Two Clicks Out 12: Shredding A Rear Tire
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- Опубликовано: 16 окт 2024
- www.onthethrott...
In this episode of Two Clicks Out, Dave Moss continues with a WERA expert racer, Aaron Ascher #312, at the Las Vegas Classic course. Earlier they made changes that solved some front end problems, but then Aaron proceeded to destroy a fresh rear tire in 10 laps. What to do now?
Binge watching Dave, so much to learn and I done even race. I just enjoy the process and fault finding to a solution.
Yes it is and it is a UK Dunlop DOT race tire that can run in either direction that year!
Dave Moss
Host
@gggromay Thanks for the suggestion. The next shooting sessions for Two Clicks Out will be much more in depth. He was very happy with the changes made to his bike. I thought we interviewed him, but when I went to edit the piece, I didn't see it. Thanks for the feedback.
Chris Matye
Shooting/Editing- OTT
Good example of how important it is to 'read' the tyre in order to go in the right direction with suspension. Know the cold pressure and set it before anything else. Check pressure when under the warmers and again as soon as you come in after every session. Maintaining the hot pressure gives a known constant when 'reading' your tyre...Mark, Dunlop Motorsport.
@brett6604 This is Dave's response above, to someone that made the same observation.
"good observation. Most race tires are no longer directional, but DOT race tires have to have all the markings of a stock tire including the rotational arrow. Getting the most use out of a race tire (slick or DOT) is therefore done by "flipping" the tire. Helps keep the costs down a little for our biggest expense - tires!"
Dave Moss
@leecravenaz good observation. Most race tires are no longer directional, but DOT race tires have to have all the markings of a stock tire including the rotational arrow. Getting the most use out of a race tire (slick or DOT) is therefore done by "flipping" the tire. Helps keep the costs down a little for our biggest expense - tires!
Dave Moss
Host
Yea I saw the arrow wrong way round as I'm a retired bike mech. Are some tyres ok one
backwards then Dave?
Aren't those the Dunlop GP D211 tires, and aren't they known to disintegrate when flipped and ran backwards?
January is the scheduled month for visiting NZ. I have not started planning dates and locations yet, so would you like to get that started with me and recommend a 2-3 week trip itinerary for track days and races? Obviously, I need to be able to cover expenses for the trip, so I need to figure out how to do that.
Dave i love watching you analyze these Tyre problems. wish i had access to all your free info when i was racing. boy i hope these guys fully appreciate your expertise because with out it ? - it would hospital food all the way !! ,lol !
@OnTheThrottleTV
unbelaveabel amount of info...
thanx Dave and every body on OTThrottle
@TheRaulr151 watch for the schedule launched Jan 25th. Trying to get there for a few track days. Who do you ride with? Do they have a suspension tuner?
Dave Moss
Host
Aaron is an awesome racer. Dave, will you be out at the final WSMC round in November? I raced my 1st race in September in New Racer Race and placed 6th. Ran 33's and 34's. My goal is to get into the 20's. I'd like to seek your services on how to better setup my machine to meet the needs at WSIR. Thanks.
yes I do indeed schedule private sessions outside of the race track.
I am in Northern California in the Bay Area just south of San Fransicso.
Dave Moss
Host
Such knowledgeable & experienced men, time to set up ‘Dave’s Race Winning School’
Call me crazy but did anyone pick up the fact that the arrow is pointing the wrong direction on the rear tire at 4:13 ? Maybe that's why the tire is shredded????? Who mounted your tires bro???
Hi Dave. In a previous episode you said that when looking at the wear of the REAR tire the right side is for gas, and the left for survival. What does this mean exactly?
@OnTheThrottleTV Thanks Dave, you're the best.
@OnTheThrottleTV Oh, and by the way, awesome, interesting and very useful videos, i love watching them, thanks for posting guys!
He's obviously made adjustments to the front before those laps (as mentioned) but without adjusting the back to suit the new front settings, thats why the backs chewed up, the fronts overloading the back.
@cougz82 with these race DOT tires you can run them in either direction. This is true of many race tires, slicks or DOTs. To be race legal, all race DOT must have correct side wall information including directional arrow.
Dave Moss
Host
I'm thinking he assumed someone would be smart enough to mount their tires correctly so related all issues to suspension and correcting it.
Mr. Wizard.
Cool stuff Dave.
i like this style vid, favorite Dave Moss vid, hopefully can find more of this style. tire wear is interesting. I ran into a unknown for me. I understand theory of high and Low speed Compression. but i would think you would open up the high speed, Dial in the Low Speed( I assume its the old school, the foundation) then work on the High speed. But, honestly not sure, been out of this stuff for bit, so "High Speed" is out of my wheel house, I do understand the different inputs that are "high vs Low speed" it's not your speed, But speed definetley matters. I think of it like braking bumps,, chatter, same stuff a slow rebound can create "Packing". I may be off base??
@Dave Moss Tuning
Ok, enough comments about the tire being flipped, sheesh.
Dave, I don't know if I've seen this question brought up before, but it's been on my mind.....
Regarding preload, a ziptie is used in the front in order to measure fork travel. Are there any techniques used to monitor shock travel, or can that only be done by 'reading' the rear tire?
As always, thanks for your response.
A tape measure to set up sag is for rear preload.
THE TYRE IS ON BACKWARDS SEE 4:05
@khyoon14 in breaking a track down by design based on rotation, tracks lend themselves to right or left turns being fast, right or left turns being technical/slow requiring slow roll on. In this instance with this track, right hand turns were full throttle exits, lefts were maintenance throttle or slow roll ons.
Dave Moss
Host
Don't forget folks that most race tires event though they have an arrow on them (remember they are DOT race) are not directional. You can reverse a Pirelli or Dunlop race DOT for example.
I 'flip' mine all the time to get more longevity from the tire!
Dave Moss
Host
4:05 Im so sorry if this question souds dumb, but ts that arrow on the tire side wall pointed in the wrong direction? Does that matter?
i dont think it matters on slicks only for the tire grooves when its wet
kraziee93
Hmm, I have no idea really. Thanks for the response :)
kraziee93 those weren't slicks, they have treads towards the center
oops did not read far enough down, someone alread pointed that out. should my bike squat down on hard accel at all. Or should it be stiff and solid. it feels like it should squat a littlebut i could be wrong?
I love your videos Dave , so much to learn :)
it would be interesting to see the results of the changes, you should add a small clip at the end of your videos with the riders comments and experience.
@gtrpimp76 can look at my schedule and see if that weekend is open!
Dave, would be awesome if you wanted to come down to NZ and come to some of our training days for the Auckland motorcycle club... well can always dream :)
Maybe the tire is flipped the wrong way... Oh wait. It is.
I also noticed that at the 4:13 mark
If Dave didn't address it, it's not a problem.
I think it doesnt matter when on dry condition only when wet if backward you have hyroplane problems
Tyre is on backwards that should be part of the problem if im not mistaken.
No mention of the tire being on the wrong way round, if the tire could run any direction there would not be an arrow for the correct way to put the tire on
4:13 the rear tire is spining in wrong direction
Dave...come to Texas please !
What is a takeoff tire?
In this case a tire that has been run already and swapped out for new. He wanted him to rag on it and no need to shred a new tire.
4:05 The Arrow on the tire indicating tire Direction is Going the wrong WAY!! The tire is on Backwards, thats why its all messed up. The arrow should face the direction of rotation going forward. It is going backwards, would be perfect if he rode the track in reverse.
My battle axes did the same! Terrible tires-
@fratilescu I will be traveling a lot this year outside the US. Where, what dates, what events? Please contact me via dave(at)csrtuning(dot)com
Dave Moss
Host
Should have kept reading Knopp saw it also....
LOL ! Good eyes that man ! Defo true tho !
why does this suspension dude not show when he takes $100.00 cash from the track day guy?
Because it is about the expertise of tuning the suspension, not how much salary a person makes. And for us watching the videos, it's free. :)
like talking to a doctor :-))
Clever dude
Not exactly rocket science.
Evan Davis Give credit where its due. Start your own tuning company if its that easy...
vidurc Already do run my own tuning shop :-)
Evan Davis What do you tune? And please educate us. If you're not posting videos or bothering to share your knowledge and analysis don't sit there making back handed remarks.