Giant FastRoad Comax 2 review

Can the FastRoad live up to its name?

Our rating 
4.5 out of 5 star rating 4.5
GBP £1,399.00 RRP | AUD $2,099.00

Our review

A true all-day fitness bike that offers exceptional value for the ride
Buy if, You want a sensible and comfortable yet confidence-instilling bike, however long you’re in the saddle
Pros: Rider friendly, ride-forgiving carbon frame and fork, sensible drivetrain
Cons: Narrow bar, 10-speed gears, tyres not as wide as some
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Giant has been making carbon composite bikes longer than most, and brings a huge wealth of experience to the table. Here, it offers a fairly priced carbon bike with a sensible component package.


As the name suggests this bike has been designed to pedal fast on the tarmac, combining road speed and competence with the comfort and forgiving ride of a flat-bar bike.

Giant FastRoad Comax 2 frame and kit

While the curved frame might look funky it’s designed to deliver a rider friendly and compliant ride. The jury’s out on the looks but you don’t notice this once you’re pedalling.

These curved tubes give the illusion of the head-tube being long with a high front-end, but the 130mm head-tube here isn’t dissimilar to many drop-bar endurance bikes.

The D-Fuse composite seatpost provides a little more comfort
The D-Fuse composite seatpost provides a little more comfort
David Caudery/Immediate Media

On the road there’s a good balance between speed, upright stability and comfort. The front end feels stiff and precise thanks to Giant’s OverDrive tapered steerer that runs 1 1/4in lower and 1 1/8in upper bearings. The steering instills confidence thanks to its stability — I never had any twitchy issues regardless of my speed.

With this frame, it’s more about what you don’t notice. Its compliance plus the D-Fuse composite seatpost soak up road vibrations, making the FastRoad feel comfortable and forgiving.

While it’s not a sharp shooter it never feels slow or sluggish, and continues to deliver a comfortable ride, however long you’re in the saddle.

The narrow bar has room for Shimano Tiagra shifters
The narrow bar has room for Shimano Tiagra shifters
David Caudery/Immediate Media

The 10-speed Shimano Tiagra gears front and rear do a solid job, and help to keep the overall price of the bike down. The wide range of gear options available from the 11/34 cassette and FC-RS400 50/34 compact chainset meant I never missed it not being 11-speed.

The cockpit is user friendly and Giant’s Connect flat bar is inoffensive and comes with its own Contact Ergo bar ends. I didn’t use them much during testing, but if you come from a mountain bike or spin-class world, you will probably make good use of them.

The forgiving and friendly nature of the Giant is hard to beat
The forgiving and friendly nature of the Giant is hard to beat
Robert Smith

The bar is narrow at 56cm including bar ends, and I really noticed it initially, missing the chance to tuck into wider bars on fast descents. For all other duties, it felt good and not dissimilar to being sat up on road bars.

Giant’s own brand wheels are okay and benefit from being laced with quality Sapim spokes. They’re also tubeless ready to help avoid pinch punctures, so you can run the 28mm Giant Gavia AC tyres at lower pressures. I found that the Gavias worked fine on the road but did start to struggle when I came to gravel.

As a package the FastRoad is an extremely capable bike
As a package the FastRoad is an extremely capable bike
Robert Smith

Giant FastRoad Comax 2 overall

As a package, the FastRoad is an extremely capable bike, regardless of the distances you want to cover. Giant has given it a rider-friendly spec and has used its experience in carbon construction to make sure the bike has a forgiving ride.


It’s stable and reassuring, ideal for all-day rides. That’s not to say it’s not fun to ride, it is. It’s just not as edgy as some. Best of all it offers great value considering what you get for the money.

Product Specifications


Name FastRoad Comax 2
Brand Giant

Available Sizes S M M/L L
Seat Tube (cm) 45
Shifters Shimano Tiagra
Stem Giant Connect
Trail 6.8
Weight (kg) 9.75
Wheelset Giant PR2 Disc
Chainstays (cm) 43
Top Tube (cm) 53
Seat Angle 74
Wheelbase (cm) 100
Frame size tested S
Head Tube (cm) 13
Stack (cm) 53.9
Reach (cm) 37.5
All measurements for frame size tested S
Seatpost Giant D-Fuse Composite
Saddle Giant Contact (Neutral)
Bottom Bracket Shimano press-fit
Frame Material CoMax Composite Technology
Brakes Shimano M315 hydraulic disc
Cassette Shimano HG500 11-34
Chain KMC X10
Cranks Shimano Tiagra, 50/34
Fork Advanced-grade Composite, alloy steerer
Fork Offset 4.75
Front Derailleur Shimano Tiagra
Rear Wheel Weight 2240
Front Tyre Giant Gavia AC 2 tubeless, 28mm
Front Wheel Weight 1630
Handlebar Giant Connect Flat, Contact Ergo bar ends
Head Angle 71
Headset Type FSA
Rear Derailleur Shimano Tiagra
Rear Tyre Giant Gavia AC 2 tubeless, 28mm
Bottom-bracket drop (cm) 7