Giant Reign Advanced 1

Giant Reign Advanced 1 – Enduro Performance Without Limits

Go fast, get rowdy, and push your limits on the Giant Reign Advanced 1, a race-bred enduro mountain bike built to dominate aggressive terrain. Featuring a full Advanced Composite chassis developed alongside Giant’s Enduro World Series pros, this hard-charging 29/27.5 mixed-wheel bike delivers confidence, speed, and control when it matters most.

The Maestro rear suspension offers 160mm of ultra-capable travel, paired with a 170mm fork and a longer-stroke trunnion-mounted shock for improved sensitivity, traction, and big-hit performance. An Advanced Forged Composite rocker arm boosts stiffness while keeping weight low, ensuring precise handling at race pace.

With three-position adjustable geometry, flip-chip technology allows you to fine-tune head angle, seat tube angle, and bottom bracket height to match trail conditions, riding style, and wheel setup. Prefer stability and rollover? Run a 29-inch rear wheel. Want a more playful, agile feel? Stick with the 27.5-inch—the choice is yours.

Designed for enduro racing, bike park laps, and aggressive all-mountain riding, the Giant Reign Advanced 1 is built to hit harder, descend faster, and unlock new lines with total confidence.

• Sizes
  S, M, L, XL
• Colours
  Mercury/Raw Carbon
• Frame
  Advanced-grade composite front and rear triangles, 160mm Maestro suspension, flip chip, 12x148mm thru-axle, 27.5 or 29-inch rear wheel compatible, flip chip - Maestro 3, integrated down tube storage
• Fork
  Fox 38 Factory, 170mm, GRIP X2 damper, 15x110 Kabolt X, 44mm offset
• Shock
  Fox Float X2 Factory, 205/62.5, custom tuned for Giant
• Handlebar
  Giant Contact TR35, 800x35mm, 35mm rise
• Grips
  Giant Tactal Pro Single
• Stem
  Giant Contact SL 35 S:40mm, M:40mm, L:40mm, XL:40mm
• Seatpost
  Contact Switch AT dropper, remote S: 110-140mm travel / 30.9 x 395mm
• Saddle
  Giant Romero SL
• Shifters
  SRAM AXS Pod, discrete clamp, 1x12
• Front Derailleur
  N/A
• Rear Derailleur
  SRAM GX Eagle Transmission
• Brakes
  TRP EVO DH-R, hydraulic, TRP rotors [F]220mm, [R]200mm
• Brake Levers
  TRP DH-R EVO, hydraulic
• Cassette
  SRAM GX Eagle Transmission, 10x52
• Chain
  SRAM GX Eagle Transmission
• Crankset
  SRAM GX Eagle Transmission, DUB, 32t, 55mm chainline S:165mm, M:170mm, L:170mm, XL:170mm
• Bottom Bracket
  SRAM DUB, press fit
• Rims
  Giant TRX WheelSystem, carbon, hookless, 30mm inner width, 40mm outer width, 22mm height, Wide Guard Technology
• Hubs
  [F] Giant MTB alloy, six-bolt, [R] Giant MTB alloy, 72 POE (Points of Engagement), six-bolt, XD driver body
• Spokes
  Sapim, 28, straight pull, DBL Technology
• Tires
  [F] Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR [R] Maxxis Minion DHR II 27.5x2.4 WT, 3C MaxxTerra, DD, TR tubeless
• Extras
  tubeless prepared, 2.5" max tire size, 36t max chainring size, MRP AMG CS chain guide, 3M tailgate protector
• Weight
  The most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.