Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Giant
2025 Giant Reign SX
Estimated used market value
$3,470 - $3,570
Actual value depends on condition, size, and local demand.
Value Guide market data · 2025 Giant Reign SX
12-month projected trend
19%
Direction and magnitude, not judgment
vs. category average
9%
Drops faster than category avg
Price over time - 2025 Giant Reign SX
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
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Overview
About this bike
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. Key Performance Factors: Race-bred suspension Maestro rear suspension eats up enduro terrain with 165mm of smooth, active rear travel matched with a 190mm travel fork. The trunnion mount rear shock has a longer stroke (65mm over 60mm on the previous generation) while the Advanced Forged Composite upper rocker arm adds stiffness and lowers overall frame weight. Adjustable enduro geometry Flip chip adjustability lets you switch between two settings depending on the terrain. You can select a 63.1 or 63.5-degree head angle and corresponding 77.9 or 78.3-degree seat tube angle, resulting in a 25 or 19mm bottom bracket drop (size medium) to fine-tune handling for varying trail conditions and riding style. Mixed wheel size A 29-inch front wheel provides speed, stability and front-end control on rough, technical trails. A 27.5-inch rear wheel adds agility and maneuverability to help riders rail corners, pop over features and show off their style.
Specifications
- Category
- Mountain
- Component Fork
- RockShox BoXXer, Charger 3 RC damper, 190mm, 20x110, custom tuned for Giant
- Component Hubs
- [F] Giant MTB alloy, six-bolt, [R] Giant MTB alloy, 72 POE (Points of Engagement), six-bolt, HG driver body
- Component Rims
- Giant TRA 2 wheelset, 6061 alloy, hookless, 30mm inner width, 40mm outer width, 21mm height, Wide Guard Technology
- Component Size
- Medium, Large, X-Large
- Component Stem
- TruVativ Descendant Direct Mount 35, 50mm
- Product Family
- Reign
- Component Chain
- KMC X-10
- Component Color
- Moonstone
- Component 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
- Component Brakes
- TRP EVO DH-R, hydraulic, TRP rotors [F]220mm, [R]200mm
- Component Saddle
- Giant Romero
- Component Spokes
- Sapim, 28, J-bend
- Component Crankset
- Praxis Cadet HD M24, 32t, 165mm, 55mm chainline
- Component Seatpost
- Giant Contact, 30.9mm, 400mm
- Component Shifters
- microSHIFT Trail Trigger Pro, 1x10
- Component Handlebar
- Giant Contact SL TR35, 800x35mm, 20mm rise
- Component Rear Tire
- [F] Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR [R] Maxxis Assegai 27.5x2.5 WT, 3C MaxxGrip, DD, TR tubeless
- Component Front Tire
- [F] Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR [R] Maxxis Assegai 27.5x2.5 WT, 3C MaxxGrip, DD, TR tubeless
- Component Rear Shock
- RockShox Vivid Base, lockout, 205/65
- Component Tape Grips
- Giant Tactal Pro Single
- Component Wheel Size
- 29-inch front / 27.5-inch rear
- Component Brake Levers
- TRP EVO DH-R
- Component Bottom Bracket
- Praxis, press fit
- Component Rear Derailleur
- microSHIFT Advent X
- Component Accessories Extras
- tubeless prepared, 2.5" max tire size, 36t max chainring size, MRP AMG CS chain guide
- Component Cassette Freewheel
- microSHIFT Advent X, 11-48
- Rear Shock
- RockShox Vivid Base, lockout, 205/65
- Hubs
- [F] Giant MTB alloy, six-bolt, [R] Giant MTB alloy, 72 POE (Points of Engagement), six-bolt, HG driver body
- Rims
- Giant TRA 2 wheelset, 6061 alloy, hookless, 30mm inner width, 40mm outer width, 21mm height, Wide Guard Technology
- Crankset
- Praxis Cadet HD M24, 32t, 165mm, 55mm chainline
- Bottom Bracket
- Praxis, press fit
- Chain
- KMC X-10
- Seatpost
- Giant Contact, 30.9mm, 400mm
- Saddle
- Giant Romero
- Handlebar
- Giant Contact SL TR35, 800x35mm, 20mm rise
- Rear Derailleur
- microSHIFT Advent X
- Rear Tire
- [F] Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR [R] Maxxis Assegai 27.5x2.5 WT, 3C MaxxGrip, DD, TR tubeless
- Stem
- TruVativ Descendant Direct Mount 35, 50mm
- Accessories & Extras
- tubeless prepared, 2.5" max tire size, 36t max chainring size, MRP AMG CS chain guide
- Brake Levers
- TRP EVO DH-R
- Brakes
- TRP EVO DH-R, hydraulic, TRP rotors [F]220mm, [R]200mm
- Fork
- RockShox BoXXer, Charger 3 RC damper, 190mm, 20x110, custom tuned for Giant
- 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
- Shifters
- microSHIFT Trail Trigger Pro, 1x10
- Tape/Grips
- Giant Tactal Pro Single
- Color
- Moonstone
- Size
- X-Large
- Wheel Size
- 29-inch front / 27.5-inch rear
- Spokes
- Sapim, 28, J-bend
- Cassette/Freewheel
- microSHIFT Advent X, 11-48
- Front Tire
- [F] Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR [R] Maxxis Assegai 27.5x2.5 WT, 3C MaxxGrip, DD, TR tubeless
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.