The Planet X Maratona blends High Modulus carbon fibre with precisely engineered frame layup to create a bike that offers day-long riding comfort , pedalling efficiency and the potential for effortless hill climbing.
Our Sportive geometry uses longer chainstays to enhance high-speed stability, making the Maratona a predictable descender on fast alpine passes. We've selected a mid-length headtube that provides a more comfortable riding position but doesn't stray into sit-up-and-beg territory, flip the stem if you want the armchair comfort option!
Our lightest ever Endurance bike, the Maratona is ready to carry you to your Sportive goals.
|A||Head Angle (degrees)||72.5||72.5||72.5||73.0||73.0||73.0|
|B||Head Tube (mm)||95||95||120||155||180||210|
|C||Top Tube C-C Effective(mm)||515||525||540||550||565||590|
|D||Seat Tube Angle (degrees)||74.5||74.5||74.0||73.5||73.0||73.0|
|E||Seat Tube C-T (mm)||450||480||510||540||570||600|
|G||BB Drop (mm)||72.5||72.5||70.0||70.0||67.5||67.5|
|I||Stack (mm, inc spacers||530||531||552||587||608||637|
|K||Front Centre (mm)||576||581||597||611||597||611|
|L||Fork Length (mm)||371||371||371||371||371||371|
|Rider Height||Suggested Frame Size|
|5′0″ to 5′3″ (152cm-160cm)||45cm|
|5′2″ to 5′4″ (158cm-163cm)||48cm|
|5′3″ to 5′7″ (160cm-170cm)||51cm|
|5′6″ to 5′10″ (167cm-178cm)||54cm|
|5′9″ to 6′1″ (175cm- 185cm)||57cm|
|6′0″ to 6′3″ (183cm- 190cm)||60cm|
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 and keeping the seat lower. 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.
|Frame Material||Mitsubishi HM/ IM blend|
|Frame Weight, Approx, (med) (g)||995|
|Wheel Axles (mm)||100/130 QR|
|Seatpost Size (mm)||31.6|
|Seat Clamp Size (mm)||34.9|
|Front Mech Type||Bottom Pull|
|Front Mech Clamp Size (mm)||34.9|
|Bottle Cage Bosses||2|
|Bottom Bracket||BSA 68mm|
|Headset Type||Tapered INT|
|Headset Model||FSA C-40|
|Fork Travel (mm)||NA|