6.5–27.1 mph at 90 rpm, estimated from the published rear tire size 700×42c · 42-622 ETRTO.
Velopedia Bicycle Archive
2025 Giant Roam 2
Original specifications: geometry for 4 published sizes.
Selling this bike? Create a shareable bike record
At a glance
- Model year
- 2025
- Category
- Hybrid
- Original MSRP
- $850.00
- Sizes
- S, M, L, XL
- Colors
- Asphalt Green
- Geometry
- 4 manufacturer sizes
- In this record
- 20 specifications · 7 archived images · original MSRP · geometry
- Archive ID
- 900001281
Model history 4 other years
Original buildAluminum
Frameset
| Frame Construction | ALUXX-grade aluminum, disc |
|---|---|
| Frame Material | Aluminum |
| Fork | SR Suntour NEX HLO 700C, 63mm |
Drivetrain
| Shifters | microSHIFT Advent, 1x9 |
|---|---|
| Rear Derailleur | micoSHIFT Advent, 1x9 |
| Crankset | Forged alloy, 40t S:170mm, M:170mm, L:175mm, XL:175mm |
| Bottom Bracket | sealed cartridge |
| Cassette | micorSHIFT Advent, 11x46 |
| Chain | KMC X9 |
| Pedals | platform |
Brakes
| Brakes | Tektro TKD-143 hydraulic, [F]160mm, [R]160mm rotors |
|---|
Cockpit & Contact Points
| Handlebar | Giant Sport XC, 31.8mm S:64cm, M:68cm, L:68cm, XL:68cm |
|---|---|
| Stem | Giant Sport, 8-degree S:60mm, M:70mm, L:80mm, XL:90mm |
| Saddle | ErgoContact |
| Seatpost | Giant D-Fuse, alloy, 350mm |
Wheels & Tires
| Hubs | alloy, 28h |
|---|---|
| Rims | Giant double wall aluminum |
| Spokes | stainless, 14g |
| Front Tire | Giant CrossCut, anti-puncture, 700x42c |
| Rear Tire | Giant CrossCut, anti-puncture, 700x42c |
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 | 420 mm | 460 mm | 500 mm | 550 mm |
| Top tube | 590 mm | 600 mm | 610 mm | 625 mm |
| Head tube | 115 mm | 130 mm | 145 mm | 160 mm |
| Head-tube angle | 70.5° | 70.5° | 70.5° | 70.5° |
| Seat-tube angle | 73° | 73° | 73° | 73° |
| Chainstay / rear center | 450 mm | 450 mm | 450 mm | 450 mm |
| Wheelbase | 1088 mm | 1098 mm | 1109 mm | 1125 mm |
| Bottom-bracket drop | 62 mm | 62 mm | 62 mm | 62 mm |
| Reach | 404 mm | 410 mm | 416 mm | 427 mm |
| Stack | 606 mm | 620 mm | 634 mm | 648 mm |
| Standover height | 725 mm | 756 mm | 788 mm | 827 mm |
| Fork offset / rake | 42 mm | 42 mm | 42 mm | 42 mm |
| Trail | 85 mm | 85 mm | 85 mm | 85 mm |
| Crank length | 170 mm | 170 mm | 175 mm | 175 mm |
| Stem length | 70 mm | 80 mm | 90 mm | 100 mm |
| Handlebar width | 640 mm | 680 mm | 680 mm | 680 mm |
| Wheel size | 700C | 700C | 700C | 700C |
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
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.
Bike-specific inspection checklist 20 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: 2025 Giant Roam 2 · Hybrid · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: ALUXX-grade aluminum, disc · Fork: SR Suntour NEX HLO 700C, 63mm
Suspension
Evaluate the suspension →Archived: Fork: SR Suntour NEX HLO 700C, 63mm
Drivetrain
Check drivetrain wear →Archived: Shifters: microSHIFT Advent, 1x9 · Rear derailleur: micoSHIFT Advent, 1x9 · Crankset: Forged alloy, 40t S:170mm, M:170mm, L:175mm, XL:175mm · Bottom bracket: sealed cartridge · Cassette: micorSHIFT Advent, 11x46 · Chain: KMC X9
Brakes
Inspect the brakes →Archived: Brakes: Tektro TKD-143 hydraulic, [F]160mm, [R]160mm rotors
Wheels and tires
Check wheels and tires →Archived: Rims: Giant double wall aluminum · Hubs: alloy, 28h · Front tire: Giant CrossCut, anti-puncture, 700x42c · Rear tire: Giant CrossCut, anti-puncture, 700x42c
Controls and contact points
Archived: Handlebar: Giant Sport XC, 31.8mm S:64cm, M:68cm, L:68cm, XL:68cm · Stem: Giant Sport, 8-degree S:60mm, M:70mm, L:80mm, XL:90mm · Seatpost: Giant D-Fuse, alloy, 350mm · Saddle: ErgoContact · Pedals: platform
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.
Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.
Already contributed? Send me a fresh private edit link
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
Gallery7 images
Checking current listings…
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.


