Giant Reign SE

Name: Giant Reign SE
Brand: Giant

2027 MountainEnduro Manufacturer page

Travel: 180 / 165 mm Fork / rear shock
Wheels: 29″ / 27.5″
Drivetrain: 1 × 12 32t / 10–52t
Gear range: 520%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM High 163–173
SM Mid 163–173
SM Low 163–173
MD Mid 170–181
MD High 170–181
MD Low 170–181
LG Mid 178–189
LG High 178–189
LG Low 178–189
XL Mid 186–198
XL High 186–198
XL Low 186–198

Components

20 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

ALUXX SL-grade aluminum front and rear triangles, 165mm Maestro suspension, flip chip, 12x148mm thru-axle, 27.5 or 29-inch rear wheel compatible, flip chip - Maestro 3, integrated down tube storage Not identified

Suspension

2 parts

Drivetrain

7 parts

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

6 parts

Grips
- Giant
Handlebar
- Giant
Pedals
- GT
Saddle
- Giant
Seatpost

Contact Switch AT dropper, remote S: 110-140mm travel / 30.9 x 395mm M: 140-170mm travel / 30.9 x 470mm L: 170-200mm travel / 30.9 x 530mm XL: 170-200mm travel / 30.9 x 530mm Not identified
Stem
- Giant

Sizes and geometry

12 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD Low

Table

Geometry diagram unavailable

Diagrams for different front and rear wheel sizes are not available yet. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 12 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	434	430	426	450	446	446	470	466	466	501	497	497
Stackmm	622	624	627	636	639	639	645	648	648	650	653	653
Top tube lengthmm	555	555	556	588	589	589	622	623	623	654	655	655
Seat tube lengthmm	400	400	400	425	425	425	450	450	450	475	475	475
Head tube lengthmm	100	100	100	105	105	105	115	115	115	120	120	120
Head tube angle	64.2°	63.9°	63.5°	63°	62.6°	62.6°	63°	62.6°	62.6°	63°	62.6°	62.6°
Seat tube angle	79°	78.7°	78.3°	77.8°	77.4°	77.4°	76.8°	76.4°	76.4°	76.8°	76.4°	76.4°
Chainstay lengthmm	442	443	445	442	443	443	442	443	443	442	443	443
Wheelbasemm	1212	1213	1214	1250	1251	1251	1274	1275	1275	1307	1308	1308
Front centermm	771	772	771	808	809	809	832	833	833	865	866	866
Bottom bracket dropmm	25	30	35	15	20	20	15	20	20	15	21	21
Standover heightmm	732	727	723	739	734	734	755	750	750	749	744	744
Fork rakemm	44	44	44	44	44	44	44	44	44	44	44	44
Trailmm	135	138	140	145	147	147	145	147	147	144	147	147
Stack/reach ratio	1.43	1.45	1.47	1.41	1.43	1.43	1.37	1.39	1.39	1.30	1.31	1.31
Suspension and parts
Crank lengthmm	165	165	165	165	165	165	165	165	165	165	165	165
Handlebar widthmm	800	800	800	800	800	800	800	800	800	800	800	800
Stem lengthmm	40	40	40	40	40	40	40	40	40	40	40	40

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Full suspension
Front travel: 180 mm
Rear travel: 165 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 52
Lowest gear: 16.9 in
Highest gear: 88.0 in

Wheels and brakes

Wheel configuration: Different sizes
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire clearance: Maximum tire width: 2.5″
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 29″, 27.5″

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

180 mm

This value is above the central range for this class.

Cohort: Mountain / Enduro Model year: 2027
Sample: 230 bicycles with this information
Coverage: 97.8% of the class

Rear travel

165 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2027
Sample: 188 bicycles with this information
Coverage: 80.0% of the class

Shifting

Mechanical

86 of 235 bicycles with this information use electronic shifting.

Cohort: Mountain / Enduro Model year: 2027
Sample: 235 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.5 km/h
Highest gear: 33.7 km/h

Total gear range 520%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 16.9–88.0 gear inches

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2027 builds
Specification	This bicycle Giant Reign SE	Giant Reign	Giant Reign Advanced
Frame
Frame material	Aluminum	Aluminum	Carbon
Suspension
Front travel	180 mm	170 mm	170 mm
Rear travel	165 mm	160 mm	160 mm
Drivetrain
Largest sprocket	52	51	52
Lowest gear	16.9 in	17.3 in	16.9 in
Cockpit
Shifting	Mechanical	Mechanical	Electronic
Derailleur hanger	Not informed	Not informed	UDH
Other specifications
Bottom bracket standard	Not informed	BB86/BB92	Not informed