Giant Roam 4 2026 - Hybrid Sports Bike
The Giant Roam 4 is a versatile flat-bar bike designed for mixed terrain, combining ALUXX aluminium construction, a 63mm suspension fork, hydraulic disc brakes and a wide-range 2x8 drivetrain to keep your rides smooth and controlled.
Key Features:
- ALUXX aluminium frame with updated flat-bar geometry
- SR Suntour NEX fork with 63mm travel
- Shimano Altus 2x8 drivetrain
- Tektro TKD-143 hydraulic disc brakes
- Giant double-wall alloy wheels
- 700x42c CrossCut tyres with anti-puncture protection
- D-Fuse seatpost for added comfort
- Available with 0% APR finance
The Roam 4 is built for riders who want one bike to handle town rides, canal paths and light off-road exploring. Its ALUXX-grade aluminium frame uses single-butted 6061 tubing for a balance of strength and low weight, keeping the bike easy to handle on climbs and steady across rougher ground. The updated flat-bar geometry places you in a position that balances efficiency with stability, helping you stay confident whether you’re navigating traffic or heading onto gravel tracks.
Comfort is a key part of the Roam’s design. The D-Fuse seatpost features a distinctive D-shaped profile that allows controlled flex to reduce vibration from uneven surfaces. Paired with the SR Suntour NEX fork’s 63mm of travel, it helps smooth bumps and potholes so your ride feels calmer and more predictable. Giant’s EasyRide tubeless-ready approach means the CrossCut 700x42c tyres can run at lower pressures when set up tubeless, adding grip and further reducing the risk of punctures.
Shimano’s Altus 2x8 drivetrain provides dependable shifting with enough range for everyday climbs and mixed terrain. The 30/46 chainset and 11-34 cassette are well matched for steady spinning on longer rides. Hydraulic disc brakes from Tektro give reliable stopping power in different weather, helping you stay in control on damp roads or loose surfaces.
Giant double-wall alloy rims, stainless-steel spokes and 32h hubs create a durable wheel build suited to varied riding. Practical touches include integrated mounts for a rear rack, making it easy to carry luggage for commuting or touring.
Comfortable, adaptable and easy to ride, the Giant Roam 4 offers a smooth and controlled feel for riders exploring a mix of roads and paths in all conditions.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | ALUXX-Grade Aluminum, disc |
| Fork | SR Suntour NEX 700C, 63mm |
| Stem | Giant Contact, 8-degree S:70mm, M:80mm, L:90mm, XL:100mm |
| Bars | Giant Sport XC, 31.8mm S:64cm, M:68cm, L:68cm, XL:68cm |
| Front Brake | Tektro TKD-143 hydraulic [F]160mm, [R]160mm rotors |
| Rear Brake | Tektro TKD-143 hydraulic [F]160mm, [R]160mm rotors |
| Brake Lever | Tektro TKD-173 |
| Front Mech | Shimano Tourney FD-TY606 |
| Rear Mech | SHIMANO ALTUS RD-M310 |
| Shifters | Shimano Altus, 2x8 |
| Speed | 16 |
| Rims | Giant double wall aluminum |
| Front Hub | alloy, 32h |
| Rear Hub | alloy, 32h |
| Spokes | Stainless, 14g |
| Front Tyre | Giant CrossCut, anti-puncture, 700x42c |
| Rear Tyre | Giant CrossCut, anti-puncture, 700x42c |
| Seat Post | Giant D-Fuse, alloy, 350mm |
| Saddle | ErgoContact |
| Chainset | forged alloy, 30/46 S:170mm, M:170mm, L:175mm, XL:175mm |
| Bottom Bracket | threaded |
| Chain | KMC Z7 |
| Cassette | Shimano CS-HG31, 11x34 |
| Pedals | platform |
Giant Roam Sizing & Geometry
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Inside Leg (Inches) Vs Rider Height (Feet & Inches) |
26” |
27” |
28” |
29” |
30” |
31” |
32” |
33” |
34” |
35” |
36” |
37” |
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5’ 4” |
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S |
S |
S |
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5’ 5” |
S |
S |
S |
S |
S |
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5’ 6” |
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S |
S |
S |
S |
S |
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5’ 7” |
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S |
S |
S |
S |
S |
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5’ 8” |
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S |
S |
M |
M |
M |
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5’ 9” |
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M |
M |
M |
M |
M |
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5’ 10” |
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M |
M |
M |
M |
M |
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5’ 11” |
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M |
M |
M |
M |
M |
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6’ 0” |
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M |
M |
L |
L |
L |
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6’ 1” |
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L |
L |
L |
L |
L |
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6’ 2” |
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L |
L |
L |
L |
L |
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6’ 3” |
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L |
L |
L |
L |
L |
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6’ 4” |
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L |
L |
XL |
XL |
XL |
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6’ 5” |
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XL |
XL |
XL |
XL |
XL |
Giant Roam Geometry
| S | M | L | XL | |
|---|---|---|---|---|
| SEAT TUBE LENGTH (mm) | 420 | 460 | 510 | 550 |
| SEAT TUBE ANGLE | 73.0° | 73.0° | 73.0° | 73.0° |
| TOP TUBE LENGTH (mm) | 590 | 600 | 610 | 620 |
| HEAD TUBE LENGTH (mm) | 115 | 130 | 145 | 160 |
| HEAD TUBE ANGLE | 70.5° | 70.5° | 70.5° | 70.5° |
| FORK RAKE (mm) | 45 | 45 | 45 | 45 |
| TRAIL (mm) | 78 | 78 | 78 | 78 |
| WHEELBASE (mm) | 1096 | 1107 | 1118 | 1128 |
| CHAIN STAY LENGTH (mm) | 455 | 455 | 455 | 455 |
| BOTTOM BRACKET DROP (mm) | 60 | 60 | 60 | 60 |
| STACK (mm) | 596 | 611 | 625 | 639 |
| REACH (mm) | 408 | 413 | 419 | 425 |
| STAND OVER HEIGHT (mm) | 727 | 752 | 781 | 809 |
| HANDLEBAR WIDTH (mm) | 640 | 670 | 670 | 670 |
| STEM LENGTH (mm) | 90 | 100 | 110 | 110 |
| CRANK LENGTH (mm) | 170 | 172.5 | 172.5 | 175 |
| WHEEL SIZE | 700C | 700C | 700C | 700C |
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Giant Roam 4 2026 - Hybrid Sports Bike
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