Landracing Forum

Bonneville Motorcycle Speed Trials => Bville Motorcycle Speed Trials Rules Questions => Topic started by: Strokerface on August 13, 2014, 11:17:05 PM

Title: Number plate Location on Small Bikes
Post by: Strokerface on August 13, 2014, 11:17:05 PM
Not sure how to comply with the following rule set (bolded) for our small bike.

2.K.
Motorcycle number and class identification on both sides of the motorcycle are required for each participant. Numbers shall be reserved with organizer. The number class shall be displayed within a flat, smooth, vertical surface with a minimum dimension of 7.5 in high and 10.5 in wide, with a maximum of 8.5in by 11in. Motorcycle numbers must be a minimum of 3 in high and 1 in wide. Class designation shall be a min of 1in high. Numbers/letters shall not be shaded or outlined. The surface may be on the motorcycle, or number plates may be used. Where used, number plates shall have 1in radius corners, be securely mounted, meet the dimensions and be located ahead of a vertical line through the rear axle. Numbers shall be in full view and not blocked by the rider when in the riding position.

Does "located ahead of a vertical line through the rear axle" mean the entire plate, or the center of the plate? This bike is so small that locating the plate forward of the axle makes it hidden by the rider's leg. The plate shown in the photo below is a 6x9" oval. Will be replaced with 7.5"x10.5" but we are concerned about the location. Even getting the center of the plate forward of the axle puts most of it under the rider's leg. Sorry about the crummy angle of the photo but it's all I have.

Any advice very welcome!  :cheers: Jim

(175-A-CG based on 100cc frame)
(https://lh4.googleusercontent.com/-Qhfs7te0FZU/U-wnji-20PI/AAAAAAAABXM/ZaoWb4CZxJo/w376-h501-no/0801141500.jpg)



Title: Re: Number plate Location on Small Bikes
Post by: Stainless1 on August 13, 2014, 11:25:50 PM
Jim, if you use a number plate the rear edge must be forward of the rear axle.  The numbers could be on the tail section as well.  The numbers could be located anywhere on the plate so they are readable
Title: Re: Number plate Location on Small Bikes
Post by: AHG on August 14, 2014, 02:22:30 PM
The following is a recent addendum to the AMA supplemental rules.

2. K. NUMBER/CLASS IDENTIFICATION

Motorcycle number and class identification on both sides of the

motorcycle are required for each participant. Numbers shall be

reserved with organizer. The number class shall be displayed

within a reasonably flat, smooth, vertical surface
with a minimum dimension

of 7.5 in high and 10.5 in wide, with a maximum of 8.5in by 11in.

Motorcycle numbers must be a minimum of 3 in high and 1 in

wide. Class designation shall be a min of 1in high. Numbers/letters

shall not be shaded or outlined. The surface may be on the

motorcycle, or number plates may be used. Where used, number

plates shall have 1in radius corners, be securely mounted, meet the

dimensions and shall not extend beyond the rear edge of the rear tire.

 Numbers shall be in full view and not blocked by the rider

when in the riding position. A change in rider/class requires a

change of numbers/class identification on the motorcycle.

I was asked to provide this info., but will not be available on this site prior to the meet.
Any further inquiries please contact the other steward, Curtis Smith at smithcurtis@hotmail.com

Thanks
Drew
Title: Re: Number plate Location on Small Bikes
Post by: Strokerface on August 14, 2014, 02:48:17 PM
Well done, thanks!

Jim
Title: Re: Number plate Location on Small Bikes
Post by: dw230 on August 14, 2014, 07:52:14 PM
May I suggest that if the number plate is partially covered by the rider's leg is of no concern. The starter calls the number to the timing tower prior to the bike leaving the starting line. Do you really think that the timers, who are several hundred yards from the course, can read a 3" number with accuracy? I believe the procedure is done by all groups using the raceway.

DW
Title: Re: Number plate Location on Small Bikes
Post by: Stan Back on August 14, 2014, 09:24:15 PM
Come on Dan, you're giving away all the secrets.
Title: Re: Number plate Location on Small Bikes
Post by: Strokerface on August 14, 2014, 09:55:33 PM
May I suggest that if the number plate is partially covered by the rider's leg is of no concern. The starter calls the number to the timing tower prior to the bike leaving the starting line. Do you really think that the timers, who are several hundred yards from the course, can read a 3" number with accuracy? I believe the procedure is done by all groups using the raceway.

DW

I just want to pass tech.

Jim
Title: Re: Number plate Location on Small Bikes
Post by: wobblywalrus on August 14, 2014, 10:10:25 PM
Scooter takes you picture and files it by bike number.  It helps him if he can read it.
Title: Re: Number plate Location on Small Bikes
Post by: wobblywalrus on August 19, 2014, 01:13:07 AM
It is tricky to get the FIM class designation into a small area with 1 inch numbers.
Title: Re: Number plate Location on Small Bikes
Post by: Stainless1 on August 19, 2014, 10:12:09 AM
looks like you left out the paint code.... surly the frogs require that info as well  :roll:
Title: Re: Number plate Location on Small Bikes
Post by: manta22 on August 19, 2014, 11:35:21 AM
It is tricky to get the FIM class designation into a small area with 1 inch numbers.

Looks like a ransom note.   :-D

Regards, Neil  Tucson, AZ
Title: Re: Number plate Location on Small Bikes
Post by: nrhs sales on August 19, 2014, 12:25:40 PM
all your bikes belong to us!!
Title: Re: Number plate Location on Small Bikes
Post by: **RP** on August 19, 2014, 06:54:01 PM
The following is a recent addendum to the AMA supplemental rules.

2. K. NUMBER/CLASS IDENTIFICATION

Motorcycle number and class identification on both sides of the

motorcycle are required for each participant. Numbers shall be

reserved with organizer. The number class shall be displayed

within a reasonably flat, smooth, vertical surface
with a minimum dimension

of 7.5 in high and 10.5 in wide, with a maximum of 8.5in by 11in.

Motorcycle numbers must be a minimum of 3 in high and 1 in

wide. Class designation shall be a min of 1in high. Numbers/letters

shall not be shaded or outlined. The surface may be on the

motorcycle, or number plates may be used. Where used, number

plates shall have 1in radius corners, be securely mounted, meet the

dimensions and shall not extend beyond the rear edge of the rear tire.

 Numbers shall be in full view and not blocked by the rider

when in the riding position. A change in rider/class requires a

change of numbers/class identification on the motorcycle.

I was asked to provide this info., but will not be available on this site prior to the meet.
Any further inquiries please contact the other steward, Curtis Smith at smithcurtis@hotmail.com

Thanks
Drew

Are there any other Addendums to the AMA rulebook that entries need to know about before showing up at tech in a few days?
Title: Re: Number plate Location on Small Bikes
Post by: Chris V on August 19, 2014, 09:19:13 PM
Yes, good thought, I wish I thought to ask that of that when AHG posted # plate rule. Hope it was the only one. AMA rules I don't see any addendums  :?