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Author Topic: Hump on back neckline  (Read 4212 times)
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stay`tee
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« Reply #15 on: September 05, 2017, 06:52:41 PM »

The "hump" has stuff all affect on speed, however, "standing"(flattening your back) can make a significant improvement  smiley
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AHG
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« Reply #16 on: September 06, 2017, 11:49:50 AM »


#1 - The comments regarding SCTA rules serve no purpose on the BMST page, as that speed meet is strictly involved with the AMA and F.I.M. regulations.
The same would pertain to motorcycle rules inquiries for the Cook Shootout.

#2 - Leathers with the hump on the back are allowed in all AMA and F.I.M. LSR classes, except for streamliners naturally
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Pippi2
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« Reply #17 on: September 07, 2017, 09:27:57 AM »

Page 23 of the BMST Rule Book:
2. O. (IV) LEATHERS
Suits made of synthetic material are not permissible. The use of stretchable Kevlar and perforated materials in non- critical areas are permissible. Leather suits shall be one- piece design or joined by a full circumference zipper at the waist. Leathers cannot be too big or loose. Critical area (knees, elbows, forearms, shoulders) armor or 2-layers of leather is highly recommended. Due to invisible flames, riders’ of motorcycles burning fuels of Methanol content are recommended to wear Nomex underclothing or something of similar nature.

We do not have a rule on leather humps. It's the machine that gets classified for records, not what you are wearing.
The BMST has different rules than the SCTA.

Stay fabulous,
Linnea
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comet
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« Reply #18 on: September 12, 2017, 10:39:44 AM »

Chris it was brilliant to see you running the bike this year. Can't tell you how much Dawn and I enjoyed flagging you both off. Well done to you both.
Best wishes.

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Chris V
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« Reply #19 on: September 13, 2017, 09:33:27 AM »

Comet, we are off topic here but anyway I am looking forward to next year grin, Sandy not so much cry
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comet
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« Reply #20 on: September 13, 2017, 10:16:08 AM »

It was a hot one this year for sure. It must have been hard work sitting in leathers.
I have read elsewhere (previously) that the race humps in leathers do not have much of an effect on performance until higher speed numbers are reached, over 125ish. Not sure if that is correct or not. But I have also heard they offer a safety benefit. A local hospital in Kent was doing research a couple of years ago into accidents with and without speed humps. I never found the outcome which would have been very interesting.
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