We're breaking the mould. Literally. Blowing it to bits in the way that only Planet X can. We're bringing you true pro-level carbon frame construction, available without having to know someone on the inside, at a super accessible price, thanks to our new partnership with Sarto Antonio of Italy, makers of what we consider to be the finest frames in the world.
Sarto made their name in a situation that happens a lot. Pro riders signed for a team, unhappy with their stock model bike. It's a secret of the peleton, but the truth is out there - Sarto make the frames for lots of pros, who them have them sprayed up to look like their sponsors bikes.
Why do the pro's beat a path to Sarto's door? Because of the way that they can truly CUSTOM build a carbon frame, not just with the tube shapes to deceive the journalists, but also the geometry to allow the rider to get the position on the bike they want, the material to allow the weight to be optimised, and the layup to ensure the bike rides exactly how they want it - yeah - with that "lateral stiffness and vertical compliance" that everyone wants from a bike.
We've been working for over a year with Sarto, and our top level sponsored athletes, to get these frames, and bikes to production. We've gone through extensive sampling processes, cable guide revisions, frame tube alterations, and we're now ready to launch them, at a price that blows the rest of the industry to bits, the Planet X Mondo.
We have used our well proven and much loved Nanolight geometry to base the bikes sizing around. The Nanolight has been our best selling high performance frame to date, and we're very happy with the proportional geometry on it, and we understand how it would be desirable for a Nanolight rider to easily make a swap to a Mondo, with the extra performance gains it would give them, but with the same geometry so that contact points are familiar.
We've made a leap forward in technical innovation and kept the Italian theme going by using FSA's BB386EVO on this frame. BB386EVO is specifically designed to both optimise construction for carbon frames, and offer even more increased levels of drivetrain stiffness than previous systems. It's supported by FSA, and also has cup designs to allow 24mm Shimano standard axles to work in the frame, and also even allows you to use BB386EVO cranks in even a standard threaded bottom bracket!
To accompany this awesome frame and complete the frameset package, we've chosen Deda's Monocoque RS full carbon fork. It's one of the the highest quality forks around tested best in back to back analysis from our riders. It's incredibly light, but tracks incredibly well due to perfect material positioning. The headtube and fork are of course tapered 1.5in to 1.125in standard, and take an FSA C40 headset (Not Included).
XL frame= 920g, fork = 390g, total frameset = 1310g
|Approx. Frame Weight (g)||TBC|
|Seatpost Size (mm)||31.6|
|Seat Clamp Size (mm)||34.9|
|Front Mech Clamp Size (mm)||Braze On|
|Wheels||700C, 25mm tyres max|
|Bottle Cage Bosses||2 set on all sizes|
|A||Head Angle (°)||71.3||72||73||73||73|
|B||Head Tube Length (mm)||120||135||155||175||200|
|C||Effective Top Tube Horizontal (mm)||525||535||555||575||595|
|D||Seat Angle (°)||74||73.7||73.5||73||73|
|E||Seat Tube Length Centre to Top (mm)||490||510||530||550||580|
|F||Chainstay Length (mm)||405||405||405||405||405|
|G||BB Drop (mm)||71||70||68||67||67|
|Rider Height||Frame Size|
|5' 3'' to 5' 7''||XS|
|5' 6'' to 5' 9''||S|
|5' 9'' to 6' 0''||M|
|5' 11'' to 6' 2''||L|
|6' 1'' to 6' 4''||XL|
All frame size recommendations are approximate. A good fit will also depend on the correct choice of stem length, correct bike set-up for the rider and riding style.
Correct frame size choice can vary greatly with riders' torso length. If you have longer legs and a shorter torso, go for a slightly shorter stem. If you think you are borderline between sizes, and you have longer legs and a shorter torso, go for the smaller frame size. If you have shorter legs and a longer torso, go for the larger frame size to get the extra top tube length.
As the frame sizes increase, so does the length of the head tube. If you are inflexible or perhaps have a history of back problems, consider going for a larger frame size. This will increase the relative height of the handlebars making the position less “extreme”. The larger frame will also have a longer top tube, so you’ll need to compensate for this with a shorter stem.
I've had the honor of being able to ride and race a Planet X Mondo for the last 6 weeks, or so. I can say the ride is outstanding. I paired it with a set of Planet X Carbon Tubs for racing which helps it climb like a dream. The bike is quick, responsive, and stable at the same time. The internal cable routing gives it a very clean look. I would say it is a great bargain at this price point compared to other Italian brands I've ridden.
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