1999 Jamis Explorer

Archived: 1999 Jamis Explorer · Mountain bike, non-suspension · Published sizes: 14.5", 16", 17.5", 19.5", 21.5", womens 16", womens 19"

• 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: Pulse-welded · Fork: · Hi-tensile steel, unicrown crown

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

Archived: Group: Mountain Mix · Shifters: Grip Shift MRX-200 · Front derailleur: Shimano Tourney TY-32, top-pull/clamp-on 28.6mm · Rear derailleur: Shimano Tourney TY-30 · Crankset: SR CW-XR 11, 28/38/48 teeth · Bottom bracket: Chin Haur CH-48, 110mm spindle · Rear cogs: 7-speed, 14 - 34 teeth · Chain: KMC Z-51, 1/2 x 3/32"

• 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: Tektro 823A linear-pull brakes, Tektro RBP-378A levers

• 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: 26" wheels · Rims: Sun Rims Z-19, 32-hole · Hubs: Front: Jou Yu JY-731, Rear: Jou Yu JY-734 · Front tire: 26 x 1.95" Cheng Shin C-1212

• 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" Chin Haur CH-90 · Handlebar: Steel, rise · Stem: Steel · Seatpost: Polygon PM-790, 26.8mm diameter · Saddle: Velo VL-313 · Pedals: Wellgo LU-943

• 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.