Quick Tire Change - Webb

Berm
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Berm
Webb was able to get that rear tire changed in time to only be 1 lap down! I thought timing and scoring had screwed up.

From reading his lap times, it seems it took just 60 seconds for the entire pit-stop!
By comparison, it took over a minute and a half for tomac to have his brake line cut.

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TriRacer27 2/12/2017 11:35am
2/12/2017 11:35am
yeah, that was ridiculous. It's like Kawi was debating whether or not to waste an entire brake line, and with how expensive they are and all. Should've taken no more than 30 seconds.
kzizok
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kzizok 2/12/2017 11:36am
2/12/2017 11:36am
In all fairness, there was no guesswork about what could be the problem with a flat. The whole process is a known issue and it should have been more efficient than diagnosing and then treating an unknown.



mark_swart
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mark_swart 2/12/2017 11:54am
2/12/2017 11:54am
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there to stop the tire!
benchracermx 2/12/2017 11:57am
2/12/2017 11:57am
mark_swart wrote:
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there...
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there to stop the tire!
Agree...first mechanic looked as if he messed about a bit

The Shop

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scott_nz 2/12/2017 11:58am
2/12/2017 11:58am
mark_swart wrote:
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there...
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there to stop the tire!
i agree, the tyre change looked pretty slow to me,

and the kawi mechanics did take way to long as well , thought the bike would have gone onto the stand straight away so they could see where the problem was,
tek14
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tek14 2/12/2017 11:58am
2/12/2017 11:58am
Tomac did ride around finishline and lost one lap because of that?
mx836
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mx836 2/12/2017 12:00pm
2/12/2017 12:00pm
Eli should have been in and out in 15 seconds. Could have salvaged at least a few more points.
johnnypotato123 2/12/2017 12:14pm
2/12/2017 12:14pm
TriRacer27 wrote:
yeah, that was ridiculous. It's like Kawi was debating whether or not to waste an entire brake line, and with how expensive they are and all...
yeah, that was ridiculous. It's like Kawi was debating whether or not to waste an entire brake line, and with how expensive they are and all. Should've taken no more than 30 seconds.
Looked more like they were trying to figure out how to get him out there with a front brake more than anything.
Fourth_Floor
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Fourth_Floor 2/12/2017 12:16pm
2/12/2017 12:16pm
You guys are on dope. I would like to see any one of you ride a Supercross track at those speeds with no front brake. Had the pit stop taken 15 seconds then he probably would have felt pressured to push and really end up screwing himself up.
jonesaustin
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jonesaustin 2/12/2017 12:30pm
2/12/2017 12:30pm
I wish they all had duplicate bikes on standby. Also, we need to get a new AMA rule allowing racers to drop their worst race. I guess to make that work, all racers would have to have their worst race dropped from the points, but would be nice to keep the points chase cemented in ability, endurance, and race IQ than mechanical issues or crashes.
1HRCrider
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1HRCrider 2/12/2017 8:32pm
2/12/2017 8:32pm
Agree, worst pit stop to switch out a wheel I have ever seen, especially for a top factory level team. No reason why mechanics do not have spare front/rear wheels on hand along with all the necessary electric tools to not change that wheel in about 15 to 20 seconds. If I was the team Manager these boys would have this shit down, Nascar style.
Xeno
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Xeno 2/12/2017 8:52pm
2/12/2017 8:52pm Edited Date/Time 2/12/2017 8:53pm
We perform scheduled wheel changes during SCORE Baja races. A perfect rear wheel change takes 30 to 40 seconds. And that's at the hands of experienced pit guys with lots of practice and the proper tools at their fingertips.
I've never seen a 15-20 second wheel change- even during shop training sessions. I actually set up a magnetic 32mm socket on a cordless impact gun to expedite the axle nut removal and installation, but I still couldn't break the 30 second mark.
The front wheel takes even longer because you have to align the axle with the fork lugs.

My only suggestion for the Yamaha guys is to have an impact gun on the pit cart. I noticed the time it took the mechanic to use a wrench to remove the axle nut.
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FGR01 2/12/2017 8:56pm
2/12/2017 8:56pm
...and Webb taking his goggles off. I was like WTF are you doing ????
USMCMXer
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USMCMXer 2/12/2017 9:07pm
2/12/2017 9:07pm
mark_swart wrote:
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there...
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there to stop the tire!
This!
Skidaddle
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Skidaddle 2/12/2017 9:52pm
2/12/2017 9:52pm
mark_swart wrote:
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there...
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there to stop the tire!
Yah, I was thinking WTF? Just hit the kill switch.
1HRCrider
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1HRCrider 2/12/2017 10:06pm
2/12/2017 10:06pm
Xeno wrote:
We perform scheduled wheel changes during SCORE Baja races. A perfect rear wheel change takes 30 to 40 seconds. And that's at the hands of experienced...
We perform scheduled wheel changes during SCORE Baja races. A perfect rear wheel change takes 30 to 40 seconds. And that's at the hands of experienced pit guys with lots of practice and the proper tools at their fingertips.
I've never seen a 15-20 second wheel change- even during shop training sessions. I actually set up a magnetic 32mm socket on a cordless impact gun to expedite the axle nut removal and installation, but I still couldn't break the 30 second mark.
The front wheel takes even longer because you have to align the axle with the fork lugs.

My only suggestion for the Yamaha guys is to have an impact gun on the pit cart. I noticed the time it took the mechanic to use a wrench to remove the axle nut.
Good info, was kind of just using the roadrace pit stop strategy at Daytona, where they do both wheels and fill tank. I can see front being a little more difficult. But to me, they really looked unorganized for being top level team.
swedishfishmx 2/12/2017 10:19pm
2/12/2017 10:19pm
To be fair, flats in supercross are rare. I can't imagine that's something that gets practiced offen. Changing a wheel in the garage or shop is one thing, but doing so in a race with; that's a lot of pressure.
Johnny Depp
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Johnny Depp 2/12/2017 10:27pm
2/12/2017 10:27pm
Does anyone run mouse or Tubliss in SX?

I love the pit stop drama, I wish there was a mandatory stop for all riders to change a rear tire just to make it more interesting.

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526
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526 2/13/2017 5:22am
2/13/2017 5:22am
Is the rear axle nut safety wired? that may have been the hang up as it seem to take forever to get the axle nut off.
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Bearuno 2/13/2017 5:57am
2/13/2017 5:57am
Old bastards like me can remember PE Suzuki's that took about 20 seconds to remove the rear wheel when set up correctly........ I'm not kidding.

The drum brake backing plate and shoes, and the sprocket and chain stayed in situ (on the swingarm), and the rest of the wheel just popped out.

With that and Sun Rim Pins, and one side of the rim machined down, some guns could change a tyre in under 3 minutes, if I recall correctly.
Forty
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Forty 2/13/2017 7:48am
2/13/2017 7:48am
Under a minute is not terrible. 40 seconds would be very good.

15 -20? C'mon man.

Webb put his hand on the spinning wheel, ouch, that could have been something.
Bearuno
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Bearuno 2/13/2017 8:35am
2/13/2017 8:35am
Forty wrote:
Under a minute is not terrible. 40 seconds would be very good. 15 -20? C'mon man. Webb put his hand on the spinning wheel, ouch, that...
Under a minute is not terrible. 40 seconds would be very good.

15 -20? C'mon man.

Webb put his hand on the spinning wheel, ouch, that could have been something.
Go do some research. Undo a nut, slide the axle out, catch a spacer., take wheel out. Done. As I said, chain / sprocket / brake stays on the swingarm.
mx317
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mx317 2/13/2017 8:35am
2/13/2017 8:35am
526 wrote:
Is the rear axle nut safety wired? that may have been the hang up as it seem to take forever to get the axle nut off.
no
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dmac1 2/13/2017 8:39am
2/13/2017 8:39am Edited Date/Time 2/13/2017 8:41am
mark_swart wrote:
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there...
I actually didn't think it looked all that quick, especially for Factory level mechanics. I also cringed a bit when Webb stuck his hand in there to stop the tire!
Skidaddle wrote:
Yah, I was thinking WTF? Just hit the kill switch.
Agree about Webb slowing the tire with his hand. Why didn't mechanic push on the brake instead?

I also agree that you'd think they'd have an impact gun ready with right sized sockets just in case. Then again, how many tire changes do they do mid-race...

Anyone know what was actually wrong with Reed and Tomac's bikes? That whole race was crazy!
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Mr. Info 2/13/2017 8:46am
2/13/2017 8:46am
Why no moose insert?
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GuyB 2/13/2017 8:51am
2/13/2017 8:51am
Johnny Depp wrote:
Does anyone run mouse or Tubliss in SX? I love the pit stop drama, I wish there was a mandatory stop for all riders to change...
Does anyone run mouse or Tubliss in SX?

I love the pit stop drama, I wish there was a mandatory stop for all riders to change a rear tire just to make it more interesting.
In SX it's fairly uncommon to see a mousse used.

I talked with some of the Yamaha gang in the airport yesterday. There were no cuts in the tire, and they weren't doing anything out of the ordinary with tire pressures. It was a pinch flat.
ML512
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ML512 2/13/2017 8:59am
2/13/2017 8:59am
Mr. Info wrote:
Why no moose insert?
In outdoors the teams typically run them in the rear (at least) but the riders don't like the feel of them on Supercross whoops. It's a performance issue indoors.
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BobbyM 2/13/2017 9:01am
2/13/2017 9:01am
Berm wrote:
Webb was able to get that rear tire changed in time to only be 1 lap down! I thought timing and scoring had screwed up. From...
Webb was able to get that rear tire changed in time to only be 1 lap down! I thought timing and scoring had screwed up.

From reading his lap times, it seems it took just 60 seconds for the entire pit-stop!
By comparison, it took over a minute and a half for tomac to have his brake line cut.

Changing a wheel is a lot faster than changing some rubber.
Samsquanch Gingerbeard 2/13/2017 9:02am
2/13/2017 9:02am
FGR01 wrote:
...and Webb taking his goggles off. I was like WTF are you doing ????
Maybe they were fogging or he was afraid they would? Just a guess.
Forty
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Forty 2/13/2017 9:06am
2/13/2017 9:06am Edited Date/Time 2/13/2017 9:11am
Forty wrote:
Under a minute is not terrible. 40 seconds would be very good. 15 -20? C'mon man. Webb put his hand on the spinning wheel, ouch, that...
Under a minute is not terrible. 40 seconds would be very good.

15 -20? C'mon man.

Webb put his hand on the spinning wheel, ouch, that could have been something.
Bearuno wrote:
Go do some research. Undo a nut, slide the axle out, catch a spacer., take wheel out. Done. As I said, chain / sprocket / brake...
Go do some research. Undo a nut, slide the axle out, catch a spacer., take wheel out. Done. As I said, chain / sprocket / brake stays on the swingarm.
looks simple enough on paper.

I typed in to "research" it and HRC road racing popped up and they had 5 techs waiting for the bike to come in for a wheel change and from wheel off the ground to wheel on the ground it took 31 seconds.

Here is what they did.....they undid a nut, slid the axle out, caught a spacer, took the wheel out....BUT ! Then they had to put the fresh wheel in, replace the spacer, slide in the axle, redo the nut!

31 seconds.



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