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2025 Giant Roam 2

Original specifications: geometry for 4 published sizes.

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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

Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

SMLXL

Published colors

Asphalt Green

Frameset

Frame ConstructionALUXX-grade aluminum, disc
Frame MaterialAluminum
ForkSR Suntour NEX HLO 700C, 63mm

Drivetrain

ShiftersmicroSHIFT Advent, 1x9
Rear DerailleurmicoSHIFT Advent, 1x9
CranksetForged alloy, 40t S:170mm, M:170mm, L:175mm, XL:175mm
Bottom Bracketsealed cartridge
CassettemicorSHIFT Advent, 11x46
ChainKMC X9
Pedalsplatform

Brakes

BrakesTektro TKD-143 hydraulic, [F]160mm, [R]160mm rotors

Cockpit & Contact Points

HandlebarGiant Sport XC, 31.8mm S:64cm, M:68cm, L:68cm, XL:68cm
StemGiant Sport, 8-degree S:60mm, M:70mm, L:80mm, XL:90mm
SaddleErgoContact
SeatpostGiant D-Fuse, alloy, 350mm

Wheels & Tires

Hubsalloy, 28h
RimsGiant double wall aluminum
Spokesstainless, 14g
Front TireGiant CrossCut, anti-puncture, 700x42c
Rear TireGiant CrossCut, anti-puncture, 700x42c

Geometry

4 sizes · 17 measurements

Frame measurements by size.

All geometry measurements4 sizes · 17 measurements
MeasurementSMLXL
Seat tube420 mm460 mm500 mm550 mm
Top tube590 mm600 mm610 mm625 mm
Head tube115 mm130 mm145 mm160 mm
Head-tube angle70.5°70.5°70.5°70.5°
Seat-tube angle73°73°73°73°
Chainstay / rear center450 mm450 mm450 mm450 mm
Wheelbase1088 mm1098 mm1109 mm1125 mm
Bottom-bracket drop62 mm62 mm62 mm62 mm
Reach404 mm410 mm416 mm427 mm
Stack606 mm620 mm634 mm648 mm
Standover height725 mm756 mm788 mm827 mm
Fork offset / rake42 mm42 mm42 mm42 mm
Trail85 mm85 mm85 mm85 mm
Crank length170 mm170 mm175 mm175 mm
Stem length70 mm80 mm90 mm100 mm
Handlebar width640 mm680 mm680 mm680 mm
Wheel size700C700C700C700C

Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

All published sizes40T · 11–46T
Lowest0.87:1 Highest3.64:1 Total range418%

6.5–27.1 mph at 90 rpm, estimated from the published rear tire size 700×42c · 42-622 ETRTO.

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Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
KMC X9
Shifters · Original
microSHIFT Advent, 1x9 Search: microSHIFT Advent, 1x9 shifter

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.

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Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
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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.

Archived: 2025 Giant Roam 2 · Hybrid · Published sizes: S, M, L, XL

Archived: Frame: ALUXX-grade aluminum, disc · Fork: SR Suntour NEX HLO 700C, 63mm

Archived: Fork: SR Suntour NEX HLO 700C, 63mm

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

Archived: Brakes: Tektro TKD-143 hydraulic, [F]160mm, [R]160mm rotors

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

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Gallery7 images

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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