Giant Roam Disc 4

Name: Giant Roam Disc 4
Brand: Giant

2024 UrbanHybrid Manufacturer page

Last known price: $650

Prices shown first for United States
Fork travel: 63 mm
Wheels: 700c
Drivetrain: 2 × 7 30–46t / 12–32t
Gear range: 409%
Weight: 13.18 kg 29.1 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical 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-HG200
CS-HG200
Chain
- KMC Z7 7 speeds
Crankset

forged alloy, 30/46 S:170mm, M:170mm, L:175mm, XL:175mm Not identified
Front derailleur
- Shimano Tourney FD-TY606 2 speeds
FD-TY606
Rear derailleur
- Shimano Tourney
Shifters
- Shimano Altus

Brakes

2 parts

Brake levers
- Tektro
TKD-172
Brakes
- Tektro
TKD-172

Wheels and tires

5 parts

Front hub

alloy, 32h Not identified
Rear hub

alloy, 32h 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
Bicycle weight: 13.18 kg

29.1 lb

Suspension

Suspension configuration: Hardtail
Front travel: 63 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 30
Largest chainring: 46
Rear sprockets: 7
Smallest sprocket: 12
Largest sprocket: 32
Lowest gear: 27.2 in
Highest gear: 111.2 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical 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: 10.4 km/h
Highest gear: 42.6 km/h

Total gear range 409%

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: 27.2–111.2 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 2024 builds
Specification	This bicycle Giant Roam Disc 4	Giant Roam Disc 0	Giant Roam Disc 1	Giant Roam Disc 2	Giant Roam Disc 3
Frame
Bicycle weight	13.18 kg	Not informed	Not informed	12.92 kg	Not informed
Fork material	Not informed	Aluminum	Not informed	Not informed	Not informed
Drivetrain
Front chainrings	2	1	2	1	2
Smallest chainring	30	42	30	40	30
Largest chainring	46	42	46	40	46
Rear sprockets	7	11	10	9	8
Smallest sprocket	12	11	11	11	11
Largest sprocket	32	45	39	46	34
Lowest gear	27.2 in	27.1 in	22.3 in	25.2 in	25.6 in
Highest gear	111.2 in	110.7 in	121.3 in	105.5 in	121.3 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Hydraulic disc	Mechanical disc	Hydraulic disc
Other specifications
Bottom bracket standard	BSA	Not informed	BSA	BSA	BSA
Fork spring	Coil	Air	Air	Coil	Coil

Changes since 2023
Specification	2023 Giant Roam Disc 4	This bicycle Giant Roam Disc 4
Frame
Bicycle weight	Not informed	13.18 kg
Drivetrain
Front chainrings	3	2
Smallest chainring	28	30
Largest chainring	48	46
Lowest gear	25.4 in	27.2 in
Highest gear	116.0 in	111.2 in
Brakes
Brake type	Hydraulic disc	Mechanical disc