Reign E+ 2025

The Giant Reign E+ 2025 is a full-power aluminium enduro eMTB built around Giant's own SyncDrive Pro3 motor and an 800 Wh EnergyPak Smart pack. Headline numbers: 170 mm of fork travel, 160 mm at the rear, 105 Nm of torque, an 800 W manufacturer-claimed peak, a 24.9 kg claimed weight and a genuinely slack 63.9 to 64 degree head angle with reach stepping from 430 mm on S to 520 mm on XL across two-position geometry. The community verdict is positive: long-term owners report mature reliability, smooth power and chassis quality that holds up over thousands of kilometres.

Drive system and range. SyncDrive Pro3 is built for Giant by Yamaha (note: @offroad documents that some 2024+ Giant SyncDrive variants are made by Shimano, identifiable by the side-mounted connector versus Yamaha's top-mounted connector). Torque is 105 Nm, with a 250 W nominal and a manufacturer-claimed 800 W peak. The EnergyPak Smart 800 is removable. Real-world consumption is well-documented: @jeanmarc records 103 Wh/h average draw on a prior-generation 2024 Reign E+2 with a 217 Wh/h peak, and reports rarely using turbo mode in normal trail riding. @sprousaTM documents 4300 ft of vert across 20 to 25 miles above eco mode on a 625 Wh Yamaha build. Scale up to the 800 Wh pack and you have a properly long-day enduro tool.

Geometry and handling. Two-position adjustable geometry: 63.9 degrees in Low and 64 degrees in High, with chainstays adjustable 443 or 455 mm independently. Reach stretches 430 mm on S in Low to 520 mm on XL in High, with wheelbases running 1213 to 1328 mm. The size-tuned chainstay is the standout: at last a brand stops fixing CS at one length across every size. @jasperofpuppets confirms the 2022 mullet shipped with a 29x2.6 front and 27.5x2.5 rear, and that mullet positioning carries through into the 2025 chassis intent.

Build and value. Giant publishes a single base trim at £7499 for the spec we have on file, 24.9 kg. SyncDrive Pro3, 800 Wh pack and the 170/160 mm aluminium Maestro chassis. Giant's in-house wheels, bars and stems keep cost discipline tight: @Redlemon documents the upgrade path many owners take (Fox Transfer Factory 210 mm dropper, Shimano RT-MT905 203 mm rotors, We Are One Convert MX rims, OneUp E-Bar, Maxxis DD 2.5 inch tyres front and rear) which gives a sense of where the stock build can be improved.

Community-verified strengths. Three things owners praise. First, motor and battery reliability: @Jurassic reports 4500 km on a 2022 Reign E+1 with the battery still at 94 per cent state of health and no motor or software issues despite Scottish wet conditions (Giant UK replaced a cracked frame under warranty in the same period). Second, the Maestro four-bar handling: @TonTonUB calls the 2022 onwards Reign E+ a major upshift over the prior generation. Third, the chassis is fundamentally agile for its weight, with @Kyzo reporting more confidence than his prior muscular Trance X.

Caveats and known gripes. Three honest flags. @Kanitfastan documents a power-interrupt issue traced after three seasons to a failed Giant Speed Sensor Integrated 4430-FSJISS-01: not a battery, magnet or software issue. Riders should be aware. The motor is not the quietest on descents, with press testing noting a slight rattle similar to Gen 4 Bosch. And the 2026 Reign Advanced E+ replacement, with carbon frame, 180/170 mm travel, SyncDrive Race motor and integrated 560 Wh battery plus 280 Wh extender, sits one model year away.

Verdict. The Reign E+ 2025 is for the rider who wants a proven, slack and modern aluminium enduro eMTB with an 800 Wh removable battery and Giant's in-house SyncDrive Pro3 motor. If you want a lighter, carbon-frame chassis or the latest 48 V SyncDrive Race motor, wait for the 2026 Reign Advanced E+. Production status is current.