Descending
93
Slack 63.7° head angle, 160mm travel and a long 1265mm wheelbase — composed in the chunk, confident when it gets steep, and stable through fast corners.
Giant
Reign E+ 2023
Discontinued✎Full Power · EnduroLegacy · 0.4/10iFreshness 0.4/10
How current the bike is — newer chassis, motor and battery score higher. 10 = brand-new, 0 = legacy.
How current the bike is — newer chassis, motor and battery score higher. 10 = brand-new, 0 = legacy.
Motor
Giant SyncDrive Pro2 · 85Nm · 250W↗
Battery
Giant EnergyPak Smart 800 · 800Wh
Travel F/R
170/160mm
Wheels
MX or 29F / 29R✎
Frame
Aluminium✎
Weight
25.5 kg
Price
From £4,999
From £4,999
EMTB Forums verdict
The all-new 2023 Reign E+ is Giant's purebred full-power enduro eMTB, ditching the old freeride numbers for a longer, slacker, race-bred chassis. It pairs 160mm of Maestro rear travel and a 170mm fork with a mullet (29in front, 27.5in rear) wheel setup, and a flip-chip lets you tweak the head and seat angles by roughly 0.8 degrees plus 10mm of bottom-bracket height.
Power comes from Giant's own SyncDrive Pro2 motor (85Nm, Yamaha-derived) fed by a downtube-integrated EnergyPak Smart 800Wh battery, with a range extender option on M and up. Three aluminium trims spanned the range: the AXS-equipped E+ 1 with Fox 38 and Float X2, the SLX-built E+ 2 with a RockShox ZEB, and the value E+ 3 on a Domain and Shimano Deore.
Now discontinued (the line carried into 2024 with revised pricing), it remains a long-travel, planted descender that rewards aggressive riding. UK RRPs at launch were 6,999 for the E+ 1, 5,499 for the E+ 2 and 4,999 for the E+ 3.
Geometry read
What the numbers mean on the trail
Computed from this bike's geometry, spec and build kit — reach, wheelbase, chainstay, head and seat angles, travel, motor, weight and the fork/tyre/brake spec — and worked out per size, because a fixed chainstay can make an S and an XL feel very different.
Size
Setting
Playfulness
32
More planted than poppy — better on steep terrain than tight, fiddly singletrack.
Size balance
98
Rear-long with a planted front in L (FC:RC 1.79) — easy to weight the front and quick to turn, though it can feel light at the back at real speed.
Technical climbing
72
Giant SyncDrive Pro2 and a steep 76.7° seat angle keep the weight planted over the front — a proper winch. 250W of peak power and 85Nm of torque — a strong full-power motor.
Rewards commitment; it should feel calmer as the speed rises.
Brilliant on fast, rough, steep terrain; less fun on tight, mellow trails.
How it stacks up vs other Full Power · Enduro bikes (from 132 bikes in the database)
Weight25.5 kg1.7 kg heavier than average
Battery800 Wh64 Wh above average
Motor torque85 Nm18 Nm below average
Value for money55/100from £4,999 · comparable bikes ~£5,154
⚙️ Adjustable geometry: this frame has a high/low setting — low drops the BB and slackens the head angle for more descending stability; high lifts the BB and steepens slightly for clearance and a perkier, more playful feel.
Computed from geometry + spec, not a paid review. Scores are guidance, not gospel.
💬 Forum discussion
2026 Giant Reign E+ Megathread
325 replies · 62.4k views · last reply 4 days ago
Join the discussion →
“I saw some rumors & spec sheets circulating on FB about the 2026 Reign E+ so I figured out we could start a thread on here to share informations. Leaked spec sheet below, here's some highlights : New carbon frame available, model is…”
— Redlemon · ♥ 7 · most-liked post
OWNERS’ REPORT
Geometry · hover a row to highlight the measurement on the bike
Flip-chip positiongeometry changes with the chip
| S | M | L | XL | |
|---|---|---|---|---|
| Reach | 430 mm | 455 mm | 480 mm | 505 mm |
| Stack | 632 mm | 632 mm | 641 mm | 650 mm |
| Seattube | 400 mm | 425 mm | 450 mm | 475 mm |
| Chainstay | 455 mm | 454 mm | 454 mm | 454 mm |
| Headtube Angle | 64.5° | 64.5° | 64.5° | 64.5° |
| Seattube Angle (eff) | 77.5° | 77.5° | 77.5° | 77.5° |
| Wheelbase | 1210 mm | 1237 mm | 1266 mm | 1296 mm |
| Headtube | 100 mm | 100 mm | 110 mm | 120 mm |
| BB Height | 340 mm | 340 mm | 340 mm | 340 mm |
| Standover | 789 mm | 776 mm | 775 mm | 772 mm |
| Front Centre | 755 mm* | 783 mm* | 812 mm* | 842 mm* |
| FC:RC | 1.66 | 1.72 | 1.79 | 1.85 |
Trims · 3
3 £4,999 | 2 £5,499 | 1 £6,999 | |
|---|---|---|---|
| Motor | Giant SyncDrive Pro2 · 85 Nm · all trims | ||
| Battery | Giant EnergyPak Smart 800 · 800 Wh · all trims | ||
| Travel F/R | 170/160 mm · all trims | ||
| Frame | Aluminium · all trims | ||
| Fork | RockShox Domain R 29er, 170mm travel, 15x110 Boost, Maxle Stealth, E-bike Approved | RockShox ZEB Select 29er, 170mm travel, Charger RC damper, 15x110 Boost, Maxle Stealth, E-bike Approved | Fox 38 Float Performance Elite E-Bike+, 29er, 170mm, GRIP2 VVC Damper, Boost 110x15 Kabolt floating axle |
| Shock | Fox Float DPS Performance, EVOL Large Volume sleeve, 2-position lever, 205x62.5mm Trunnion mount, custom tuned | Fox Float X Performance, EVOL Large Volume sleeve, 2-position lever, 205x62.5mm Trunnion mount, custom tuned | Fox Float X2 Performance Elite, EVOL Large Volume sleeve, 2-position lever, 205x62.5mm Trunnion mount, custom tuned |
| Stem | Giant Contact SL 35 · all trims | ||
| Handlebar | Giant Contact Trail, 35x800mm | Giant Contact Trail, 35x800mm | Giant Contact SL Trail, 35x800mm |
| Grips | Giant Tactal Pro-E, single lock-on · all trims | ||
| Saddle | Giant Romero Trail · all trims | ||
| Seatpost | Giant Contact Switch, dropper, 30.9mm (S:125/M:150/L&XL:170) | Giant Contact Switch, dropper, 30.9mm (S:125/M:150/L&XL:170) | Tranz-X Rad+ dropper, 30.9mm, 30mm travel adjustable (S:120-150mm, M:140-170mm, L/XL:170-200mm) |
| Brakes | Shimano Deore BR-M420, 4-piston, hydraulic disc, 203mm | Shimano SLX BR-M7120, 4-piston, hydraulic disc, 203mm | SRAM Code R, hydraulic disc, 220mm[F] / 200mm[R] |
| Rear derailleur | Shimano Deore 12-speed | Shimano Deore SLX, 12-speed, Shadow+ | SRAM GX Eagle AXS |
| Crank | Praxis Wave 36T Cold Forged 4130 premium steel, Praxis e-Cadet+ custom forged crankarm set (S/M:160, L/XL:165) · all trims | ||
| Shifters | Shimano Deore 1x12 | Shimano Deore SLX | SRAM AXS Rocker Paddle, wireless electronic shifting 1x12 |
| Cassette | Shimano Deore CS-M6100-12, 10-51T, 12-speed | Shimano HG-M6100, 10-51T, 12-speed | SRAM XG-1275, 10-52T, 12-speed |
| Chain | KMC e.12 Turbo, EcoProteq, e-bike optimised | KMC e.12 Turbo, EcoProteq, e-bike optimised | SRAM GX Eagle PowerLock |
| Drivetrain | Shimano Deore 12-speed; Praxis Wave 36T Cold Forged 4130 premium steel, Praxis e-Cadet+ custom forged crankarm set (S/M:160, L/XL:165); Shimano Deore 1x12; Shimano Deore CS-M6100-12, 10-51T, 12-speed; KMC e.12 Turbo, EcoProteq, e-bike optimised | Shimano Deore SLX, 12-speed, Shadow+; Praxis Wave 36T Cold Forged 4130 premium steel, Praxis e-Cadet+ custom forged crankarm set (S/M:160, L/XL:165); Shimano Deore SLX; Shimano HG-M6100, 10-51T, 12-speed; KMC e.12 Turbo, EcoProteq, e-bike optimised | SRAM GX Eagle AXS; Praxis Wave 36T Cold Forged 4130 premium steel, Praxis e-Cadet+ custom forged crankarm set (S/M:160, L/XL:165); SRAM AXS Rocker Paddle, wireless electronic shifting 1x12; SRAM XG-1275, 10-52T, 12-speed; SRAM GX Eagle PowerLock |
| Wheels | Giant AM 29" [F] / 27.5" [R], Tubeless ready, 30mm inner width | Giant AM 29" [F] / 27.5" [R], Tubeless ready, 30mm inner width | TRX 2 Hookless Clincher, 29" [F] / 27.5" [R], 30mm inner width |
| Tyres | Maxxis Minion DHF 29x2.6" foldable, Tubeless, EXO+, 3C MaxxTerra [F]; Maxxis High Roller II 27.5x2.5" foldable, Tubeless, DoubleDown, 3C MaxxTerra [R] · all trims | ||
| Weight | 25.5 kg | — | — |
| Price | £4,999 | £5,499 | £6,999 |
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