2025 Norco Sight A3 150 MX All Mountain Dual Suspension Mountain Bike

Whether you’re carving down steep loam lines, dropping in for an enduro stage, or heading into the backcountry for an all-day epic, the all-new Sight A3 150 MX has you covered. Its high-pivot Horst Link suspension layout, idler pulley, and VPSHP design deliver next-level confidence on the descents and efficient climbing performance—making it equally at home for enduro racing or epic backcountry adventures. With 160 mm front and 150 mm rear travel, this Sight borrows the best of the Range platform, tightening it up into a light, pedal-friendly, maneuverable package.

And now, every Sight model includes a OneUp EDC Lite tool stored in the steerer tube, so you’re always prepared on the trail.

Frameset

• Frame: Aluminum, High Pivot Horst Link, 150 mm travel, UDH, Hangerless Interface Compatible, Ride Aligned™
• Fork: RockShox Lyrik Base Rush RC, 160 mm travel, 44 mm offset
• Rear Shock: RockShox Deluxe Select+ Air, 205 × 60 mm (Trunnion)

Drivetrain

• Rear Shifter: Shimano Deore SL-M6100, 12-speed
• Rear Derailleur: Shimano Deore RD-M6100, 12-speed
• Crankset: Shimano Deore FC-MT6120-1, 32T, CL55
  • 165 mm (S1, S2)
  • 170 mm (S3, S4, S5)
• Bottom Bracket: Shimano Sealed Bearing, BSA 73 mm
• Cassette: Shimano Deore CS-M6100-12, 10–51T (12-speed)
• Chain: Shimano Deore CN-M6100, 12-speed
• Chain Guides: Norco Idler Guide & Lower Guide

Brakes

• Front Brake: Shimano Deore MT520, 4-piston caliper, metallic pads, 203 mm Shimano RT-64 rotor (Center Lock)
• Rear Brake: Shimano Deore MT520, 4-piston caliper, metallic pads, 180 mm Shimano RT-64 rotor (Center Lock)
• Brake Levers: Shimano Deore MT520

Components

• Handlebar: Norco 6061 alloy, 800 mm width, 25 mm rise
• Stem: e*thirteen, 40 mm length, 35 mm clamp
• Seatpost: TranzX YS105, 34.9 mm
  • 150 mm drop (S1)
  • 170 mm drop (S2)
  • 200 mm drop (S3, S4)
  • 230 mm drop (S5)
• Headset: FSA No.57 ZS, sealed bearing, tapered (ZS44/28.6 | ZS56/40)
• Saddle: WTB Volt 250 Sport
• Grips: Ergon GD1
  • Slim (S1, S2, S3)
  • Standard (S4, S5)
• Seatpost Clamp: Norco Alloy Nutted Clamp, 38.5 mm ID
• On-Bike Tool: OneUp EDC Lite

Wheels

• Front Wheel:
  • Hub: Shimano SLX, 15×110 mm, 32H, Center Lock
  • Rim: Stan’s Flow D, 29 ”, 32H, 29 mm ID
  • Tire: Maxxis Assegai, 3C MaxxGrip EXO+, 29 × 2.5″, folding
• Rear Wheel:
  • Hub: Shimano FH-MT510, 12×148 mm Boost, Micro Spline, 32H, Center Lock
  • Rim: Stan’s Flow D, 27.5 ”, 32H, 29 mm ID
  • Tire: Maxxis Minion DHR II, 3C MaxxTerra EXO+, 27.5 × 2.4″, folding
  • Skewer: 148 mm × 12 mm TA, L174, TL13, M12×1.0
• Spokes: Shadar stainless steel
• Valves: Stan’s Tubeless Valves
• Sealant: Stan’s Sealant

Weight

• Complete Bike: 17.8 kg (39.4 lbs)
• Measured Size: S3