Velopedia Bicycle Archive
2020 Giant Reign E+ 0 Pro
Original specifications: geometry for 4 published sizes.
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At a glance
- Model year
- 2020
- Category
- Mountain
- Original MSRP
- $8,500.00
- Sizes
- S, M, L, XL
- Colors
- Chameleon Green / Gold
- Geometry
- 4 manufacturer sizes
- In this record
- 20 specifications · archived image · original MSRP · geometry
- Archive ID
- 900002610
Original buildAluminum
Frameset
| Frame Construction | ALUXX SL-grade aluminum, 160mm Maestro suspension system, 'Boost' 148x12QR, Giant EnergyPak Plus range extender compatible |
|---|---|
| Frame Material | Aluminum |
| Fork | Fox 36 Float Factory 27.5, 170mm, Grip2 Damper, Boost 110x15QR, e-Bike optimized |
| Rear Shock | Fox Float X2 Factory, EVOL Large Volume sleeve, 2-position lever, 205x62.5mm Trunnion mount, custom tuned |
Drivetrain
| Shifters | SRAM XO1 Eagle eTap AXS |
|---|---|
| Front Derailleur | MRP 1X custom "V3" co-moulded TR chain guide |
| Rear Derailleur | SRAM XO1 Eagle AXS |
| Crankset | SRAM X-Sync Eagle 36T 104BCD chainringPraxis e-Carbon custom carbon crankarm set (Q-factor=168, S/M:160, L/XL::165) |
| Cassette | SRAM PG-1230, 11-50T, 12-Speed |
| Chain | SRAM XO1 Eagle PowerLock, 12-Speed |
Brakes
| Brakes | SRAM Code R, hydraulic disc, 220mm [F] 200mm [R] |
|---|
Cockpit & Contact Points
| Handlebar | Giant Contact SL 35 Trail, 35x800mm |
|---|---|
| Stem | Giant Contact SL 35 |
| Saddle | Giant Contact SL, Neutral |
| Seatpost | SRAM Reverb AXS, Wireless Remote, dropper, 30.9mm (Travel: 100mm-S / 125mm-M / 150mm-L / 170mm- XL) |
Wheels & Tires
| Hubs | Giant e-TRX [F] 110x15 [R] 148x12mm Thru-axle |
|---|---|
| Rims | Giant e-TRX 27.5, Tubeless ready, 30mm inner width |
| Spokes | Giant e-TRX |
| Front Tire | Maxxis Minion DHF 27.5x2.6" foldable, Tubeless, EXO+, 3c MaxxTerra[F]Maxxis High Roller II 27.5x2.6" foldable, Tubeless, DoubleDown, 2x120tpi, 3C MaxxTerra Compound [R] |
| Rear Tire | Maxxis Minion DHF 27.5x2.6" foldable, Tubeless, EXO+, 3c MaxxTerra[F]Maxxis High Roller II 27.5x2.6" foldable, Tubeless, DoubleDown, 2x120tpi, 3C MaxxTerra Compound [R] |
Geometry
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
All geometry measurements4 sizes · 16 measurements
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Seat tube | 406 mm | 445 mm | 482 mm | 507 mm |
| Top tube | 595 mm | 620 mm | 645 mm | 670 mm |
| Head tube | 100 mm | 110 mm | 120 mm | 130 mm |
| Head-tube angle | 64.5° | 64.5° | 64.5° | 64.5° |
| Seat-tube angle | 76° | 76° | 76° | 76° |
| Chainstay / rear center | 470 mm | 470 mm | 470 mm | 470 mm |
| Wheelbase | 1223 mm | 1249 mm | 1276 mm | 1303 mm |
| Bottom-bracket drop | 15 mm | 15 mm | 15 mm | 15 mm |
| Reach | 430 mm | 452 mm | 475 mm | 497 mm |
| Stack | 592 mm | 602 mm | 611 mm | 620 mm |
| Fork offset / rake | 44 mm | 44 mm | 44 mm | 44 mm |
| Trail | 124.3 mm | 124.3 mm | 124.3 mm | 124.3 mm |
| Crank length | 160 mm | 160 mm | 165 mm | 165 mm |
| Stem length | 40 mm | 40 mm | 50 mm | 50 mm |
| Handlebar width | 800 mm | 800 mm | 800 mm | 800 mm |
| Wheel size | 27.5 | 27.5 | 27.5 | 27.5 |
Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Parts & serviceability
Find replacement parts

SRAM 12-Speed Eagle Chain Powerlock - 4 Pack One Color, One Size
One Size

Maxxis Minion DHF Wide Trail 3C/EXO/TR 27.5in Tire Maxx Terra, 3C/EXO/TR, 27.5x2.6
27.5x2.6
Replacement option · verify fit
More parts (2)
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
Bike-specific inspection checklist 27 checks based on 7 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2020 Giant Reign E+ 0 Pro · Electric-assist · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: ALUXX SL-grade aluminum, 160mm Maestro suspension system, 'Boost' 148x12QR, Giant EnergyPak Plus range extender compatible · Fork: Fox 36 Float Factory 27.5, 170mm, Grip2 Damper, Boost 110x15QR, e-Bike optimized
Suspension
Evaluate the suspension →Archived: Fork: Fox 36 Float Factory 27.5, 170mm, Grip2 Damper, Boost 110x15QR, e-Bike optimized · Rear shock: Fox Float X2 Factory, EVOL Large Volume sleeve, 2-position lever, 205x62.5mm Trunnion mount, custom tuned
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM XO1 Eagle eTap AXS · Front derailleur: MRP 1X custom "V3" co-moulded TR chain guide · Rear derailleur: SRAM XO1 Eagle AXS · Crankset: SRAM X-Sync Eagle 36T 104BCD chainringPraxis e-Carbon custom carbon crankarm set (Q-factor=168, S/M:160, L/XL::165) · Cassette: SRAM PG-1230, 11-50T, 12-Speed · Chain: SRAM XO1 Eagle PowerLock, 12-Speed
Brakes
Inspect the brakes →Archived: Brakes: SRAM Code R, hydraulic disc, 220mm [F] 200mm [R]
Wheels and tires
Check wheels and tires →Archived: Rims: Giant e-TRX 27.5, Tubeless ready, 30mm inner width · Hubs: Giant e-TRX [F] 110x15 [R] 148x12mm Thru-axle · Front tire: Maxxis Minion DHF 27.5x2.6" foldable, Tubeless, EXO+, 3c MaxxTerra[F]Maxxis High Roller II 27.5x2.6" foldable, Tubeless, DoubleDown, 2x120tpi, 3C MaxxTerra Compound [R] · Rear tire: Maxxis Minion DHF 27.5x2.6" foldable, Tubeless, EXO+, 3c MaxxTerra[F]Maxxis High Roller II 27.5x2.6" foldable, Tubeless, DoubleDown, 2x120tpi, 3C MaxxTerra Compound [R]
Controls and contact points
Archived: Handlebar: Giant Contact SL 35 Trail, 35x800mm · Stem: Giant Contact SL 35 · Seatpost: SRAM Reverb AXS, Wireless Remote, dropper, 30.9mm (Travel: 100mm-S / 125mm-M / 150mm-L / 170mm- XL) · Saddle: Giant Contact SL, Neutral · Pedals: -
E-bike system
Check the battery and electronics →Archived: Giant Reign E+ 0 Pro · electric-assist identification
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help preserve its real-world history by sharing your owner experience.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



