Giant Roam 3

Name: Giant Roam 3
Brand: Giant

2025 UrbanHybrid Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £699 Last known price
Fork travel: 63 mm
Wheels: 700c
Drivetrain: 2 × 9 30–46t / 11–36t
Gear range: 502%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 160–171
MD 169–181
LG 179–191
XL 189–200

Components

13 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

ALUXX-grade aluminum, disc Not identified

Suspension

2 parts

Fork
- SR Suntour NEX
Rear shock

None

Drivetrain

7 parts

Bottom bracket

threaded Not identified
Cassette
- Shimano CS-LG300-9 9 speeds
CS-LG300CS-LG3009
Chain
- KMC X11 11 speeds
Crankset

forged alloy, 30/46 S:170mm, M:170mm, L:175mm, XL:175mm Not identified
Front derailleur
- Shimano Cues FD-U4010 2 speeds
FD-U4010
Rear derailleur
- Shimano Cues RD-U3020 9 speeds
RD-U3020
Shifters
- Shimano Cues SL-U4000
SL-U4000

Brakes

2 parts

Brake levers
- Tektro
TKD-143
Brakes
- Tektro
TKD-143

Wheels and tires

5 parts

Front hub

alloy, 28h Not identified
Rear hub

alloy, 28h Not identified
Rims
- Giant
Spokes

stainless, 14g Not identified
Tires
- Giant

Cockpit and contact points

6 parts

Grips

ErgoContact Not identified
Handlebar
- Giant
Pedals

platform Not identified
Saddle

ErgoContact Not identified
Seatpost
- Giant
Stem
- Giant

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 410mm

Stack 620mm

Wheelbase 1098mm

Head angle 70.5°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	404	410	416	427
Stackmm	606	620	634	648
Top tube lengthmm	590	600	610	625
Seat tube lengthmm	420	460	500	550
Head tube lengthmm	115	130	145	160
Head tube angle	70.5°	70.5°	70.5°	70.5°
Seat tube angle	73°	73°	73°	73°
Chainstay lengthmm	450	450	450	450
Wheelbasemm	1088	1098	1109	1125
Front centermm	645	655	666	682
Bottom bracket dropmm	62	62	62	62
Standover heightmm	725	756	788	827
Fork rakemm	42	42	42	42
Trailmm	85	85	85	85
Stack/reach ratio	1.50	1.51	1.52	1.52
Suspension and parts
Crank lengthmm	170	170	175	175
Handlebar widthmm	640	680	680	680
Stem lengthmm	70	80	90	100

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 63 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 30
Largest chainring: 46
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 24.2 in
Highest gear: 121.3 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Coil
Tire clearance: Maximum tire width: 53c
Tire width: 42c
Wheel material: Aluminum
Wheel size: 700c

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.3 km/h
Highest gear: 46.4 km/h

Total gear range 502%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 24.2–121.3 gear inches

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2025 builds

Differences across 2025 builds
Specification	This bicycle Giant Roam 3	Giant Roam 1	Giant Roam 2	Giant Roam 4
Suspension
Front travel	63 mm	50 mm	63 mm	63 mm
Drivetrain
Front chainrings	2	1	1	2
Smallest chainring	30	42	40	30
Largest chainring	46	42	40	46
Rear sprockets	9	11	9	7
Smallest sprocket	11	11	11	12
Largest sprocket	36	45	46	32
Lowest gear	24.2 in	27.1 in	25.2 in	27.2 in
Highest gear	121.3 in	110.7 in	105.5 in	111.2 in
Other specifications
Bottom bracket standard	BSA	BSA	Not informed	BSA
Fork spring	Coil	Air	Coil	Coil