2017 Specialized Sirrus Disc

Archived: 2017 Specialized Sirrus Disc · Hybrid · Published sizes: S, M, L, XL

• 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, Fitness Geometry, fully-manipulated butted tubing, integrated lower bearing, fender/rack mounts · Fork: Steel, straight blades, IS disc mount, fender/rack mounts · Steel

• 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: Shifters: Shimano EF500, EZ Fire Plus, 8-speed · Front derailleur: Shimano Tourney, top swing, dual pull, 31.8mm band clamp · Rear derailleur: Shimano Altus, 8-speed · Crankset: Stout, forged alloy; chainrings: 48/38/28T w/chainguard · Bottom bracket: BSA, square taper, cartridge bearings · Cassette: Shimano, 8-speed, 11-32t · Chain: KMC X8, 8-speed w/reusable MissingLink

• 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: (F) Mechanical disc, resin pads, 160mm / (R) Mechanical disc, resin pads, 160mm

• 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: Rims: Disc, 6061 aluminum double-wall · Hubs: (F) Specialized disc, double-sealed, loose ball bearings, 9mm QR / (R) Specialized disc, loose ball bearings, for Shimano 8-/9-speed cassettes, QR · Front tire: Nimbus Reflect, 700x32mm, 26TPI, Flak Jacket protection · Rear tire: Nimbus Reflect, 700x32mm, 26TPI, Flak Jacket protection

• 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: Handlebar: Specialized, alloy, 9-degree backsweep, 25.4mm · Stem: Alloy, 4-bolt, 20-degree rise, 25.4mm clamp · Seatpost: Alloy, 12mm offset, 2-bolt clamp, 27.2mm · Saddle: Canopy Sport, steel rails · Pedals: Specialized Fitness platform

• 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.