The Giant Roam 2 is a commuter bike, built on a aluminium frame, listed at $1,199. An upright, practical bike for getting around town.
aluminiumdisc brakehybridcommuterflat bar
SizingWhat size Roam 2 do I need?
cm
Enter your height to see the size Giant recommends.
Giant Roam 2 size chart
Size
Rider height
In feet
S
160 to 170 cm
5 ft 3 in to 5 ft 7 in
M
170 to 180 cm
5 ft 7 in to 5 ft 11 in
L
180 to 190 cm
5 ft 11 in to 6 ft 3 in
XL
190 to 200 cm
6 ft 3 in to 6 ft 7 in
Rider heights from Giant's size chart. Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.
SpecificationsWhat we know
Brand
Giant
Model year
2025
Category
Commuter
Frame
Aluminium
Wheel size
700c
Drivetrain
Shimano Cues U6000 2x10
Brakes
Disc
Frame sizes
S, M, L, XL
Price
$1,199, RRP AUD (Giant Sydney)
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
GeometrySize M
Giant Roam 2, size M. Published geometry, drawn to scale (BB drop or fork offset not published, typical value used).
Stack
620 mm
Reach
410 mm
Stack/reach
1.51
Head angle
70.5 deg
Seat angle
73 deg
Wheelbase
1098 mm
Chainstay
450 mm
BB drop
62 mm
GearingRatios
0.77lowest (climbing)
4.18highest (speed)
Very low climbing gear
Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.
Drivetrain & buildFull specification
Groupset
Shimano CUES
Speeds
10
Crank
Forged Alloy crankset, 30/46T
Chainrings
30/46
Cassette
11-39
Brakes
Tektro TKD-143 hydraulic disc
Rotors
160/160mm
Wheelset
Giant double wall aluminium rims, alloy hubs
Stock tyre
700x42c
Max tyre clearance
53 mm
Fork material
SR Suntour NEX HLO suspension fork, 63mm travel
Bike DNAWhat the numbers say
Position
Stack-to-reach 1.51 gives a balanced, endurance riding position.
Steering
A 70.5 deg head angle points to stable, relaxed steering.
Climbing
Lowest ratio 0.77 is a very low climbing gear for steep or loaded climbs.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (backfill 2026-09-27: static.giant-bicycles.com), verified 2026-09-27. This is a specification analysis, not a physical ride review.