Giant · Reign SX

Reign SX

2025

$4,000.00

Manufacturer price · US market. Not a local price.

Giant Reign SX
Giant Contact SL TR35Handlebar
Giant RomeroSaddle
ALUXX SL-grade aluminum front and rearFrame
RockShox Vivid BaseRear shock
RockShox BoXXer · 190 mmFork
TRP EVO DH-R · 220 mm / 200 mmBrakes
microSHIFT Advent XDrivetrain
F] Maxxis Assegai · 63.5 mmTyres

Tap a number to see the part.

Giant Contact SL TR35

Handlebar

The handlebar and stem are where your hands steer the bike. Their width and length set how upright or stretched out you sit.

Giant Romero

Saddle

The saddle and seatpost carry your weight. The height of the seatpost sets your pedalling position.

ALUXX SL-grade aluminum front and rear

Frame

The frame is the bike's backbone: every other part is fixed to it. Its material and shape decide its weight and how it feels to ride.

RockShox Vivid Base

Rear shock

The rear shock lets the back wheel move over bumps. Its travel is how far the rear wheel can move; it is tuned to the rider's weight.

RockShox BoXXer · 190 mm

Fork

The fork holds the front wheel. A suspension fork absorbs bumps at the front; its travel is how far it can compress.

TRP EVO DH-R · 220 mm / 200 mm

Brakes

Brakes slow the bike. Disc brakes squeeze a rotor fixed to the wheel hub; rim brakes squeeze the wheel rim itself.

microSHIFT Advent X

Drivetrain

The drivetrain turns your pedalling into motion: the cranks, the chain, the cassette and the derailleur that changes gear.

F] Maxxis Assegai · 63.5 mm

Tyres

Tyres are the bike's only contact with the ground. Their width and tread decide grip, comfort and rolling speed.

© Giant Manufacturing Co., Ltd.

Equipment

Partial coverageChecked: September 10, 2026Manufacturer page
Fork brand
RockShox
Source text
  • “RockShox BoXXer, Charger 3 RC damper, 190mm, 20x110, custom tuned for Giant” — Fork
Fork travel
190 mm
Source text
  • “RockShox BoXXer, Charger 3 RC damper, 190mm, 20x110, custom tuned for Giant” — Fork
Front brake type
Hydraulic disc
Source text
  • “TRP EVO DH-R, hydraulic, TRP rotors [F]220mm, [R]200mm” — Brakes
Front brake rotor diameter
220 mm
Source text
  • “TRP EVO DH-R, hydraulic, TRP rotors [F]220mm, [R]200mm” — Brakes
Rear brake type
Hydraulic disc
Source text
  • “TRP EVO DH-R, hydraulic, TRP rotors [F]220mm, [R]200mm” — Brakes
Rear brake rotor diameter
200 mm
Source text
  • “TRP EVO DH-R, hydraulic, TRP rotors [F]220mm, [R]200mm” — Brakes
Front tyre brand
Maxxis
Source text
  • “[F] Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR [R] Maxxis Assegai 27.5x2.5 WT, 3C MaxxGrip, DD, TR tubeless” — Tires
Front tyre width
63.5 mm
Source text
  • “[F] Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR [R] Maxxis Assegai 27.5x2.5 WT, 3C MaxxGrip, DD, TR tubeless” — Tires
Rear tyre brand
Maxxis
Source text
  • “[F] Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR [R] Maxxis Assegai 27.5x2.5 WT, 3C MaxxGrip, DD, TR tubeless” — Tires
Rear tyre width
63.5 mm
Source text
  • “[F] Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR [R] Maxxis Assegai 27.5x2.5 WT, 3C MaxxGrip, DD, TR tubeless” — Tires
Frame material
Aluminium
Source text
  • “Big hits and all-out descents. This trail-crushing enduro machine delivers confidence and control for the rowdiest terrain. Its mixed wheel size, with a 29-inch front and 27.5-inch rear, blends stability and speed with agility that pops.” — 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” — Frame
Chainring teeth
32
Source text
  • “Praxis Cadet HD M24, 32t, 165mm, 55mm chainline” — Crankset

Components

Sizes
M, L, XL
Colours
Moonstone
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
Grips
Giant Tactal Pro Single
Stem
TruVativ Descendant Direct Mount 35, 50mm
Seatpost
Giant Contact, 30.9mm, 400mm
Saddle
Giant Romero
Pedals
Shifters
microSHIFT Trail Trigger Pro, 1x10
Front derailleur
N/A
Rear derailleur
microSHIFT Advent X
Brakes
TRP EVO DH-R, hydraulic, TRP rotors [F]220mm, [R]200mm
Handlebar widthM
800 mm
Handlebar widthL
800 mm
Handlebar widthXL
800 mm
Brake levers
TRP EVO DH-R
Stem lengthM
50 mm
Stem lengthL
50 mm
Stem lengthXL
50 mm
Cassette
microSHIFT Advent X, 11-48
Crank lengthM
165 mm
Crank lengthL
165 mm
Crank lengthXL
165 mm
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
Hubs
[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
Extras
tubeless prepared, 2.5" max tire size, 36t max chainring size, MRP AMG CS chain guide
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.

Geometry

Frames drawn: Giant Reign SX · M.
Giant Reign SX · M
MeasureMLXL
WheelsF 29 | R 27.5F 29 | R 27.5F 29 | R 27.5
425 mm450 mm475 mm
Seat Post Insertion Depth383 mm308 mm333 mm
77.9°77°77°
588 mm621 mm653 mm
105 mm115 mm120 mm
63.1°63.1°63.1°
56 mm56 mm56 mm
Trail129.8 mm130 mm130 mm
1,228 mm1,283 mm1,316 mm
443 mm443 mm443 mm
25 mm25 mm25 mm
635 mm644 mm648 mm
452 mm472 mm503 mm
Standover737 mm750 mm766 mm