Niki Kovács caught the factory KTM RC16 without its fairing. The scrutineering sticker on the frame shows this is Jack Miller's number 1 bike.
Above the clutch, the rear cylinder bank is clearly visible. In front of the clutch, the 8-point star drive for the external starter.
Note the way that the left exhaust downpipe snakes around the right one, and the balance pipe at the front.
Just below and behind the blue radiator connector hose is the 3D printed connector block, which connects sensors and controllers to the ECU.
Strapped to the outside of the connector block is the receiver for the McLaren tire pressure monitoring system. Above the blue radiator connector is the receiver for the official spec TPMS, which will, at some point in the future, be used to enforce the minimum tire pressures.
Here, on the wheels for Alex Rins' LCR Honda, you can see the two tire valves, at the 4pm and 10pm positions. Each tire valve is fitted to a tire pressure monitoring system.
The advantage of valves is it allows the teams to 'wash' the tires with dessicated air. The tires are filled with dessicated air, then put on tire warmers to bring them up to temperature, then the air that was in the tires flushed out through one valve with dessicated air pumped in through the other valve.
Teams use dessicated air because it's much cheaper than carrying nitrogen around, and almost equally effective. Flushing the tires also removes any moisture which may have leached from the tire itself as it was warmed up.
This is the black carbon clutch Honda tried during winter testing, but which they abandoned at Portimão.
The benefit of a carbon clutch is it's lighter. But carbon clutches tend to be a little grabbier, making it more difficult to control and release smoothly.
The square tail wing which KTM tested at Jerez and used in Le Mans is surprisingly effective. Look closely at the top of the wing, and you will see a small gurney flap. This provides a significant increase in downforce.
The influence of Red Bull Advanced Technologies from F1 is growing in KTM. This is the fairing raced by Dani Pedrosa at Jerez on Brad Binder's KTM RC16 at the Monday test after Jerez.
The interesting part is the bottom of the fairing. There is what looks like a scoop at the front of the fairing, directing air underneath the belly pan. The edges of the belly pan have been sculpted to manage the airflow along the bottom of the bike, optimizing the flow directed in by the scoop.
KTM also had a more extreme version of the new fairing. Here, the side pods have been turned into an aerofoil which completely surrounds the edge of the fairing. This will accelerate the air along the sides of the fairing, perhaps reducing drag.
Yamaha were working on aerodynamics as well, but in a much more modest way. The Japanese factory had brought a revised version of the new front wing used at the Sepang test. The response from both Fabio Quartararo and Franco Morbidelli was unenthusiastic. It made too little difference.
Yamaha had also brought a much longer exhaust for the riders to test. Their response here was also less than enthusiastic. At Le Mans, the Yamaha M1s had the old exhaust fitted. This version did not make enough of a difference.
Ducati had very little to test. One item which appeared on the Pramac machines was this scoop underneath the fairing. This is likely being used to cool the exhausts. The Ducatis are packaged so tightly beneath the fairing that they have a tendency to catch fire.
In reply to Sounds like F1 tech (the sort I can appreciate in MGP) by Merlin
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