear suspension through its travel and check for oil, air loss, binding or unusual top-out and bottom-out noises.
• Hold the rear brake and load the suspension from several directions. Check pivots, bearings and mounting hardware for knock, looseness or side play.
• Ask for dated fork, shock and pivot-service records. A clean exterior does not establish the condition of internal seals, oil, bushings or bearings.

Archived: Shifters: Shimano Alivio · Front derailleur: Shimano Alivio · Rear derailleur: Shimano Alivio · Crankset: FSA CK360 44/32/22 · Bottom bracket: FSA Sealed Cartridge · Cassette: Shimano HG20 11x34t · Rear cogs: 3x9 Speeds · Chain: KMC HG53

• 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: Shimano M395

• Inspect pads and braking surfaces, check the complete cable or hose path, and confirm both controls feel consistent and return cleanly.

Archived: Headset: FSA No. 10 · Handlebar: Alloy Riser Bar · Stem: Alloy · Seatpost: Alloy · Saddle: All Terra Tacoma

• 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.