Tom's Tech Treasures: Preparing MotoGP Bikes For Sepang's Tropical Heat

Thomas Morsellino is a French freelance journalist and photographer, with keen eye for the technical details of MotoGP bikes. You may have seen some of his work on Twitter, where he runs the @Off_Bikes account. Peter Bom is a world championship winning former crew chief, with a deep and abiding knowledge of every aspect of motorcycle racing. Peter has worked with such riders as Cal Crutchlow, Danny Kent, and Stefan Bradl. After every race, MotoMatters.com will be publishing a selection of Tom's photos of MotoGP bikes, together with extensive technical explanations of the details by Peter Bom. MotoMatters.com subscribers will get access to the full resolution photos, which they can download and study in detail, and all of Peter's technical explanations of the photos. Readers who do not support the site will be limited to the 800x600 resolution photos, and an explanation of two photos.


Air cooling system on Kalex (Marc VDS), for water
Peter Bom: Moto2 engines automatically enrich the fuel mixture over 80°C in order to cool the engine. This rich mixture causes a slight loss of power and in the extremely tight Moto2 class, every detail is worth looking at. Here we see the MarcVDS team, cooling down there Moto2 engines while the bike waits in the pit box.


Air duct for front calipers (Yamaha YZR-M1)
Peter Bom: Air ducts to guide air to the brake caliper, and no covers over the carbon brake disks. Carbon brakes have a fixed temperature window in which they operate well. Too low and they don’t work (very low coefficient of friction), too high and they get damaged.


Seat adjustments on Lorenzo’s GP18 during FP1


Honda RC213V (Marc Márquez)


Under the tank of the Ducati GP17, Xavier Siméon (Tito Rabat's bike, out through injury)


Exhaust Ducati GP18 (Danilo Petrucci)


Ducati GP18, Andrea Dovizioso


Clutch lever sensor on Maverick Viñales bike


Brembo calipers


Carbon swingarm (Honda RC213V)


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