Best Gravel Bikes of 2021: Seven Standout Models Worth Knowing

Introduction

Gravel bikes had a big year in 2021, and the sheer number of new launches is a clear sign of how popular the category has become. What stands out most is the range. At one end there are aero-optimised race machines built to go fast on smooth gravel. At the other there are capable, mount-covered adventure bikes designed around bikepacking. In between sit cyclocross bikes given a gravel makeover, and one bike with suspension at both ends.

This roundup looks at the most interesting gravel bikes that arrived over the past year, what each one is built for, and who should consider it.

Scott Addict Gravel

The Scott Addict Gravel lands squarely in the speed-focused, aero race-optimised corner of the gravel market, alongside bikes like the Cervélo Áspero and the 3T Exploro RaceMax. It borrows the name of the road platform it is based on, and the family resemblance is obvious in both the silhouette and the shared technology.

The updated frame brings bigger tyre clearance, revised geometry, and aero-optimised tube profiles in the down tube, seat tube and seat post. There is a one-piece carbon handlebar and stem with fully internal cable routing at the front, and despite the racing intent there are still mounts for extra bags, racks and bottles. That makes it a plausible fast, lightweight bikepacking option rather than a rugged expedition machine.

Availability is the main catch. The bike has been extremely hard to find, and a wider release is not expected until 2022. On paper, though, it looks like a compelling race-oriented gravel bike.

Cervélo Áspero

The Cervélo Áspero occupies the same speed-focused, aero race-optimised slice of the gravel market as the Scott Addict Gravel and the 3T Exploro RaceMax. It is built around the idea of racing on gravel rather than loading up for a multi-day tour, and that positioning is what defines the bike.

If your riding leans toward fast gravel events, hard efforts and smooth-to-mixed surfaces, this is the category to look at. Riders who need generous mounting points for bikepacking luggage will find more suitable options elsewhere in this roundup.

3T Exploro RaceMax

The 3T Exploro RaceMax completes the aero gravel trio covered here. Like the Scott Addict Gravel and the Cervélo Áspero, it is aimed at riders who treat gravel as a race surface and want the efficiency of a road-derived platform underneath them.

For that audience the appeal is straightforward: a bike that feels quick on hardpack and smooth gravel, with geometry and aerodynamics drawn from the road side of the sport rather than from touring.

Specialized Crux

The Specialized Crux keeps its cyclocross DNA. That heritage matters, because the platform began life as a one-hour race machine, and the latest version retains the race focus while adding the changes that make it a genuinely useful gravel bike as well.

Tyre clearance is now up to 47mm, matching the company’s dedicated gravel model. The geometry has been revised too, with a lower bottom bracket than the previous Crux, a longer reach and a shorter stem for more planted, stable handling. The frame uses round tube profiles with external cable routing, an external bottom bracket and an external seat clamp.

The headline numbers are a claimed frame weight of 725g for a 56cm frame and a complete S-Works build claimed at 7.25kg, which is lighter than many road bikes. What it does not have is mudguard mounts, extra bottle or accessory mounts, or top-tube mounts, so it stays a clean race-focused machine. For riders who split their time between cyclocross and gravel, that trade-off makes sense.

Canyon Grizl

Canyon’s second gravel platform drops the distinctive hover handlebar of the Grail in favour of a conventional handlebar and stem, which makes the bike easier to live with and simpler to adjust.

Clearance runs to 50mm tyres, with 45mm fitted as standard, and there are eyelets for extra bottles, bags and mudguards. Canyon also offers bespoke Apidura bags for a complete out-of-the-box bikepacking setup. Geometry follows the Grail’s long reach and short stem approach, which works well off-road. An aluminium version offers even better value, and there is a build with a RockShox Rudy suspension fork.

On woodland trails and bikepacking routes, the Grizl prioritises comfort and control over outright speed, and the conventional cockpit makes it an easy bike to live with day to day.

Giant Revolt Advanced

The Giant Revolt Advanced was updated for 2021 into a lighter, faster and more versatile version of an already solid platform.

The frame is lighter, tyre clearance is bigger, and the geometry is adjustable. There are more accessory mounts than before, including room for up to six water bottles, plus mudguard mounts that make it a strong winter road bike option. The long reach and short stem setup works well off-road while keeping a good fit on the road.

Value remains the standout. The top-end model comes in around £5,000 with a carbon frame, GRX Di2 and carbon wheels, at a time when some brands charge considerably more for their flagship gravel builds.

BMC Unrestricted LT

The BMC Unrestricted LT is the most unusual bike here, and the most interesting on paper. It is a dual-suspension gravel bike, though the rear end is not a conventional shock: flexible rear stays combined with an elastomer at the seat tube allow up to 10mm of rear wheel movement, enough to take the edge off roots and rocks.

New for this version is front suspension with a claimed 20mm of travel, developed with the Italian suspension specialist HiRide. It uses a coil spring with three springs to choose from depending on rider weight, plus preload adjustment and a lockout for road riding. Because the system is integrated into the frame, the bike does not look obviously different from a conventional gravel bike at a distance.

The obvious question is maintenance, and how the extra complexity holds up over time. Riders who want more comfort and control on rough gravel without moving to a full mountain bike setup are the natural audience here.

How to Choose Among These Gravel Bikes

The 2021 launches show how broad the category has become. Speed-focused aero gravel bikes like the Scott Addict Gravel, Cervélo Áspero and 3T Exploro RaceMax suit fast riding and smooth gravel racing. Cross-derived machines like the Specialized Crux blur the line between cyclocross and gravel. Bikes like the Canyon Grizl and Giant Revolt Advanced lean toward comfort, mounting points and value, while the BMC Unrestricted LT goes furthest in adding suspension and compliance.

Start with the surface you actually ride most and the luggage you actually carry. If you race, aero efficiency and low weight matter. If you explore, mounts, tyre clearance and comfort matter more. And if your budget is fixed, the value on offer from Canyon and Giant is worth weighing carefully against the more specialised options.

Conclusion

2021 delivered an unusually wide spread of gravel bikes, from race-ready aero machines to suspension-equipped explorers. The right choice depends far less on which bike is fastest on paper and far more on the riding you do most often.