2025

Giant Reign 1

Name: Giant Reign 1
Brand: Giant
SKU: 9125004104
Price: 5599.0 AUD
Availability: InStock

Push new limits on challenging terrain. This enduro ripper has 160mm of rear suspension that eats up rocks, drops and whatever comes your way. A three-position flip chip lets you adjust geometry and switch out the rear wheel from 27.5-inch to 29.

Highlights

Race-bred suspension
A Maestro rear suspension system with 160mm of travel was developed and tested under the extreme conditions of Enduro World Series races. The trunnion mount shock has a longer stroke (62.5mm compared to 60mm on the previous generation). And the Advanced Forged Composite upper rocker arm adds stiffness and lowers overall weight.

Adjustable enduro geometry
Flip chip technology lets you switch between three settings depending on the terrain. You can select a 62.5, 63 or 63.5-degree head angle and corresponding 77.5, 77.9 or 78.3-degree seat tube angle, resulting in a 29, 24 or 19mm bottom bracket drop (size medium) to fine-tune handling for trail conditions, riding style and rear-wheel size.

Rear wheel options
Riders can choose either the stock 27.5-inch rear wheel or switch to 29. The larger 29-inch option improves stability and roll-over capabilities, while the 27.5 option delivers a more agile, snappier feel. It’s a quick and easy way to adjust the bike’s handling and feel.

Sizing guide

Size	cm feet
S	163cm - 172cm 5’4” - 5’8”
M	171cm - 180cm 5’7” - 5’11”
L	179cm - 188cm 5’10” - 6’2”
XL	187cm - 198cm 6’2” - 6’6”

Geometry

	S	M	L	XL
Seat Tube Length	S400	M425	L450	XL475
Seat Tube Angle	S77.5° \| 77.8° \| 78.2°	M77.5° \| 77.8° \| 78.2°	L76.5° \| 76.9° \| 77.2°	XL76.5° \| 76.9° \| 77.2°
Top Tube Length	S558 \| 557 \| 556	M589 \| 588 \| 587	L622 \| 621 \| 621	XL654 \| 653 \| 653
Head Tube Length	S100	M105	L115	XL120
Head Tube Angle	S62.7° \| 63.0° \| 63.4°	M62.7° \| 63.0° \| 63.4°	L62.7° \| 63.1° \| 63.4°	XL62.7° \| 63.1° \| 63.4°
Fork Rake (mm)	S44	M44	L44	XL44
Trail	S147 \| 144 \| 141	M147 \| 144 \| 141	L147 \| 144 \| 141	XL147 \| 144 \| 141
Wheelbase	S1214 \| 1213 \| 1212	M1246 \| 1245 \| 1244	L1271 \| 1270 \| 1269	XL1304 \| 1303 \| 1302
Chain Stay Length	S445 \| 443 \| 442	M445 \| 443 \| 442	L445 \| 443 \| 442	XL445 \| 443 \| 442
Bottom Bracket Drop	S29 \| 24 \| 19	M29 \| 24 \| 19	L29 \| 24 \| 19	XL29 \| 24 \| 19
Stack	S633 \| 630 \| 627	M638 \| 635 \| 632	L647 \| 644 \| 641	XL652 \| 649 \| 646
Reach	S418 \| 421 \| 426	M448 \| 452 \| 456	L468 \| 471 \| 476	XL499 \| 503 \| 507
Stand Over Height	S714 \| 718 \| 723	M733 \| 738 \| 742	L746 \| 750 \| 755	XL762 \| 766 \| 771
Stem Length	S40	M40	L40	XL40
Crank Length	S165	M170	L170	XL170
Wheel Size	S29" [F] 27.5" [R]	M29" [F] 27.5" [R]	L29" [F] 27.5" [R]	XL29" [F] 27.5" [R]

Technical specifications

Size	S, M, L, XL
Colours	Mars Dust
Frame	ALUXX SL-Grade Aluminium front and rear triangles, 160mm Maestro suspension, flip chip 3 position, 12x148mm thru-axle, 27.5 or 29-inch rear wheel compatible, integrated downtube storage, 55mm Chainline
Fork	Fox 38 Performance Elite, 170mm, GRIP X2 damper, 15x110 Kabolt X, 44mm offset, custom tuned for Giant
Shock	Fox Float X Performance Elite, 2 position, custom tuned for Giant
Handlebar	Giant Contact TR35, alloy, 35mm
Grips	Giant Tactal Pro Single lock-on
Stem	Giant Contact SL 35 S:40mm, M:40mm, L:40mm, XL:40mm
Seatpost	Giant Contact Switch AT dropper, adjustable travel, 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
Saddle	Giant Romero
Pedals	N/A
Shifters	Shimano SLX SL-M7100, 1x12
Front Derailleur	N/A
Rear Derailleur	Shimano SLX RD-M7100 Shadow +
Brakes	Shimano Deore BR-M6120, hydraulic, Shimano RT-66 rotors [F]220mm, [R]203mm
Brake Levers	Shimano Deore BL-M6100
Cassette	Shimano SLX M7100, 10x51
Chain	KMC X-12
Crankset	Shimano MT512, 32t, 55mm chainline S:165mm, M:170mm, L:170mm, XL:170mm
Bottom Bracket	Shimano, press fit
Rims	Giant TRA Hookless Tubeless ready Alloy Fr: 29", Rr: 27.5" 30mm inner width
Hubs	Giant TRA MTB Alloy Hub, 6 Bolt, 110x15 [F] / 148x12 SRAM XD Drive Body Pawl Driver (Pawl 36x2 T) Thru-axle [R]
Spokes	Sapim Laser
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 tyre 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.