Author Topic: Seat / Tail section length  (Read 12963 times)

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Offline Dakin Engineering

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Re: Seat / Tail section length
« Reply #15 on: February 27, 2007, 06:16:09 PM »
Hmmm, no answer from Drew as yet, so I sent a message to Denis.
Now we got a Race! Wonder who will answer first?
Let's see if BUB can set a fire under the AMA....

Sam
Turbo Sportsters since '97

Offline JackD

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Re: Seat / Tail section length
« Reply #16 on: February 27, 2007, 06:30:18 PM »
Hmmm, no answer from Drew as yet, so I sent a message to Denis.
Now we got a Race! Wonder who will answer first?
Let's see if BUB can set a fire under the AMA....

Sam

One serves at the pleasure of the other.
"I would rather lose going fast enough to win than win going slow enough to lose."
"That horrible smell is dirty feet being held to the fire"

Offline Dakin Engineering

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Re: Seat / Tail section length
« Reply #17 on: March 08, 2007, 04:58:58 PM »
And the winner is Drew and the AMA!

Drew's reponse;

(snip)
In regards to your question "...seat position cannot be above the rear tire" may I ask what rule you are referring to,
and where you found it.
 
The new (2007) AMA supplemental rulebook should be online within a week.
 
I believe that in regards to a special construction machine, the seat area (farthest to the rear) must not be above
the appex of the tire, or not above a line drawn vertically upward through the rear axle.
 
I hope this helps, and please write back if you have further questions.
My actual job for the BUB Motorcycle Speed Trials is measuring the engines, but I will try and help where I can.
 
Lastly, as I stated earlier, my plate is very full with my normal business so please understand when I say that
I'll get back with you as soon as possible.

(endsnip)

Whew! Back to bodywork,
Sam
 
Turbo Sportsters since '97

Offline JackD

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Re: Seat / Tail section length
« Reply #18 on: March 08, 2007, 05:34:33 PM »
"Quantity is our most important product."
"I would rather lose going fast enough to win than win going slow enough to lose."
"That horrible smell is dirty feet being held to the fire"

Offline joea

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Re: Seat / Tail section length
« Reply #19 on: March 08, 2007, 08:11:58 PM »
so seat position cannot be above top of tire......??

wow, dictation snuffs innovation, and makes a mockery
of special construction..........

oh well these records/rules are only about 3 years old anyhow.......

Offline JackD

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Re: Seat / Tail section length
« Reply #20 on: March 08, 2007, 08:26:08 PM »
The measure the motor person with no LSR experience is now guessing at the rules.
It is a shame to put what otherwise might be a nice person in that position.
I think I see a pattern.
"It is like the blind leading the deaf."
"I would rather lose going fast enough to win than win going slow enough to lose."
"That horrible smell is dirty feet being held to the fire"

Offline Stainless1

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Re: Seat / Tail section length
« Reply #21 on: March 09, 2007, 08:09:22 AM »
Did I read that right?  The seat must be lower than the tire and ahead of the rear axle....I guess if you put it there, you wouldn't need SSS keeping the TP loaded....or a rear fender!
Maybe that's why "Landracing" Jon was a modified instead of altered at Bubb.
Stainless
Red Hat 228.039, 2001, 65ci, Bockscar Lakester #1000 with a little N2O

Offline Seldom Seen Slim

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Re: Seat / Tail section length
« Reply #22 on: March 09, 2007, 09:45:43 AM »
"the seat area (farthest to the rear) must not be above
the appex of the tire, or not above a line drawn vertically upward through the rear axle."

That quote is from Drew's clipped response.  The way I read is is that the seat setback is what's being discussed, not the seat altitude.

Correct me if I'm wrong, but the responses I've read after Drew's comment was made seem to be misinterpreting what he tried to say.  Other rules/other sanctioning bodies talk about having the seat LOWER than the top of the tire -- this talks bout having the seat behind the vertical centerline of the tire.
Jon E. Wennerberg
 a/k/a Seldom Seen Slim
 Skandia, Michigan
 (that's way up north)
2 Club member x2
Owner of landracing.com

Offline JackD

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Re: Seat / Tail section length
« Reply #23 on: March 09, 2007, 10:07:48 AM »
The answer is just dripping with clarity.
Remember, all modifications are based on the Production Chopper.
Soon enough the standard UJM will be outlawed and we can get back to out Merican roots.
"I would rather lose going fast enough to win than win going slow enough to lose."
"That horrible smell is dirty feet being held to the fire"

Offline Stan Back

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Re: Seat / Tail section length
« Reply #24 on: March 09, 2007, 12:16:17 PM »
God, this is getting tiresome for some of my four-wheeled friends (not me!).

Some suggested solutions . . .

1.  Run your bike for time only.

or . . .

2.  And I think JD came up with this years ago --  every bike is issued a number (done!) and their top speed is a record (for Bike 123-B, for instance).  Whenever you go faster -- you've got a new record!
Past (Only) Member of the San Berdoo Roadsters -- "California's Most-Exclusive Roadster Club" -- 19 Years of Bonneville and/or El Mirage Street Roadster Records

Offline Stainless1

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Re: Seat / Tail section length
« Reply #25 on: March 09, 2007, 04:44:39 PM »
If you get tired of looking at bike rule stuff, go read roadsters or vintage and try to get something out of those rules....at least the bike rules are based on protecting someones friend and his soft record....did I write that down or just think it out loud???
Stainless
Red Hat 228.039, 2001, 65ci, Bockscar Lakester #1000 with a little N2O