Lightest road bikes 2026 — fantastically featherweight rides that barely tip the road.cc Scales of Truth

Reviewer Aaron Borill described the Cube Litening Air C:68X – SLX as one of the lightest and most responsive road bikes he has ever ridden, hitting the scales at just 6.55kg.

This is a bike that rides like a dream and makes light work of the hills; it puts forward a strong case for itself if you’re a racer who’s looking for a lightweight climbing bike. It also has enough aerodynamic features to make sure it can keep up on the flat too.

With SRAM’s top-level Red AXS groupset and Newmen Streem C.35/38 Vonoa carbon wheels on the model we reviewed, you get a strong component spec too.

The other key factor to bear in mind is that Cube generally offers incredible value across its range at the moment. £8,000 is a lot of money, of course, but this is a pro-level bike and many rivals are about 50% more expensive. Considering what you’re getting here, the value is excellent.

The Scott Addict RC Pro puts a huge premium on saving weight, the model we reviewed hitting the scales at just 6.58kg.

Our man Stu Kerton said, “It’s very light and hugely responsive, and also has one of the best ride qualities I’ve found on a super-stiff, pro peloton race machine. It’s a classic all-rounder, and while it’s a big investment, in the current marketplace it’s very well specced for the price.”

The weight on the scales might immediately grab your attention, but it’s the ride quality that most impressed us about the Scott Addict RC Pro; it’s stunning.

The frame feels stiff around the bottom bracket and head tube, the fork legs resist flex under heavy braking, and the ride is certainly on the firm side, but Scott has managed to bring in just enough compliance to offset any harshness, resulting in a relatively smooth ride, even on less-than-perfect road surfaces.

Liv is a dedicated women’s cycling brand and a sister company of Giant, the Langma being effectively the equivalent of the Giant TCR.

Coming in at 7.24kg on the road.cc Scales of Truth, the Liv Langma Advanced Pro 1 is an exceptional lightweight road bike with a racing pedigree, yet it has the ability to remain stable (and fast) on the flats. It’s a great all-rounder, and competitively priced, too – especially now that Liv has reduced it to £3,999 (it was £4,899 when we reviewed it in 2025).

Reviewer Rebecca Bland described the ride as ‘sublime’. What she really enjoyed was the superb power transfer. Climb out of the saddle and it responds beautifully, and the acceleration is direct.

“It’s just a joyous machine to pedal, particularly when the road points up,” she said.

The Liv Langma range covers prices from £2,299 right up to £10,499.

The Nexar FRD sits at the top of Felt’s range of aero road bikes, and the good news is that it’s quick, easy to ride and surprisingly comfortable too. The model that we reviewed hit the road.cc Scales of Truth at just 6.62kg – which is seriously light for an aero bike.

Lightweight bikes with huge, stiff aero tubes aren’t renowned for their ability to absorb vibrations, but this is among the Nexar’s standout features.

Plus, although most aero bikes put you into a long-and-low ride position, Felt has given the Nexar a slightly higher stack height than normal, and a shorter reach, allowing you to hold speed in the real world.

“I felt like I was on a high-performance race machine and could easily get low enough for efficiency and cheating air resistance, but I could also hold that position for a long time,” said reviewer Stu Kerton. “Being less stretched out, even by a few millimetres, made a massive difference to comfort.”

If the top-end price puts you off, the Felt Nexar range starts at £4,675 – although the weight goes up as the cost comes down.

At the time of writing (May 2026), all the signs are that Specialized is about to launch an updated Tarmac, and that might already have happened by the time you’re reading this. Either way, the Tarmac SL8 is likely to be available for a while yet, as long as you’re prepared to look around.

Specialized shed weight from its flagship do-it-all road racing frame, the SL8 coming in 120g lighter than the SL7 at an impressive 680g. It meant our top-of-the-range test bike was just over the UCI weight limit with mid-depth aero wheels, so there was scope to cut the weight even further.

The SL8 also saw a big change at the front with the addition of the Speed Sniffer head tube, said to improve aerodynamics. Specialized says the SL8 is faster and more compliant than its predecessor (when have you heard anything else) and our reviewer was also very impressed with the stiffness, considering the bottom bracket area has been slimmed down.

With top-end Roval wheels in depths of 51mm at the front and 60mm at the rear plus SRAM eTap AXS 12-speed shifting, the S-Works SL8 is a no-compromise racing machine suitable for elite riders, but with comfort and lightness that will appeal to all. If money is no object, this is one superbike that won’t disappoint.

With a very low weight (6.75kg without pedals for our review bike) and top-end components like SRAM’s Red groupset, the Canyon Ultimate CFR AXS is a stiff and agile race bike that puts in a stunning performance.

Some lightweight bikes can feel skittish, but the Ultimate CFR delivers a smooth ride.

“You are getting one of the best bikes money can buy,” said reviewer Stu Kerton. “It’s light, nimble, very stiff and an all-round great bike to ride.”

The Ultimate was last redesigned in September 2022, meaning that it’s about due for an update if Canyon sticks to its usual product cycle. It also means you could get a good price on the existing version if you keep your eyes on Canyon’s website.

Weighing 7.2kg and offering supreme comfort, the Defy should be high on your wishlist if comfort over long distances is your priority. There are much less expensive build options of course, if your budget doesn’t stretch this high

Our reviewer praised the lovely amount of flex from the D-Fuse technology, and the chunky 32mm tubeless tyres increase comfort further. It’s a very smooth ride, and the tweaked geometry – offering a slightly shorter head tube than the previous version – makes the Defy a touch racier. With full internal cable routing and semi-aero wheels, there’s no need to swerve the Defy if you want to go fast.

While the price is high, the Defy does everything it says it will do and is surprisingly lively for an endurance bike. You’ll get most of the benefits of this hero model further down the range, too.

“A master of climbing,” according to our reviewer, the Factor O2 VAM we had in weighed 6.99kg with a second-tier SRAM Force groupset, so there’s scope to drop the weight even lower. It’s also available with a Shimano Ultegra Di2 groupset at a slightly lower price.

Fast and light, the O2 VAM has no twitchiness about it and can be chucked into corners or sped up on the flats as aggressively as an aero road bike.

Everything is fully integrated and you get a top-end finishing kit, including a Black Inc cockpit and wheels. The ride quality is excellent, and Factor has done a great job of creating a frame that feels very planted and joyous to ride.

This Team model uses the fifth generation of the Scultura frameset, which shares the geometry of Merida’s aero race bike, the Reacto, and shares some of the wind-cheating design features too.

There is a huge amount of stiffness throughout for coping with explosive leg power, while the handling is fast, and very precise indeed. We did find the top half of the frame and the fork to give a very comfortable ride too, which wiped out any road buzz without muting the feedback.

At 7.1kg this build feels impressively quick when accelerating or maintaining speed on the flat, and it climbs well for a bike with decent amounts of aero tube shaping. It also looks the business with its smooth lines thanks to full internal cable and hose routing, plus an integrated seatpost clamp.

As you can see from the bikes in the list above, carbon pretty much rules when it comes to keeping the weight down. That’s not to say that the various metal alloys can’t compete.

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One of the lightest metal bikes we’ve recently reviewed is this Reilly Fusion, at 8.27kg including the electronic groupset and deep-section wheels, so you could still cut some grams if you wished.

Apart from weight, the other reason it is on this list is thanks to the ride quality – a blend of stiffness and comfort which easily matches that of a sorted carbon fibre frame.

Complete Reilly Fusion bikes start at £5999.

While not the lightest bike available at 7.4kg, Ridley’s Falcn RS has aero wheels and a SRAM Force groupset, so could easily go under 7kg with some lighter components and finishing kit.

The Falcn is very much an all-rounder, with a fast and light frameset that is capable of taking up to 34mm tyres. Our reviewer said the frame offered an involving and responsive ride, and it’s bang in the middle of fast and comfortable.

The Falcn looks modern with very neat integration, and is well worthy of your consideration if you want a do-it-all road bike.

Aero bikes aren’t renowned for their low weight, but even built with its oversized tubing, electronic groupset and deep section wheels, this model is about half a kilo over the UCI weight limit at just 7.35kg.

When Aaron reviewed this bike for road.cc, he described it as one of the best all-round aero road bikes that is available right now due to it being ridiculously fast yet super-easy to live with as an everyday bike, the highlights being a very stiff frame which also passes on plenty in terms of feedback to the rider, and a front end geometry that gives fun and direct handling in the bends.

It may not be the top-end bike in the Foil line-up, but this Pro model still comes equipped with the latest Shimano Dura-Ace Di2 groupset, fully integrated carbon fibre handlebar and stem, plus Syncros Capital 1.0S Aero 60mm wheels.

If aero is your thing but you don’t want a weight penalty, then this offering from Scott does tick a lot of the boxes when it comes to performance. Your only issue might be getting your hands on one; last time we checked, stock was low.

If you’re spending £13,000 on a bike, you’d expect it to be near perfect, and the Pinarello Dogma F Dura Ace Di2 doesn’t disappoint

“Subtle tweaks have honed the performance, handling and efficiency to a level that it really can’t be faulted,” said our reviewer, Stu Kerton. It must be said, though, that there’s tough competition for a lot less cash.

Our review bike weighed 6.82kg (without pedals), which is just a touch over the UCI’s minimum limit, so you’ll have no trouble with the commissaires if you ever find yourself racing in the Tour de France… You never know.

This bike is ridden at the highest level by Netcompany-Ineos Cycling Team so it’s no surprise that its main focus is on stiffness and efficiency, with comfort less of a priority. If you’re not a fan of a firm ride, you might prefer Pinarello’s endurance version, the Dogma X.

If you want a full-on race bike, though, this one puts in an incredible performance.

The Giant TCR Advanced Pro 0 AXS is an excellent all-round race bike that’s light, efficient, and offers a superb ride quality. It comes complete with some very good components, including a wireless SRAM Force AXS groupset with a power meter.

Our large-sized review model weighed in at 7.26kg and Giant claims a frame weight of 800g. That’s not as light as the top-level TCR Advanced SL frame (690g), but it’s still impressive, especially for something that offers a high level of stiffness along with ‘truncated ellipse tubing’ designed to improve aero efficiency.

As you might expect, the Giant TCR Advanced Pro 0 AXS is superbly reactive when you crank up the power, and it offers loads of comfort too, as long as you’re flexible enough to handle the race bike fit.

It offered great value when we reviewed it at £6,699, while the 2026 version is £1,000 cheaper.

Although Orbea’s Orca Aero focuses on reducing drag, the straight Orca is all about being as light, stiff and efficient on climbs as it possibly can be, the M10iLTD PWR that we reviewed coming in at 7.04kg.

As long as you aren’t racing against the clock, it feels incredibly efficient, purposeful and lots of fun. You can also specify frame colours and components to give some degree of personalisation. After all, if you are spending a lot of money on a bike, you’d like it to be distinctive and exactly what you want.

Reviewer Stu Kerton remarked on how tight the bottom bracket area of the Orca’s frame felt, while the chunky chainstays keep the rear wheel in check when powering hard out of the saddle.

It doesn’t suffer from skittishness over poor road surfaces, and while the geometry is race-orientated, the Orca handles very well, allowing you to take corners at speed.

If you’re looking for a lightweight, high-performance road bike, the Orca should definitely be on your shortlist.

Whereas the Tarmac is Specialized’s principal road-race bike, the Aethos 2 is its even lighter sibling, our review model coming in at 6.96kg. Although priced at £5,499, this is the entry model in the Aethos 2 range, built up with Shimano’s second-tier Ultegra Di2 groupset and Roval C38 wheels.

Specialized has made some geometry tweaks compared with the original Aethos, adding a little height to the front end and, in the process, making the bike suitable for a wider range of riders.

Reviewer Stu Kerton described the ride quality as “smooth-but-connected”, and he found that he could comfortably ride the Aethos for hours at a time because none of the contact points was beating him up. Chunky chainstays and a large bottom bracket area create stiffness where it’s needed, and a sub-metre wheelbase makes for a nippy and nimble feel.

It’s the perfect bike if you ride a lot of hills, and the now slightly more relaxed geometry is very comfortable on the long climbs. That lack of weight certainly helps too.