Velopedia Bicycle Archive
2020 Giant Reign SX 29
Original specifications: geometry for 4 published sizes.
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At a glance
- Model year
- 2020
- Category
- Mountain
- Original MSRP
- $4,000.00
- Sizes
- S, M, L, XL
- Colors
- Biking Red
- Geometry
- 4 manufacturer sizes
- In this record
- 20 specifications · archived image · original MSRP · geometry
- Archive ID
- 900002408
Original buildAluminum
Frameset
| Frame Construction | ALUXX SL-Grade Aluminum, 146mm |
|---|---|
| Frame Material | Aluminum |
| Fork | Fox 36 Performance Elite, GRIP2, 170mm,110x15 Kabolt, tapered |
| Rear Shock | Fox DHX2 Performance Elite |
Drivetrain
| Shifters | SRAM NX Eagle |
|---|---|
| Rear Derailleur | SRAM NX Eagle |
| Crankset | TruVativ Descendent 6k Eagle DUB, 32t with MRP alloy guide |
| Bottom Bracket | SRAM DUB, press fit |
| Cassette | SRAM NX Eagle, 11x50 |
| Chain | SRAM NX Eagle |
Brakes
| Brakes | SRAM Code R |
|---|
Cockpit & Contact Points
| Handlebar | Giant Contact SL TR35, 800x35mm, 20mm rise |
|---|---|
| Stem | Giant Contact SL 35 |
| Saddle | Giant Contact (neutral) |
| Seatpost | Giant Contact Switch dropper post with remote, 30.9 |
Wheels & Tires
| Hubs | [F] Giant Tracker Performance Boost 15x110, sealed bearing [R] Giant Tracker Performance Boost 12x148, sealed bearing |
|---|---|
| Rims | Giant AM 29, tubeless ready sleeve-joint rim, 30mm inner width |
| Spokes | Sapim |
| Front Tire | [F] Maxxis Minion DHF 29x2.5 WT, EXO, TR [R] Maxxis Minion DHR II 29x2.4 WT, EXO, TR, tubeless |
| Rear Tire | [F] Maxxis Minion DHF 29x2.5 WT, EXO, TR [R] Maxxis Minion DHR II 29x2.4 WT, EXO, TR, tubeless |
Geometry
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
All geometry measurements4 sizes · 17 measurements
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Seat tube | 431 mm | 431 mm | 464 mm | 496 mm |
| Top tube | 574 mm | 601 mm | 640 mm | 666 mm |
| Head tube | 100 mm | 110 mm | 110 mm | 120 mm |
| Head-tube angle | 64.5° | 64.5° | 64.5° | 64.5° |
| Seat-tube angle | 76.3° | 76.3° | 76.3° | 76.3° |
| Chainstay / rear center | 439 mm | 439 mm | 439 mm | 439 mm |
| Wheelbase | 1191 mm | 1220 mm | 1262 mm | 1289 mm |
| Bottom-bracket drop | 27 mm | 27 mm | 27 mm | 27 mm |
| Reach | 423 mm | 451 mm | 488 mm | 511 mm |
| Stack | 622 mm | 622 mm | 631 mm | 640 mm |
| Standover height | 757 mm | 759 mm | 781 mm | 804 mm |
| Fork offset / rake | 44 mm | 44 mm | 44 mm | 44 mm |
| Trail | 133 mm | 133 mm | 133 mm | 133 mm |
| Crank length | 165 mm | 170 mm | 170 mm | 170 mm |
| Stem length | 40 mm | 40 mm | 40 mm | 50 mm |
| Handlebar width | 800 mm | 800 mm | 800 mm | 800 mm |
| Wheel size | 29" | 29" | 29" | 29" |
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

Maxxis Minion DHF 29in Tire Black, Dual Compound/EXO, 29x2.5
Dual Compound/EXO, 29x2.5
Replacement option · verify fit

Maxxis Minion DHR II Wide Trail 3C/EXO/TR 29in Tire Maxx Grip/3C/EXO, 29x2.4
29x2.4
Replacement option · verify fit

Goodyear Wrangler MTF 29in Tubeless Tire Black, 29x2.4
29x2.4
Replacement option · verify fit
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 23 checks based on 6 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 SX 29 · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: ALUXX SL-Grade Aluminum, 146mm · Fork: Fox 36 Performance Elite, GRIP2, 170mm,110x15 Kabolt, tapered
Suspension
Evaluate the suspension →Archived: Fork: Fox 36 Performance Elite, GRIP2, 170mm,110x15 Kabolt, tapered · Rear shock: Fox DHX2 Performance Elite
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM NX Eagle · Rear derailleur: SRAM NX Eagle · Crankset: TruVativ Descendent 6k Eagle DUB, 32t with MRP alloy guide · Bottom bracket: SRAM DUB, press fit · Cassette: SRAM NX Eagle, 11x50 · Chain: SRAM NX Eagle
Brakes
Inspect the brakes →Archived: Brakes: SRAM Code R
Wheels and tires
Check wheels and tires →Archived: Rims: Giant AM 29, tubeless ready sleeve-joint rim, 30mm inner width · Hubs: [F] Giant Tracker Performance Boost 15x110, sealed bearing [R] Giant Tracker Performance Boost 12x148, sealed bearing · Front tire: [F] Maxxis Minion DHF 29x2.5 WT, EXO, TR [R] Maxxis Minion DHR II 29x2.4 WT, EXO, TR, tubeless · Rear tire: [F] Maxxis Minion DHF 29x2.5 WT, EXO, TR [R] Maxxis Minion DHR II 29x2.4 WT, EXO, TR, tubeless
Controls and contact points
Archived: Handlebar: Giant Contact SL TR35, 800x35mm, 20mm rise · Stem: Giant Contact SL 35 · Seatpost: Giant Contact Switch dropper post with remote, 30.9 · Saddle: Giant Contact (neutral)
Before and during the test ride
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



