Giant Reign SX Mountain Bike 2026

The Maestro suspension platform delivers 165mm of progressive rear travel paired with a 190mm fork, engineered to absorb demanding enduro conditions with composure. The trunnion-mounted shock features an extended 65mm stroke for improved mid-stroke support, whilst the Advanced Forged Composite upper rocker arm enhances rigidity and reduces frame mass, creating a more responsive and efficient platform for sustained technical riding.

The flip chip system enables geometry customisation across two distinct configurations, allowing you to dial in either a 63.1° or 63.5° head angle paired with corresponding 77.9° or 78.3° seat tube angles. This adjustment shifts bottom bracket drop between 25mm and 19mm (medium frame), giving you precise control over steering responsiveness and stability to match specific trail characteristics and your preferred riding approach.

The 29-inch front wheel delivers superior rolling momentum and predictable handling through technical terrain, whilst the 27.5-inch rear wheel enhances pivot responsiveness and cornering precision. This mixed-wheel geometry optimises both trail-eating efficiency and playful bike control, allowing riders to maintain speed through rough sections whilst maintaining the agility needed for dynamic line selection and feature engagement.

• Frame ALUXX SL-grade aluminum front and rear triangles, 165mm Maestro suspension, flip chip, 12x148mm thru-axle, 27.5-inch rear wheel compatible, flip chip - Maestro 3, integrated down tube storage
  
• Fork RockShox BoXXer, Charger 3 RC damper, 190mm, 20x110, custom tuned for Giant
  
• Shock RockShox Vivid Base, lockout, 205/65
  
• Handlebar Giant Contact SL TR35, 800x35mm, 20mm rise
  
• Stem TruVativ Descendant Direct Mount 35, 50mm
  
• Seatpost Giant Contact, 30.9mm, 400mm
  
• Saddle Giant Romero
  
• Pedals PEDALS NOT SUPPLIED
  
• Shifters microSHIFT Trail Trigger Pro, 1x10
  
• Rear Derailleur microSHIFT Advent X
  
• Brakes TRP EVO DH-R, hydraulic, TRP rotors [F]220mm, [R]200mm
  
• Brake Levers TRP EVO DH-R
  
• Cassette microSHIFT Advent X, 11-48
  
• Chain KMC X-10
  
• Crankset Praxis Cadet HD M24, 32t, 165mm, 55mm chainline
  
• Bottom Bracket Praxis, press fit
  
• Rims Giant TRA 2 wheelset, 6061 alloy, hookless, 30mm inner width, 40mm outer width, 21mm height, Wide Guard Technology
  
• Hub s[F] Giant MTB alloy, six-bolt, [R] Giant MTB alloy, 72 POE (Points of Engagement), six-bolt, HG driver body
  
• Spokes Sapim, 28, J-bend
  
• Tyres [F] Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR [R] Maxxis Assegai 27.5x2.5 WT, 3C MaxxGrip, DD, TR tubeless
  
• Extra stubeless prepared, 2.5" max tire size, 36t max chainring size, MRP AMG CS chain guide