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Author Topic: Use of Plywood  (Read 21188 times)

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Offline Koncretekid

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Use of Plywood
« on: March 02, 2011, 08:05:06 AM »
Is there any prohibition on the use of plywood for seat base and chest rest on a motorcycle?  I can find no mention of it in the rulebooks, but there's always the old "it's just common sense that you can't do that" rule, and sometimes we don't all have the same common sense.
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Offline Rex Schimmer

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Re: Use of Plywood
« Reply #1 on: March 02, 2011, 08:43:49 AM »
Just tell them that your seat base is a "all natural based cellulose cross grain composite" i.e. plywood. I am sure that if you secure the seat to the bike well and then give it some sort of covering, don't want splinters in your privates! there would not be a problem. Just my opinion, best to check with SCTA first.

Like your build.

Rex
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Offline Seldom Seen Slim

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Re: Use of Plywood
« Reply #2 on: March 02, 2011, 09:04:27 AM »
Back in '02 or so I ran my bike with no bodywork - and was told that I had to have some kind of seat (rather than me sitting on the frame rails up top).  I made a seat out of plywood and had no issues, other than maybe a smile or two, getting it passed.
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Offline bearingburner

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Re: Use of Plywood
« Reply #3 on: March 02, 2011, 11:21:33 AM »
Watch out for splinters
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Offline Koncretekid

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Re: Use of Plywood
« Reply #4 on: March 02, 2011, 11:28:52 AM »
Jon,
It's interesting what you said about not having any seat and being required to have one.  The trouble with my lay-down riding position on my bike is that it is kind of like a cheap hotel, i.e., no ballroom!  I considered just using some of that neopreme pipe insulation on the the tubes and calling that my seat.  I guess they wouldn't have approved that either. I almost think an old bicycle seat would be more comfortable.
Tom
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Offline Jonny Hotnuts

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Re: Use of Plywood
« Reply #5 on: March 02, 2011, 11:29:30 AM »
I am not going to mention names (initials are KL) but I remember seeing a brown satchel and a phone book used as a seat.

~JH
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Offline octane

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Re: Use of Plywood
« Reply #6 on: March 02, 2011, 12:33:29 PM »
Quote from: Koncretekid on March 02, 2011, 08:05:06 AM
Is there any prohibition on the use of plywood for seat base and chest rest on a motorcycle?
I seriously doubt it.

The entire bodywork on Ed's fabulous bike is plywood:





He runs at BUB.
SCTA could be different ...dunno.

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HotRodV8

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Re: Use of Plywood
« Reply #7 on: March 02, 2011, 12:37:18 PM »
Food for thought. . .
Whatever material you decide on for a seat, consider a narrow lower and upper section which you wear. You can put it on the front of your leathers and Velcro it around the back. I never saw a no-no about that in the rule book.

You wear your helmet, rather than bolt it to the bike, and slide up-into it, right?

"Innovation is encouraged."  -- SCTA

Bill
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Offline hotrod

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Re: Use of Plywood
« Reply #8 on: March 02, 2011, 12:40:39 PM »
If anyone were to give you grief, you could make a strong case for its use as a structural material by telling them about plywood use in aircraft like the WWII mosquito built by the British, and WWII PT boats.

It is a high strength natural composite that compares very well with light weight metals.
It has high stiffness and light weight. A top coat of fiberglass or carbon fiber using it as the core material is a very effective structural material if properly bonded to mounting points to distribute those concentrated loads.

Larry
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Offline dw230

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Re: Use of Plywood
« Reply #9 on: March 02, 2011, 01:07:37 PM »
I would claim 'carbon credits'

"Innovation is encouraged."  -- SCTA, gotta finish the complete sentence:

"Innovation is encouraged, within the rules"  -- SCTA, page 50, 2011 rulebook.

YMMV

DW
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Offline rambler jack

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Re: Use of Plywood
« Reply #10 on: March 02, 2011, 02:51:14 PM »
Spruce Goose :-D
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Offline fastman614

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Re: Use of Plywood
« Reply #11 on: March 12, 2011, 09:15:51 PM »
I was head millwright toward the end of my 25 year stint as a maintenance technician in a plywood manufacturing plant.... the information that trickled down to us as to "unconventional" uses of plywood and laminated veneer products was, at times, amzing..... I really do not see plywood as an inferior substitute for the plastics that so many seats are now made of... and the several interesting items thaty I made over the years for hotrods and whatnot using sheets of veneer as the substrates and then fiberglass resin and cloth or mat as the "glue and filler".... I would say that you could have some fun with it

But like several people say...."watch out for slivers!"    :-D
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DocBeech

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Re: Use of Plywood
« Reply #12 on: March 18, 2011, 06:39:05 PM »
He should go with oak, just for a touch of class :P
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Offline fastman614

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Re: Use of Plywood
« Reply #13 on: March 18, 2011, 10:33:24 PM »
Quote from: DocBeech on March 18, 2011, 06:39:05 PM
He should go with oak, just for a touch of class :P

Oh yes, OAK!.... Definitely..... straight from "Live Oak Country"..... or oak looking Arborite.....
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Offline Tman

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Re: Use of Plywood
« Reply #14 on: March 18, 2011, 10:43:31 PM »
Quote from: fastman614 on March 12, 2011, 09:15:51 PM
I was head millwright toward the end of my 25 year stint as a maintenance technician in a plywood manufacturing plant.... the information that trickled down to us as to "unconventional" uses of plywood and laminated veneer products was, at times, amzing..... I really do not see plywood as an inferior substitute for the plastics that so many seats are now made of... and the several interesting items thaty I made over the years for hotrods and whatnot using sheets of veneer as the substrates and then fiberglass resin and cloth or mat as the "glue and filler".... I would say that you could have some fun with it

But like several people say...."watch out for slivers!"    :-D

Have you seen the all wood Supercar being built? I will see if I got a link.

Here. http://www.joeharmondesign.com/
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