Giant Reign 2 2025 Bike

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.

Features

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 62.47, 63.09 or 63.46-degree head angle and corresponding 77.54, 77.89 or 78.26-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.

Technologies

• Advanced Forged Composite Technology: A state-of-the-art high-pressure moulding process is used to produce complex-shaped carbon fibre components that are lighter, stiffer and stronger than similar components made from aluminium. This technology is used in critical performance parts such as Maestro Suspension rocker links.
• Aluxx SL Aluminium Technology: This High-Performance level, state-of-the-art aluminium material is made predominantly from 6011 alloy and delivers best-in-class strength-to-weight ratios. These framesets also feature unique welding technologies for high-performance ride quality.
• Flip Chip Maestro 3: This all-new technology allows riders to quickly adjust the geometry and choose a rear wheel size (29-inch or 27.5-inch) for their riding style and terrain. It's available on select Maestro-equipped mountain bikes. The adjustment affects head tube and seat tube angles, bottom bracket height, and rear-wheel size using eccentric flip chip hardware located on the upper rocker arm of the rear suspension.
• Maestro Suspension Technology: Four strategically positioned pivot points and two linkages all work together to create a single floating pivot for the most active, efficient and independent suspension system on the trail.
• Over Drive: Giant's original oversized fork steerer tube technology. Designed to provide precise front-end steering performance, the system's oversized headset bearings (1 1/4" lower and 1 1/8" upper for road, 1 1/2" lower and 1 1/8" upper for mountain) and tapered steerer tube work in conjunction to provide optimal steering stiffness.
• Tubeless System: Fewer flat tires. Greater traction. Less rolling resistance and a smoother, faster ride. Giant's Tubeless System makes it easier than ever to experience all these benefits.

Specification

Frame and Forks

• Frame: ALUXX SL-Grade Aluminium Front And Rear Triangles, 160mm Maestro Suspension, Flip Chip, 12 x 148mm Thru-Axle, 27.5 or 29-Inch Rear Wheel Compatible, Flip Chip - Maestro 3, Integrated Down Tube Storage
• Forks: Fox 38 Rhythm, 170mm, GRIP Damper, 15 x 110 Kabolt X, 44mm Offset
• Rear Shock: Fox Float Performance, 205 x 62.5mm, Custom Tuned For Giant

Drivetrain

• Crankset: Praxis Cadet HD M24, 32 Tooth, 55mm Chainline Small: 165mm, Medium: 170mm, Large: 170mm, X-Large: 170mm
• Bottom Bracket: Praxis, Press Fit
• Rear Derailleur: Shimano SLX RD-M7100
• Cassette: Shimano Deore M6100, 10 x 51 Tooth
• Chain: KMC X-12

Braking/Shifting

• Shifters: Shimano Deore SL-M6100, 1 x 12
• Front Brake: Shimano Deore BR-MT520, Hydraulic, Shimano RT-66 Rotors 220mm
• Rear Brake: Shimano Deore BR-MT520, Hydraulic, Shimano RT-66 Rotors 200mm
• Brake Levers: Shimano Deore BL-MT501

Wheels

• Rims: Giant TRA 2 Wheelset, 6061 Alloy, Hookless, 30mm Inner Width, 40mm Outer Width, 21mm Height, Wide Guard Technology
• Front Hub: Giant MTB Alloy, Six-Bolt
• Rear Hub: Giant MTB Alloy, 72 POE (Points Of Engagement), Six-Bolt, MicroSpline Driver Body
• Spokes: Sapim, 28, J-Bend
• Front Tyre: Maxxis Assegai 29 x 2.5" WT, 3C MaxxTerra, EXO+, TR
• Rear Tyre: Maxxis Minion DHR II 27.5 x 2.4" WT, 3C MaxxTerra, DD, TR Tubeless

Finishing Kit

• Handlebars: Giant Contact TR35, 800 x 35mm, 35mm Rise
• Grips: Giant Tactal Pro Single
• Stem: Giant Contact SL 35 Small: 40mm, Medium: 40mm, Large: 40mm, X-Large: 40mm
• Seatpost: Contact Switch AT Dropper, Remote Small: 110-140mm Travel / 30.9 x 395mm
• Saddle: Giant Romero
• Pedals: Not Included