Motorcycle Racing Forum

Racing Discussion => Racing Discussion => Topic started by: MELK-MAN on March 01, 2003, 11:17:29 AM

Title: is the "speed hump" on leather important???
Post by: MELK-MAN on March 01, 2003, 11:17:29 AM
getting ready to order some leathers from SYED and the speed hump is $50.. is it protection, wind reduction.. both?? and is it really important.. in not setting any records and my f4 is not endangering the sound barrier or anything.. the lettering on the back of leathers looks way better without a speed hump and i have a great back protector already, the bohn pro-racer.. 1" thick, kevlar raised areas, so was gonna leave the hump off...
watcha think...
Title: Re: is the "speed hump" on leather important???
Post by: Speedballer347 on March 01, 2003, 11:30:14 AM
I say it is important.
I have(had) a set of leathers w/ a thick/solid/dense hump.
October Gateway, Turn 7.  I was the guy up in the air ;D
Landed directly on my hump(neck) and helmet hard enough to bust my Arai and completely deform the hump (and "knock me the F out" :D ).  
I came too, 'knowing' that I had broken my neck from the impact....thank God(!!!!!!), I hadn't

imho, my upper vertabrae would have fractured w/out the hump.
Just my .02

Title: Re: is the "speed hump" on leather important???
Post by: ceesthadees on March 01, 2003, 12:24:08 PM
Notwithstanding the remarks from sb347, I was told by Vanson that the bump was strictly for wind reduction and the material in it was not for impact protection.

However, it is hard to argue with sb347 comments!!

BTW sb347, that is the funniest d@mn gif I have ever seen  ;D
Title: Re: is the "speed hump" on leather important???
Post by: motomadness on March 01, 2003, 01:48:02 PM
I have a SYED leather suit with the hump.  I think it's important for both reasons you mentioned.  Although it might not aid in protecting you from an huge impact type of blow, but it will provide an imtermediate stop for your helmet, as well as improve the coverage of your spine and neck area.  

Did you know if you break your neck near your skull, above T5 or T6, you'll die almost instantly.  This may not keep you from breaking your neck, but it will provide you with extra protection.

I crashed, out of turn 1 at Gateway.  It was a simple low-side, but I was almost instantly thrown to my back and knocked out.  If you look at my helmet, you'll see that I hit the lower part of my helmet.  I had no other scrapes or scares to speak of.  Did the pad help?  I think so, and I probably won't buy another suit without it.
Title: Re: is the "speed hump" on leather important???
Post by: Speedballer347 on March 01, 2003, 02:00:09 PM
I think the 'impact' importance of the hump really comes down to the density/hardness of the hump itself, which is dictated by brand.

I was luck enough to have had a 2" thick, ultra dense/hard impact absorbing hump.  But I think that is the minority when it comes to the humps.
Almost every other hump I have seen feels like it is stuffed w/ Kleenex, very soft and not much impact absorbance.  Then I think, you get more into the aero benefits, and away from softening the 'punch'.

Any padding is better than none, but I feel that the outcome of my crash could have easliy been different w/out that 'solid' hump.
Title: Re: is the "speed hump" on leather important???
Post by: Super Dave on March 02, 2003, 05:24:03 AM
The hump idea has always been for aerodynamics.  However, when Buell tested humps for Vanson in a wind tunnel, it was found that they did not help, in fact, they were worse than no hump.

As for impact...

If you toss yourself on the ground, you hit the back hump first, you could twist your neck back.  You could be all done by the shock back tearing all the arteries in your neck, etc.  Unless something immobilizes the movement of your neck, it isn't going to work.  It the hump were to not allow your head to move back, like you have to do when you're tucked down under the bubble, then it might work.  But you couldn't see where you're going.  

Humps are BS...but you have to decide.
Title: Re: is the "speed hump" on leather important???
Post by: stickman on March 02, 2003, 09:12:17 AM
I know nothing about humps, but every pro I've ever seen has one. If they did nothing, I don't think they would wear them.
Title: Re: is the "speed hump" on leather important???
Post by: Super Dave on March 02, 2003, 10:06:26 AM
It's called Marketing!  Differentiation from others.  

That's why some teams that run EBC stickers, list EBC as a sponsor, and are used in advertising...don't even use EBC brakes.  

At the pro level, it's only marketing, not what they are really using.  

Just like Nicky is actually wearing Joe Rocket leathers...they are not.
Title: Re: is the "speed hump" on leather important???
Post by: MELK-MAN on March 02, 2003, 10:30:06 AM
QuoteThe hump idea has always been for aerodynamics.  However, when Buell tested humps for Vanson in a wind tunnel, it was found that they did not help, in fact, they were worse than no hump.

As for impact...

If you toss yourself on the ground, you hit the back hump first, you could twist your neck back.  You could be all done by the shock back tearing all the arteries in your neck, etc.  Unless something immobilizes the movement of your neck, it isn't going to work.  It the hump were to not allow your head to move back, like you have to do when you're tucked down under the bubble, then it might work.  But you couldn't see where you're going.  

Humps are BS...but you have to decide.


this was kind of my thinking. The guys at SYED when i asked about them said, "well, 75% or so are getting them put on but it seems mostly cause everyone is getting them.." .. the heard effect case in point..
i like the clean look without and have a great back protector. Had a real big get off and landed on my back some time ago. bent some things back and turned my BEST laps ever later that day...
later
Title: Re: is the "speed hump" on leather important???
Post by: MightyDuc Racing on March 02, 2003, 10:42:19 AM
Hey Greg.  I say just get what makes ya happy.  They look cool, but I read an article a while back that said they make ya a bit slower (not enough to notice) and don't really add any extra protection.  I personally think they look cool and will probably get one on my next set of leathers.  Just my .02.

Title: Re: is the "speed hump" on leather important???
Post by: MightyDuc Racing on March 02, 2003, 10:44:11 AM
By the way...u going to Moroso for sure?  We are heading over early Saturday morning and staying at the Seminole Country Inn in Indiantown.  They give a $10 Moroso discount and that's where HD told me to stay.  Looks like a cool little bed & breakfast.  See ya there!  Maybe we can pit near each other.  I should have a case of burgers from my food sponsor we can chew on while we're there, too.
Title: Re: is the "speed hump" on leather important???
Post by: Super Dave on March 02, 2003, 10:47:20 AM
Quote They look cool, but I read an article a while back that said they make ya a bit slower (not enough to notice) and don't really add any extra protection.
Um, that's what I think...  Why waste the money...
Title: Re: is the "speed hump" on leather important???
Post by: MightyDuc Racing on March 02, 2003, 10:50:49 AM
Quote Why waste the money...

If you like the way they look, then the few bucks extra is worth it...imho...but don't buy it expecting to go faster...that's all I'm saying.  Why do people buy a Lexus instead of a Toyota?  Cuz they like the style and recognition, I guess.  LOL...just realized that I drive an Acura... ;D...only really cuz it has 260hp and none of the Accords can match it.  
Title: Re: is the "speed hump" on leather important???
Post by: stickman on March 02, 2003, 11:41:31 AM
Here's an interesting thread about humps on the wera board:

http://forums.13x.com/showthread.php?s=&threadid=16802
Title: Re: is the "speed hump" on leather important???
Post by: Super Dave on March 02, 2003, 11:50:13 AM
QuoteHere's an interesting thread about humps on the wera board:

http://forums.13x.com/showthread.php?s=&threadid=16802

Lots of opinions...  No evidence either way.
Title: Re: is the "speed hump" on leather important???
Post by: MELK-MAN on March 02, 2003, 02:32:33 PM
Mighty duc.. have not decided on Moroso. I need to so i can pre enter. My friend Cameron, runs an sv650 in the am. class, lives 20min from there so i may stay there. Put another burger on the ol grill for me though and i would not turn it down!! ;D
  BTW.. my friend Jeff Farrell is part owner of the new DUCATI dealer in tampa.. Hes getting a 748 ready for him to ride track days and me to race a few events at Jennings! Should be fun. I rode his 999s today on the street.. what fun..
later
greg
Title: Re: is the "speed hump" on leather important???
Post by: MightyDuc Racing on March 02, 2003, 03:40:16 PM
Yo!  Hook me up with some sponsor love, bro!  I need all the help I can get to afford racing this thing.  
Title: Re: is the "speed hump" on leather important???
Post by: spyderchick on March 03, 2003, 06:31:31 AM
Quotegetting ready to order some leathers from SYED and the speed hump is $50.. is it protection, wind reduction.. both?? ...
watcha think...

It's up to you, but leathers are a b1tch to repair with a hump in place. The name does look better without the hump and it is easier to read (on photos) as well.  You could move the name to the spot above the expansion panel (very visual) and still order your hump. As far as the "safety" of the hump, I can see a benefit in some instances, and a detriment in others. Aero benefits? That's debatable as well. Go with your gut on this one. You already have a quality back protector. If you feel the hump will offer you some peace of mind in regards to injury, that's your call. To me it's 6 of one and half a dozen of the other.