Quantcast What is the fisical point of bushings....

Go Back   Silverfish Longboarding - The Longboard Skateboarding Community > General Longboard Discussion > Longboard and Skateboarding Trucks

Longboard and Skateboarding Trucks Questions, Opinions, User Reviews & Tuning Tips.





Reply
 
LinkBack Thread Tools Display Modes
Old 09-28-2008, 09:52 PM   #1 (permalink)
Stoked!
 
Cuniliguns's Avatar
 

Join Date: Mar 2008
Location: From the top of mount doom
Posts: 21
Cuniliguns is on the right road.
Question What is the physical point of bushings....

Great ! Now i want to understand the physical point ( how things work ) in mixings different duros of bushings in the same kingpin / truck !

Lets just remove somethings from this all equation :

Kind : Khiros bushings
Shape : Normal, not bitch
Duros: Different
Map : Bottom bushing-> the one closer to the board
Upper bushing-> the one closer to the road, away from the board

Well.....i dont know if both bottom and up bushings beeig barrel is very relevant for this question, but lets not focus on that.

When i think for myself the behaviour of the bushings "inside" the truck i realise that the angle made by the axle (when turning, im imagining a frontal view) affects both bushings in the same way, wich means that the bottom bushing is compressed as much the upper one just on different sides, i.e. the bottom is compressed on the right side and the up on the left...
Are you still with me ?

NOW! i've been thinking about it and i've reached a conclusion (in my mind lol) since it is the bottom bushing that takes all the rider weight ( i think) i think (again) that this has to be harder than the upper one. Can anyone explain how bottom soft upper hard or bottom hard upper soft can differently affect the :

Turning ability , how stable for high speeds, stable for turning, realy anything helps....

I've been thinking about this because ,when speedboarding, when youre exiting a turn , the board can drift a little but when it grips you want it stable, not shaken you up....just if you're not realy that crazy


If it helps, i'll try Paint.exe ....

...my girlfriend says " you're thinking about something else besides me...."
__________________
Ride it, live it, love it :)

Last edited by Cuniliguns; 09-28-2008 at 10:20 PM.
Cuniliguns is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote

Sponsored Links

Old 09-28-2008, 09:57 PM   #2 (permalink)
Concrete Kahuna
 
bucksaw87's Avatar
 

Join Date: Feb 2007
Location: buying used stuff off of SF, so i can look "gnar" with my pre-thrashed gear
Age: 20
Posts: 4,258
bucksaw87 is just really nicebucksaw87 is just really nicebucksaw87 is just really nicebucksaw87 is just really nicebucksaw87 is just really nice
Default Re: What is the fisical point of bushings....

Hi Noob here, um I am an incoming fresman and want to travel on campus on my longboar

proper terminology is that the " bottom" bushing is the closest to the deck, and the "top" is the small one. assuming the top and bottom have the "standard" khiro barrel/conical shape and size, it's generally:
soft top/soft bottom: feels the softest
hard top/soft bottom: feels medium-soft
soft top/hard bottom: feels medium-hard
hard top/hard bottom: feels the hardest
__________________
Quote:
Originally Posted by DELETED View Post
:o Hey guys can you help me with this?
:neutral: Well you see that's a pretty common question, you can find they answer if you put some effort into it.
:o No, that was useless to me just tell me so I don't have to put that much effort into it.
:rolleyes: Yeah yeah, screw you too pal. Teach a man to fish...
:mad: You're assholes!
bucksaw87 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 09-28-2008, 10:08 PM   #3 (permalink)
Stoked!
 
Cuniliguns's Avatar
 

Join Date: Mar 2008
Location: From the top of mount doom
Posts: 21
Cuniliguns is on the right road.
Default Re: What is the fisical point of bushings....

Quote:
Originally Posted by bucksaw87 View Post
proper terminology is that the " bottom" bushing is the closest to the deck, and the "top" is the small one. assuming the top and bottom have the "standard" khiro barrel/conical shape and size, it's generally:
soft top/soft bottom: feels the softest
hard top/soft bottom: feels medium-soft
soft top/hard bottom: feels medium-hard
hard top/hard bottom: feels the hardest

What im trying to understand is ! how does the combinations you've just mentioned affects the rebound, compression feeling etc ... in speedboarding not carving or dancing...
__________________
Ride it, live it, love it :)
Cuniliguns is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 09-28-2008, 10:12 PM   #4 (permalink)
Addicted Cruiser
 
TM_Cruzer's Avatar
 

Join Date: May 2008
Location: Albuquerque
Age: 19
Posts: 632
TM_Cruzer is creating a great reputation.
Default Re: What is the fisical point of bushings....

Quote:
Originally Posted by Cuniliguns View Post
What im trying to understand is ! how does the combinations you've just mentioned affects the rebound, compression feeling etc ... in speedboarding not carving or dancing...
Hardest = most rebound
softest = least rebound


Hardest = more stability = less turnability
softest = less stability = more turnability






PHYSICAL btw.
__________________
"Be Excellent To Each Other"

Quote:
[chandler95] 5:31 pm: this room is so much better than penis
TM_Cruzer is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 09-28-2008, 10:19 PM   #5 (permalink)
Stoked!
 
Cuniliguns's Avatar
 

Join Date: Mar 2008
Location: From the top of mount doom
Posts: 21
Cuniliguns is on the right road.
Default Re: What is the fisical point of bushings....

Quote:
Originally Posted by TM_Cruzer View Post
Hardest = most rebound
softest = least rebound


Hardest = more stability = less turnability
softest = less stability = more turnability






PHYSICAL btw.
So you recomend what, bottom hard for stability and medium up for some rebound ...
__________________
Ride it, live it, love it :)
Cuniliguns is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 09-28-2008, 10:21 PM   #6 (permalink)
Addicted Cruiser
 
TM_Cruzer's Avatar
 

Join Date: May 2008
Location: Albuquerque
Age: 19
Posts: 632
TM_Cruzer is creating a great reputation.
Default Re: What is the fisical point of bushings....

i weigh 135-ish.
i'd go for this

hard top/soft bottom: feels medium-soft
or
medium top/soft bottom.

I have yet to hit 35mph...
__________________
"Be Excellent To Each Other"

Quote:
[chandler95] 5:31 pm: this room is so much better than penis
TM_Cruzer is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 09-28-2008, 10:32 PM   #7 (permalink)
Ar dheis dé go raibh a an
I Support The Fish
Concrete Kahuna
 
streetheap's Avatar
 

Join Date: Dec 2007
Location: 1992
Age: 39
Posts: 1,846
streetheap is a skate savant.streetheap is a skate savant.streetheap is a skate savant.streetheap is a skate savant.streetheap is a skate savant.
Default Re: What is the fisical point of bushings....

Quote:
Originally Posted by TM_Cruzer View Post
Hardest = most rebound
I'm simplifying here, but all things being equal:

more urethane compressing=more rebound

hard bushings don't rebound
__________________
streetheap is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 09-28-2008, 10:36 PM   #8 (permalink)
Stoked!
 
Mr. Dingopants's Avatar
 

Join Date: Sep 2008
Location: 'Burque
Age: 18
Posts: 4
Mr. Dingopants is on the right road.
Default Re: What is the fisical point of bushings....

Quote:
Originally Posted by streetheap View Post
I'm simplifying here, but all things being equal:

more urethane compressing=more rebound

hard bushings don't rebound
true, but that's 'cause they're harder to compress...
I donno, what ev.
Mr. Dingopants is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 09-28-2008, 10:37 PM   #9 (permalink)
Concrete Kahuna
 
karrot's Avatar
 

Join Date: Nov 2006
Location: Hawaii
Posts: 3,539
karrot is just really nicekarrot is just really nicekarrot is just really nicekarrot is just really nice
Default Re: What is the fisical point of bushings....

Quote:
Originally Posted by TM_Cruzer View Post
Hardest = most rebound
softest = least rebound


Hardest = more stability = less turnability
softest = less stability = more turnability






PHYSICAL btw.

Abec11 = most rebound
khiro = least rebound

abec11 = more stablilty, more turnability
__________________

karrot is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 09-28-2008, 10:48 PM   #10 (permalink)
Addicted Cruiser
 
Shiyuchi's Avatar
 

Join Date: Feb 2008
Location: Salem, OR
Posts: 328
Shiyuchi is on the right road.
Default Re: What is the fisical point of bushings....

Quote:
Originally Posted by karrot View Post
abec11 = more stablilty, more turnability
True that.
Shiyuchi is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 09-28-2008, 10:54 PM   #11 (permalink)
Ar dheis dé go raibh a an
I Support The Fish
Concrete Kahuna
 
streetheap's Avatar
 

Join Date: Dec 2007
Location: 1992
Age: 39
Posts: 1,846
streetheap is a skate savant.streetheap is a skate savant.streetheap is a skate savant.streetheap is a skate savant.streetheap is a skate savant.
Default Re: What is the fisical point of bushings....

Quote:
Originally Posted by Mr. Dingopants View Post
true, but that's 'cause they're harder to compress...
I donno, what ev.
Right.
[hypothetical] If a person is huge enough to compress a Jimz bottom shape in say, 97a, enough to achieve some semblance of great rebound, then said bushing probably isn't going to rebound said person's fat ass much, either. Especially once the hangers fracture and the axles bend. [end hypothetical]
Oh yeah: Yes, Karrott, I love your bushings.
__________________
streetheap is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 09-28-2008, 11:06 PM   #12 (permalink)
Concrete Kahuna
 
bucksaw87's Avatar
 

Join Date: Feb 2007
Location: buying used stuff off of SF, so i can look "gnar" with my pre-thrashed gear
Age: 20
Posts: 4,258
bucksaw87 is just really nicebucksaw87 is just really nicebucksaw87 is just really nicebucksaw87 is just really nicebucksaw87 is just really nice
Default Re: What is the fisical point of bushings....

Quote:
Originally Posted by karrot View Post
Abec11 = most rebound
khiro = least rebound

abec11 = more stablilty, more turnability
have you ever ridden...oh gosh, doh-doh's, indy bushings, randal bushings, CORE bushings, venture bushings, or destructo bushings?

ride those, then tell me that khiros have no rebound

khiros are GREAT bushings...i use them on all my setups. they're great in combination with bones, k-rots, stims, and pretty much every other high-quality bushing i've ridden.
__________________
Quote:
Originally Posted by DELETED View Post
:o Hey guys can you help me with this?
:neutral: Well you see that's a pretty common question, you can find they answer if you put some effort into it.
:o No, that was useless to me just tell me so I don't have to put that much effort into it.
:rolleyes: Yeah yeah, screw you too pal. Teach a man to fish...
:mad: You're assholes!
bucksaw87 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!