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Cormac's Tech Shots From Jerez: Holeshot Devices Close Up And In The Flesh For Subscribers

By David Emmett | Mon, 10/05/2021 - 08:30


The Ducati left handlebar up close: On the top yoke, the front and rear holeshot device switches, on the handlebar, the red, yellow, and green buttons for the electronics, and a lockout lever for the 'shapeshifter' or ride height lowering device


The Ducati seen from the right: on the handlebar, the pit lane limiter at the top, the neutral engagement lever at the bottom. Holeshot device butterfly switches on the top yoke, and the electronics buttons and lockout for the shapeshifter on the left


A better view of the holeshot device butterfly switches. The F and R are self-explanatory. And the rider-facing camera is also visible on the top of the dash.


Maverick Viñales' Yamaha M1 is fired up. Note the torque sensor on the output shaft - used during practice and testing to work on torque maps and engine braking settings


Sensors galore on the front wheel of the Aprilia. An accelerometer on the brake caliper mount, two speed sensors, and a stroke sensor for the suspension. The Brembo calipers are the new type with extra cooling fins. Note the air blower blowing air into the intake. That helps to cool the electronics mounted under the tank cover


Elegant exhausts with a carbon cover, and an aluminum swingarm. The Suzuki GSX-RR's beauty lies in its simplicity


Like many factories, KTM uses a little trolley for the rear wheel, to allow the bike to be maneuvered more easily (and hidden in the garage more quickly). Carbon swingarm, well-used tire. And the bright red cylinder is the load cell for the quickshifter.


Fabio Quartararo's Yamaha - 3565 is the idle speed. On the right handlebar, the pit lane limiter and engine stop button, as well as the neutral selector lever under the bar. Purple anodised ally head race cover is a 90s throwback


At the back of the Ducati, an accelerometer on the end of the swingarm, 2 speed sensors, and a single brake line to the caliper. No thumb brake nonsense here


The closest most people get to seeing a bike uncovered. Iker Lecuona's KTM RC16 up on stands with no wheels


Aprilia using a carbon swingarm now too, after years of experimenting to get it right


Note the little fuel tank used to warm up the bike. Much easier to handle than the full-sized 22 liter unit used on track.


Another view of the warm up fuel tank. Also clearly visible a large weld at the rear of the swingarm, indicating this is the aluminum version.


The Aprilia handlebar. Clutch lever, and inside, the smaller holeshot/shapeshifter lever, lockwired to prevent it going out of adjustment


A better view, with the front and rear holeshot levers at the front and rear of the clip on. 'Playstation' electronics controller marked with functions: EB = engine brake, TC = traction control


And exclusive for MotoMatters.com subscribers, Aprilia's holeshot device exposed. Two more close up photos of the device are available to site supporters

 


If you'd like to have very high-resolution (4K) versions of the fantastic photos which appear on the site, you can become a site supporter and take out a subscription. A subscription will also give you access to the many in-depth and exclusive articles we produce for MotoMatters.com site supporters. The more readers who join our growing band of site supporters, the better we can make MotoMatters.com, and the more readers will get out of the website. You can find out more about subscribing to MotoMatters.com here. You can also see these photos and all our subscriber material on our Patreon page.

If you would like to buy a copy of one of these photos, you can email Cormac Ryan Meenan

If you'd like to see more of Cormac's work, you can follow him on Twitter or Instagram, or check out his website, cormacgp.com.

PhotoPage
Thomas Morsellino
MotoGP
Jerez, Spain
Aprilia
Ducati
KTM
Suzuki
Yamaha
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To read the rest of this article, you need to sign up to become a MotoMatters.com site supporter by taking out a subscription. You can find out more about subscribing to MotoMatters.com here. If you are already a subscriber, log in to read the full text.


This is part of a regular series of unique insights into the world of motorcycle racing, exclusive for MotoMatters.com site supporters. The series includes interviews, background information, in-depth analysis, and opinion, and is available to everyone supporting the site by taking out a subscription.

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Comments

daddyrat

1 year 9 months ago

Permalink

oooohhhhh

aaahhhhh, so much to see. I didn't know mclaren was supplying sensors! And the carbon weave up close looks so sexy :-)

 

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Steve Reddy

Profile picture for user Apical
Australia
DUCATI

996 Strada

Apical

1 year 9 months ago

Permalink

Wow shiny things

There is a lot in the cockpit these days. Once it was just a tacho. Then tacho & water temp. Space rockets indeed.

Ducati still have more high technology gadgets than Batman!

No simple linkages with dog bones I could make either. Changeable rear ride height would have definite application on street bikes for short people.

No thumb rear brake for Aleix on the RS-GP. What is the bizzo at the bottom of the Aprilia's radiator? Protection? Temp or flowrate sensor? Transponder? The holeshot device/rear ride height gadget on the Prilla looks complicated. Many little components, fiddly bits & little screws. Franky Morbidelli may not be the only racer to have a problem with this tech. What about those square holes?

McLaren, well spotted daddyrat!

Simple elegant way to secure the wheel covers or disc covers on the front of the RS-GP.

Aluminium swingarms are starting to look old.

 

 

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larryt4114

1 year 9 months ago

Permalink

In reply to Wow shiny things by Apical

Changeable rear ride height would have definite application

Hate to say it, but the first to do that is Harley on their new ADV bike.

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D999

1 year 9 months ago

Permalink

Beautiful.

Beautiful.

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Tanker Man

1 year 9 months ago

Permalink

Tread

That last picture has tread on the Aprilia's rear tire. Is that an intermediate tire? Didn't know those are still available. 

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stumo

1 year 9 months ago

Permalink

In reply to Tread by Tanker Man

tyre

It's the tyres used when the bikes are being transported.

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The old site was great!

TRIUMPH

Not happy - why have this area so big on the left here? Then the comment area stacked so thin on the right? It was so much better before. NOT HAPPY. And DISCORD?! Not sticking around.

Motoshrink

1 year 9 months ago

Permalink

Wet wknd coming

Wet weather again for 2021 Le Mans GP all weekend. 80 to 85% chance of rain.

Great 12min edit of the wet 2020 race. Miller in the wet is strong. Duc in France, strong. Odds there? Strong.

https://m.youtube.com/watch?v=q_4NOEe77k0

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spongedaddy

1 year 9 months ago

Permalink

Dovizioso Mugello Test

Has anyone heard anything other than what GPOne is reporting?

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The old site was great!

TRIUMPH

Not happy - why have this area so big on the left here? Then the comment area stacked so thin on the right? It was so much better before. NOT HAPPY. And DISCORD?! Not sticking around.

Motoshrink

1 year 9 months ago

Permalink

In reply to Dovizioso Mugello Test by spongedaddy

Albesiano intvw? That is all

Albesiano intvw? That is all I have seen too. 

But of a rain out, much less to it than hoped. The bike was well fitted to his liking, tried a few basic parts like bodywork options. Hoping for better weather for Day 2. Talks started of a 3rd Test, possibly Misano. 

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db

1 year 9 months ago

Permalink

In reply to Dovizioso Mugello Test by spongedaddy

I saw on his Instagram it was

I saw on his Instagram it was wet one - that's about it. What a shame for both parties. 

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spongedaddy

1 year 9 months ago

Permalink

Interesting comments by

Interesting comments by Dovizioso on his methodical approach in life:

https://www.gpone.com/en/2021/05/12/motogp/dovizioso-and-the-future-wil…

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