Stock Status. Ships Today. Out of Stock. Air Pressure Gauges 1. BB30 Bearings 2. Bells Bottom Bracket Cable Guides Brake Lever Grip Covers 9. Brake Levers 0. Cageless Water Bottles Cannondale Complete Bottom Brackets 5. Cannondale Complete Crank Sets 2. Cannondale Frame Protectors Cannondale Frame Shock Links Cannondale Saddles 2.

Cannondale Seatpost Wedge 5. Cannondale Si Headsets Cannondale Single Crank Arms Cannondale SystemBar Stems Cassettes Chain Lubes 0. Chain Tools Chainring Bash Guards 0. Chainring Bolts 3.

cannondale lefty

Charge Saddles Clipless Pedal Cleats 1. Clipless Pedals CO2 Cartridges 0. CO2 Inflators 5. Complete Crank Sets 0. Complete Kids Bikes 0. Complete Mountain Bikes 0. Complete Recreation Bikes 0. Complete Road Bikes 0. Cycling Gloves 0. Cycling Shoes 0. Cycling Socks 0. Derailleur Hangers Disc Brake Caliper Adapters 9. Disc Brake Pads For decades now Cannondale has been known as a bike brand not afraid to push the limits with new innovation. Sometimes the pushiness has paid off, sometimes not.

Things like their radical Lefty suspension fork have proven themselves over time, but it definitely took a while for it to truly get dialed in. As with the rest of the industry, the explosion in popularity of the gravel segment has brought a new willingness to approach bike design and technologies differently, with suspension proving to be the ultimate arbiter of possibility.

A few months later Zap wrestled the bike away from the multi-time national champion and used it to race at Dirty Kanza. To be honest, it was one of our least favorite bikes to date.

The fork was good, the frame was nice, but combined with the wheels, none of it ever seemed to work in harmony. In spite of its less-than-ideal characteristics, Cannondale team rider Ted King showed its detractors up by using one to win Dirty Kanza in Well, it looks like Cannondale stayed inspired enough with the overall concept of the Slate to introduce a new, fully suspended version of their Topstone gravel bike that they introduced last year.

Still using their proprietary Kingpin rear suspension, the new Topstone frame is pretty much unchanged from its predecessor. It has the same geometry and size run as the bike we tested last year. And as oversold as the benefit of the Kingpin at the pivot point is, it has never suffered from any problems in testing. A cm wheelbase matched with a Internal routing keeps things tidy and the BB30 means there are plenty of crank and spindle options.

The Oliver is similar to their most recent mountain bike version with a single crown, but the damping and travel have been fine-tuned for gravel and all-road use. The fork has no negative air chamber, making it significantly more supportive and stiff on the top with a fairly progressive tune. This makes it stiff and supportive for most riding, but supple enough for the rough stuff. The fork is offered in either a carbon or alloy version.

cannondale lefty

Cannondale claims the carbon fork weighs grams, while the aluminum version is grams. Both have the same internals with a large lockout lever on the top of the single fork leg that, when closed, still offers a blow-off. The fork uses a flat-mount caliper but has a new tool-less quick-release feature to remove the caliper. This is useful in removing the front wheel as it exits off the side.

The fork stock fits x47mm tires on all bikes, but can be modified to also fit x45mm; however, you will have to take it to your local bike shop for the fix. The Oliver fits the Lefty 50 hub that has been on the market for many years. This makes wheel upgrades and availability a bit easier. The new suspension bikes both roll on b WTB alloy rims mounted with a mixed set of tubeless-ready WTB tires—a 47mm Byway in the rear and a 47mm Venture upfront, which keep things fast and efficient for their size.

Gearing is left to Shimano with their GRX mechanical 1x drivetrain. The Cannondale alloy 40t crank is matched to an cassette. In-house Cannondale-branded alloy bars, stem and carbon seatpost all help keep the price down.The Ocho is the eighth iteration of the Cannondale Lefty in a cross-country guise and, alongside many internal updates, has made a move from a dual-crown design to a single-crown, giving the fork a profile that is totally unique in the mountain bike world.

Why name the fork in Spanish? Fair enough! The biggest story is, of course, the move from a dual-crown setup to a more conventional single-crown configuration.

Lefty/Headshok Damper + Air Seal Kits

This has dropped a not-insignificant g from the previous fork while surpassing it in stiffness. Cannondale claims that it could have gone even lighter with the new fork, but this would have significantly compromised stiffness.

The new Lefty Ocho is claimed to be stiffer laterally and stiffer fore and aft than the previous generation.

cannondale lefty

If true, this is an impressive feat for a platform that was already stupendously stiff in its short-travel guises. However, in a fairly unconventional move for the world of cross-country where stiffness triumphs over all elsethe torsional stiffness of the Lefty Ocho is 14 percent lower than the old fork in a bid to improve tracking in rough terrain. Chief among the changes to the internals of the fork is the move from four to three roller-bearing assemblies.

This triangulated arrangement is said to significantly reduce friction as well as weight. All three of the roller bearing assemblies are now held together by a lightweight plastic cage, which Cannondale calls the Delta Cage. This ensures that the bearing assemblies cannot move independently of each other, again reducing friction. All of this adds up to a fork that is claimed to have a whopping percent lower static friction and 75 percent less dynamic friction than a Fox 32 or Rockshox SID.

Those who maintain their own bikes will be delighted to hear that the Lefty Ocho features a cable lockout remote. The funky hydraulic lockout on the old fork was cool but notoriously fiddly to service. Tuning wise, the fork features six clicks of compression adjustment and 23 clicks of rebound adjustment. Unofficially, it was technically possible to add volume spacers to the old fork, but the new Ocho now features proper OEM volume spacers, which Cannondale is calling Ramp Clamps.

Adding a pair of these increases the force required to bottom out the fork by roughly 10 percent. A particularly nice touch on the fork is the side-loaded air valve. This is much easier to access than the old bottom-mounted valve and is angled such that it will never skoosh fluid anywhere near the rotor when adjusting pressure.

The fork retains the moto-style Guide Guard carbon stanchion cover, though this has been significantly slimmed down. This means that the new Lefty Ocho will work with pretty much any modern cross-country bike out there. The new fork uses the same hub standard as old, so any wheels built around a Lefty hub from the last few years should work. The new Lefty Ocho features the all-new Stop Lock brake mount, a funky new quick release system that releases the caliper and mount by holding down a button and turning the 5mm-head bolt degrees.

Jack has been riding and fettling bikes for his whole life. Always in search of the hippest new niche in cycling, Jack is a self-confessed gravel dork, fixie-botherer, tandem-evangelist, hill-climbing try hard, and thinks nothing of taking on a daft challenge for the BikeRadar YouTube channel. With a near encyclopaedic knowledge of cycling tech — from the most esoteric niche nonsense to the most cutting edge modern kit — Jack takes pride in his ability to seek out tech and stories that would otherwise go unreported.

Jack has been at BikeRadar for three years now and is regularly testing an esoteric mix of weird and wonderful bikes.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Bicycles Stack Exchange is a question and answer site for people who build and repair bicycles, people who train cycling, or commute on bicycles. It only takes a minute to sign up.

With the single-legged fork the fork and axle must resist huge bending all the time, producing even more of a problem than with the 2-legged fork under uneven compression.

The single-legged fork must truly withstand heavier bending forces than conventional forks, simply due to physics and asymmetricity. But because of its different construction, the fork is actually stiffer than most 2-legged. The wheel axle is one-piece with the bottom part, which is stiffer than a quick-release axle which is not solid at all and on same level as a 15 thru-axle or 20 thru-axle.

This design is used also on cars where the wheel doesn't have support from the other side. The biggest difference is inside. While normal forks have round tubes that slide on oil film, the Lefty uses needle bearings on a square profile same as the front leg of Boeing airliners. Such solution works with almost same friction under heavy side-loads, whereas sliding tubes, when side-loaded uneven compression of legsdo get friction losses rolling resistance wins. Having conventional fork with one leg wouldn't work, such a fork would get stuck.

Having bearing-fitted 2-legged fork is an overkill and unnecessary weight. Pre models of Lefty are not sealed, having the bearings track just under a rubber sleeve. This required almost constant maintenance. Post models have a rubber-sealed leg with bearings further inside and with one plain bearing at the bottom which allows for service intervals as normal forks:.

Previous models, as some bikers on forums complained, had more linear action: they were easier to bottom than normal forks. So now the newer ones should have more progressive compression.

This is opinion based, but quite a lot of it online, there are no measurements. A Lefty is much harder to service than a normal fork. You need a couple of special tools, and the assembly is complicated.The full-suspension Cannondale Topstone Carbon Lefty sports a KingPin rear suspension system and the Lefty Oliver fork in the front, both of which roll on b wheels. The Carbon Lefty was even designed to accept an internally-routed The Topstone Carbon comes with x 37c tires while the Topstone Carbon Lefty comes with x 47c tires, both ample for handling nearly any road surface thrown underneath it.

The Cannondale Lefty Oliver is a lightweight, single-crown suspension fork, built specifically for gravel riding. Inspired by the more-robust cross-country Lefty Ocho fork, the Lefty Oliver features 30mm of travel made possible by the same type of needle bearing internals in its beefier brethren.

The Lefty Oliver features a lockout with a blow-off circuit, so it can still absorb impacts even when engaged. The Lefty Oliver fork features a new, tool-free, StopLock brake mount designed for flat-mount calipers, which should make for easy wheel swaps. Topstone Pricing As configured pricing is expected to be:. The rigid carbon fork on the Topstone Neo Carbon promises a nimble yet stable feel both on- and off-road, while the Topstone Neo Carbon Lefty features a Lefty Oliver fork, KingPin suspension in the rear, and x 48c tires.

All the above models feature a removable fender bridge mount, Speed Release thru-axles, and DirectLine internal cable routing. Models with the KingPin rear suspension feature the LockR thru-axle pivot locks so the left and right seat-stays move together, preventing independent rotation, which should offer a responsive and smoother feel.

For more information on the Topstone, visit www. Get the latest race news, results, commentary, and tech, delivered daily to your inbox. Cannondale Topstone Neo Carbon geometry. Cannondale Topstone Carbon Lefty geometry. Weekly Newsletter Get the latest race news, results, commentary, and tech, delivered daily to your inbox. Newsletter sign-up.Gravel bikes are a growing category. Once these bikes got in the hands of thousands of riders, some of them found themselves tempted to push the limits of what was fun, or comfortable, on rigid bikes.

Other people felt it necessary to take those same bikes and conduct what amounted to really long road races on less favourable surfaces. A bike which is fun for the latter will be petrifying for the former, and a bike designed to ride drops and rock gardens is never going to win gravel races like The Rift, which traverses the lava fields in Iceland.

Cannondale, seeing the extent of variation in the gravel market, has diversified its gravel line to provide something for everyone. Looking to insure your new bike? With b wheels, 47mm tyres, and the very distinctive Lefty Oliver fork, this bike would not look out of place on a cross country trail were it not for the drop bars. The obvious innovation here is the fork. It is supple and responsive and really does make riding trails more fun.

The now dual approach is a winner with me. This difference was so pronounced that I asked Cannondale if I could fit a lefty fork to the Topstone in order to race Leadville Trail a relatively non-technical mountain bike race.

Of course, I was told to wait. The Lefty fork that is now specced as standard offers 30mm of travel, a bit less than I would want for Leadville, but enough to make trail riding more fun without sacrificing much in the way of on-road efficiency.

In its new full-suspension guise, the front of the Cannondale Topstone Lefty felt grippy and planted in corners. I did find on rocky climbs I encountered some rear wheel slip, but this could be down to a number of factors. Looking at the back end, the short chainstays mm chainstays on the Topstone are mm shorter than most competing gravel bikes give the Topstone very responsive handling.

This is less in keeping with other gravel bikes, which typically use a longer chainstay to create a geo more akin to mountain bikes.

The not-so-minor details

The short stays do limit tyre clearance more on that later. On my test bike I used a hacksaw to cut down the supplied post a little. With that said, this bike is a lot of fun. I have been riding it off, into, and over things this summer and it never fails to put a smile on my face. There are plenty of braze ons for mudguards and storage. The bike is dropper post ready and comes with a 1x GRX groupset that could easily be switched for a PRO dropper with left lever actuation.

As soon as pandemic stock allows, I will be fitting one. The GRX shifting and braking are impeccable as always. Combined with a comfy Fabric saddle the overall spec of this bike is really well thought out by someone who clearly likes to ride and not just look at a spreadsheet all day. The speed release rear axle makes taking the rear wheel off easy and the tool free front wheel release is also intuitive and simple, although you can change a tube on the Lefty with the wheel on which is a novel experience and makes your first trailside repair a bit less rubbish.

There is a good range of models and specs available and as always Cannondale deliver great value for money.

Cannondale Topstone gets a Lefty — and a motor

The bike is well thought out and nothing on it screams of corner cutting to meet a budget. Overall, I think this is a bike that could get mountain bikers to look again at gravel bikes and roadies to remember that bikes are first and foremost for having fun.Cannondale has reimagined the Topstone as a full-suspension gravel bike with an all-new Lefty Oliver fork with 30mm of travel, and b wheels.

You may remember the original Lefty Oliver from the radical Cannondale Slate gravel bike. US prices are to be confirmed. Cannondale has also launched the Topstone Carbon Neo at the same time.

cannondale lefty

The electric gravel bike comes in two guises: one with the Lefty Oliver fork and b wheels, one with a conventional rigid fork and c wheels. That means you get a lightweight around 1,g carbon frame with the unique Kingpin back-end. The Kingpin suspension offers 30mm of travel, with around 25 per cent of that 7.

The leaf-spring design is proportional to the size of the bike, with the thinnest part of the seat tube increasing from 16mm-wide on a small frame to 28mm on an extra-large. Cannondale says the tube cross-sections and laminate design also differ according to the size of the frame, with the aim of providing the same level of stiffness across the board, whatever size the rider. Most significantly, that means 55mm of fork offset the Cannondale Synapse endurance bike uses a 45mm offset.

Cannondale claims this keeps the steering light and agile, even with big volume tyres, while adding stability in the rough, and the added benefit of reducing the chance of toe-overlap where the rear of the front tyre hits your foot when turning tightly. The Topstone platform is compatible with both b and c wheel sizesbut the new Lefty-equipped models come with b wheels out of the box unlike the standard Carbon models that stick to the larger c standard.

Going with s on the Lefty models seems like the smart thing to do. Other frame features include a removable mudguard fender bridge on the rear stays, the ability to add an internally-routed That said. Both forks have the same alloy lower leg assembly and stub axle. The reshaped single-crown allows for 47mm tyres with b wheels or 45mm with c and offers 30mm of travel to match the Kingpin rear suspension.

Cannondale says the Oliver Lefty retains the same high-levels of lateral and fore-and-aft stiffness as the mountain bike fork, which has a reputation for stiffness, especially in its shorter travel iterations.

The rebound adjustment is isolated from compression and they claim the new Oliver offers 60 per cent more rebound range than the original Oliver from the Slate. That said, experience shows that, with the fork being single-sided, you rarely need to remove the wheel for switching tyres or puncture repairs.

We have currently paused our bike testing schedule due to the coronavirus crisisbut I have the flagship Topstone Carbon Lefty 1 here and ready to ride, so will report back as soon as I can. It tips the scales at bang on 10kg in a large. The only thing I would have liked to see with the Lefty 1 would have been the inclusion of a dropper post the frame is designed with internally-routed dropper compatibility.

Cannondale Topstone Carbon Lefty 3 2021 - First rides!

Alongside the Topstone Lefty comes the Topstone Neo electric gravel bike, which is available in two configurations: a c version with a rigid carbon fork, and a b version with the new Lefty Oliver. Whereas the SuperSix EVO Neo uses the ebikemotion hub motor, with its smaller battery and emphasis on low weight the top-spec bike weighs just That should give plenty of potential for both power and range over lighter assisted options.

Fork aside, the Topstone Lefty comes across more as an evolution of the Synapse Neowhich if Cannondale was being completely honest was much more of an e-gravel bike than its endurance moniker would suggest. The frame design follows similar lines as the standard Topstone, with Kingpin suspension at the rear and either the regular carbon fork or a Lefty Oliver providing an additional 30mm of travel up front.

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