For 2026, Giant introduces the Reign Advanced E+ as a clean-sheet, flagship enduro e-MTB designed for high-speed descending and aggressive bike-park use. Moving to a full carbon chassis, the platform bumps travel to 170mm in the rear and 180mm up front, utilizing a modified Maestro suspension layout that integrates the lower link cleanly around the motor. It rolls exclusively on a mixed-wheel setup.
The defining shift for this generation is the adoption of a 48-volt electrical architecture paired with the new SyncDrive Pro 3 motor, delivering 90Nm of torque and up to 800 watts of peak power. Rather than maximizing internal battery size, Giant opted for a 560Wh main battery to prioritize handling and frame stiffness, offering a 280Wh range extender for riders who need more capacity. Heavy-duty frame protection, including a titanium skid plate, underscores the bike's intent as a durable, gravity-focused machine.
| Stack | 669mm |
| Reach | 476mm |
| Top tube | 625mm |
| Headtube length | 120mm |
| Seat tube length | 450mm |
The Reign Advanced E+ geometry is defined by a notably high front end, with the size large reaching a 667mm stack height. This tall setup places the rider in an upright, commanding posture that reduces fatigue on steep, sustained descents. Paired with a slack 63.5-degree head tube angle and consistent 450mm chainstays across all four frame sizes, the chassis centers the rider between the mixed wheels to maximize stability at speed.
Giant builds a significant amount of adjustability into the frame to help riders fine-tune this aggressive baseline. A three-position flip chip in the upper rocker link alters the head and seat tube angles by 0.4 degrees while raising or lowering the bottom bracket. Additionally, a modular headset cup system allows for 5mm of reach adjustment in either direction. This lets riders shorten the front center for quicker steering on tight trails or lengthen it for maximum composure in the bike park. While the geometry excels downhill, the high stack and slack angles mean riders must actively weight the front wheel to maintain steering precision on steep, technical climbs.
Frameset
Frame
Advanced-grade composite frame, Advanced forged composite upper rocker, 170mm Maestro suspension system
Fork
RockShox ZEB Select, 29", 180mm travel, Charger RC damper, 44mm offset, Maxle Stealth, 110x15mm Boost
Rear shock
Fox Float X Performance, EVOL Large Volume sleeve, 205x65mm Trunnion mount, custom tuned
Groupset
Shift levers
Shimano Deore
Rear derailleur
Shimano Deore Shadow+, 12-speed
Cassette
Shimano Deore, 12-speed, 10-51T
Chain
Shimano Deore 12-speed
Crankset
Praxis 36T Cold Forged 4130 premium steel ring; Praxis e-HD forged crankarm set (Q-Factor 168mm, 160mm length); MRP AMg SL HD2XL chain guide with bashguard
Bottom bracket
Praxis e-bike system (bottom bracket not specified)
Front brake
Shimano SLX hydraulic disc, 4-piston
Rear brake
Shimano SLX hydraulic disc, 4-piston
Front rotor
220mm
Rear rotor
220mm
Wheelset
Front wheel
Giant AM30, tubeless ready, 30mm inner width, 29"; Giant E-Drive, Boost 15x110mm, 72T engagement, e-bike optimized; Sapim Race (front) / Sapim E-Lite (rear), e-bike optimized
Rear wheel
Giant AM30, tubeless ready, 30mm inner width, 27.5"; Giant E-Drive 260Nm, Boost 12x148mm, 72T engagement, e-bike optimized; Sapim Race (front) / Sapim E-Lite (rear), e-bike optimized
Front tire
Maxxis Assegai 29x2.5, foldable, tubeless, EXO+, 3C MaxxGrip
Rear tire
Maxxis Minion DHR II 27.5x2.4 WT, foldable, tubeless, DoubleDown, 3C MaxxGrip
Cockpit
Stem
Giant Contact SL 35
Handlebars
Giant Contact SL TR35, 35x800mm, 35mm rise, 5° up, 9° back
Saddle
Giant Romero, Neutral
Seatpost
Giant Contact Switch adjustable dropper, 30.9mm (S: 110–140mm; M: 140–170mm; L/XL: 170–200mm) with MMX remote
Grips
Giant Tactal Pro-E, tapered design (S/M: 135mm Ø28–30mm; L/XL: 142mm Ø29–32mm)
The Reign Advanced E+ lineup spans three models, all sharing the same Advanced-grade carbon frame, 560Wh battery, and 48V SyncDrive Pro 3 motor. Every build also includes Giant’s Aegis tire pressure monitoring sensors and the integrated top-tube display.
The entry-level 2 build starts at $7,500, pairing a RockShox ZEB Select fork with a Fox Float X Performance shock. It relies on a Shimano Deore 12-speed drivetrain and SLX four-piston brakes, rolling on Giant AM30 aluminum wheels. Stepping up to the 1 build at $8,800 upgrades the suspension to a Fox 38 Performance Elite fork with the GRIP X2 damper. This mid-tier model shifts to a SRAM GX Eagle Transmission, TRP DH-R EVO brakes, and e-bike optimized Giant e-TRA aluminum wheels, representing the sweet spot for aggressive riders seeking high-end damping and electronic shifting.
The flagship 0 build jumps to $13,500. It features Fox Factory suspension, a SRAM XX/X0 Eagle Transmission, and SRAM Maven Ultimate brakes. It also upgrades to Giant TRX carbon wheels, a one-piece carbon handlebar, and crucially, includes the 280Wh range extender in the box—an accessory that must be purchased separately on the lower builds. All models are equipped with heavy-duty Maxxis MaxxGrip tires and massive brake rotors to manage the bike's weight.
Reviewers characterize the Reign Advanced E+ as a highly capable, gravity-oriented machine that prioritizes high-speed stability over low-speed agility. On rough descents, the 180/170mm travel platform acts as a "steamroller" that "flattens everything out" (Ebike-mtb) through rock gardens and root sections. While testers agree the bike excels at muting trail chatter, they note a tradeoff on smoother flow trails, where the deep suspension can absorb rider inputs and make it harder to pump for momentum.
The new 48V SyncDrive Pro 3 motor receives praise for its smooth, responsive power delivery, particularly at higher cadences. Testers found it packs "plenty of punch" (Flow Mountain Bike) on steep inclines, though some noted a "slight rattle" (Flow Mountain Bike) from the motor while descending. Climbing efficiency is a standout trait, with the Maestro linkage remaining remarkably pedal-neutral.
Reviewers also highlight the bike's robust construction and thoughtful integration. The elastomer-damped active bashguard is viewed as a "winning proposition" (Cyclonline) for long-term motor protection. Ultimately, the consensus points to a bike optimized for aggressive enduro riders who value downhill composure and structural durability over marathon range or playful trail manners.
