2026 X-LAB ST5+

Archived: 2026 X-LAB ST5+ · Electric-assist · Published sizes: M, L

• 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: XDS X6 Alloy Frame, UDH Compatible · Fork: XDS Suspension Fork, Coil Spring, 80mm Travel; 110x15mm Thru-axle

• 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.

Archived: Fork: XDS Suspension Fork, Coil Spring, 80mm Travel; 110x15mm Thru-axle

• 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: Shifters: Shimano Cues 9-Speed · Rear derailleur: Shimano Cues RD-U4000, 9-Speed · Crankset: Branta Alloy Crankset, 46T, Narrow-wide Teeth · Cassette: Shimano CS-LG300 11-46T, 9-Speed · Chain: KMC E-GLIDE-S

• 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: Branta EC4D Hydraulic E-Bike Brake, w/ Cutoff Switch, 3 Finger Lever; 4 Piston Caliper; Rotors: Branta PN28, F:180mm R:180mm

• Squeeze each lever firmly. It should feel consistent and return cleanly. Check levers, hoses and calipers for fluid, inspect pad thickness and contamination, and examine rotors for wear or bending.
• 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: Wheels: Branta Alloy E-Bike Wheelset · Front tire: CST CTC-06, 27.5’’x2.4, 30TPI, w/ Reflective Stripe; Max Tire Clearance: 2.4" · Rear tire: CST CTC-06, 27.5’’x2.4, 30TPI, w/ Reflective Stripe; Max Tire Clearance: 2.4"

• 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: Branta Alloy Integrated, w/ Display & Front light, 680mm; Width, 90mm Length, 6 Degree Rise, 15 Degree Backsweep · Stem: Branta Alloy Integrated, w/ Display & Front light, 680mm; Width, 90mm Length, 6 Degree Rise, 15 Degree Backsweep · Seatpost: XDS 31.6mm Alloy Seatpost , 350mm Length · Saddle: Branta C301

• 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.

Archived: Motor: XDS Mid-drive X800 Motor, 250 Watt Continuous; Rated Power, 470 Watt Peak Power, 95Nm Peak Torque, Dual-sided Torque Sensor · Battery: XDS Rechargeable Li-ion Battery, 619Wh, LG Battery Cells, 3A Charger (0-100% 5hr)

• Inspect the battery case, mount, lock and electrical contacts for cracks, impact, corrosion, swelling, overheating marks or looseness. Confirm the battery charges normally.
• Confirm the correct charger, battery keys and removable system parts are included. Check charger cables and connectors for damage or improvised repairs.
• Power the system on from cold, check the display for warnings, and test every assist mode. Assistance should engage and stop predictably without intermittent cutouts or abnormal motor noise.
• Ask for available battery-health, cycle-count, diagnostic and firmware records. Confirm that replacement batteries and system support remain available before agreeing on value.

• 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.