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N8
October 27, 2010 11:42pm
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i have looked all over silverfish, and all over the fucking interpronz and the only information i can find on it makes it sound really unneccesary nimbus trucks have rake, but they only brag about how the rake lowers the degreee of the hanger which seems really inefficient compared to lets say, an angled riser. so i was wondering if raking the hanger has any improvement on grip or bushing delay or bushing interaction or even if it effects how the truck rides, what bothers me is most people use limiting bushings in their raked hangers, and i really thing that elims are how you make bad trucks act
nice. especially boardside unless you run sphericals of course. dont worry i have your back max.
BUT THE REAL QUESTION IS
WHAT DOES IT DO?
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Re: what is rake
Belak4life
October 27, 2010 11:52pm
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Don't quote me on this, but if I'm not mistaken rake is the position of a hanger. So for randals and bears it's offset. It allows hangers to be flippable which account for lean/"stability". The general idea behind it is to provide a low stable ride when flipped and keep a responsive, turny ride when unflipped. I'm pretty sure it does not improve grip as that applies to split axle.
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Re: what is rake
PeterBroberg
October 28, 2010 2:05am
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Rake makes your lean to turn ratio progressive. What this means is that with a hanger with a lot of rake (ie a nimbus back hanger) as you lean farther and farther it will continue to turn more but not at the same rate. Say at neutral position you have a 1:1 lean to turn ratio. As you lean over your ratio decreases or increases with your negative or positive rake. That is why a set of nimbus hangers that are two backs is so drifty, yet it still feels responsive and lively. When it is close to neutral position it has a high turn to lean ratio, but it changes quickly to a much more leany setup as you dive over. ya dig? My favorite nimbus setup was a softish barrel/slightly harder cone combo. But I also ran two front hangers most of the time because I decided I don't like rake and they have considerably less.
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Re: what is rake
kinetict
October 28, 2010 8:20am
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peter has the best explanation
if you want to read about nimbus
there is pages of discussion
http://www.silverfishlongboarding.com/forum/longboard-skateboarding-trucks/128940-post-you-nimbus-truck-setup-2.html
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Re: what is rake
Mexifly
October 28, 2010 8:37am
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Rake is the angle from the pivot cup to the axle.
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Re: what is rake
wooden
October 28, 2010 10:28am
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Rake is the angle at which the axle is offset from the pivot axis.Compared to a normal Randal, a flipped Randal, due to the rake, has a shorter wheelbase and lower ride height. Rake changes your leverage over the bushings. I think the Nimbus trucks are stupid in that they have insane amounts of rake when it's highly unnecessary. Small amounts of rake are neato because you can change the way a truck rides simply by flipping your hangar, but a giant amount of rake like the back Nimbus hangar simply removes a lot of your leverage over the bushings (something that can be accomplished by adjusting your ride height or changing the actual angle the trucks pivot at). Large amounts of rake also make flipping the truck feel incredibly weird, Nimbus' are super tall and twitchy if you flip them over.
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Re: what is rake
N8
October 29, 2010 12:04am
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this may be the first thread of any substance on here quick lets 4chan. but seriously peter that really really helps what i was really trying to figure out, and mainly hear from other people is how the lean to turn gets affected by the hanger being out of line more then a degree or two with the pivot axis, thanks peter for the insight that was really helpful and very enlightening, i am going to make a ten degree raked hanger and put it on a sixty degree plate my thinking is just like you said and if this sounds back asswards let me know because you have such a stupid degree of baseplate you would be able to turn like all get out, but you would have the stability of a lack of leverage of your bushings and you would be able to turn like a 60 degree but have the stability of lets say something not above forty five, because rake rapes your leverage
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Re: what is rake
Anonymous Coward
October 29, 2010 8:30am
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I think those would probably be killer trucks for freeriding. The nimbus back hangers have 10 degrees of rake and the baseplates are at 50 degrees so it would be pretty easy to see what it would feel like with some wedging. I think that would be a lot more practical that the angle they are at now because that makes the effective riding degree (fancy term I just made up) 40 degrees at neutral but as it drops off it gets ridiculous. Like in a hard corner the current back hangers might potentially behave like a 30 degree plate, and no one rides anything like that.
I <3 turnPeter
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Re: what is rake
max
October 29, 2010 10:13am
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I don't understand how the hangar could change lean/turn ratios just because of the rake. It still pivots on the same angle of the kingpin, the axle is just in a different place, and that does all the fucking with your leverage.
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Re: what is rake
Anonymous Coward
October 29, 2010 7:11pm
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i think max, that because it makes you taller or lower that gives you more leverage. like the difference between a topmount and drop deck. because of where your weight is you can completely change the feel of a truck. I could be wrong..
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Re: what is rake
wooden
October 29, 2010 7:28pm
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Max is wondering why the rake causes a progressively changing lean/turn ration. I can't quite grasp how a large amount of rake makes your turning anything but slower thanks to a loss of leverage, it'd be nice to see some pictures or a video of it actually turning slower deeper into a turn.
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Re: what is rake
max
October 29, 2010 11:53pm
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shits tuff
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Re: what is rake
Danny
October 30, 2010 11:14pm
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wait, so i could flip my 175 munkae hangars cause they have rake?
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Re: what is rake (2 replies)
max
October 30, 2010 11:41pm
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yea but that would fuck with the aerodynamics.
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Re: what is rake
Danny
October 30, 2010 11:59pm
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Quoted from max:yea but that would fuck with the aerodynamics. so true....
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Re: what is rake
SectorBrian
November 4, 2010 8:59pm
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Rake is what we call Caster in Alignments. It is the "actual" turning angle, pivot to axle. Another way to think about it is the steering on a bicycle. The headset is your kingpin and the distance from that strait line and the wheels axle is the rake/caster. If your wheel is in line with the headset you can ride with the bars turned around just fine, but the farther out the wheel the quicker the steering will be when the bars are turned backwards. Also watch how the wheel lays down when turning the farther the angles are moved out, trick bike or a long lowrider. Cars with negative caster finish a turn once initiated, this is used in large, old, cars with manual steering. On the other side the more positive caster, the more the car will want to continue driving strait and is what causes the steering wheel to return to center out of a turn. This is how I see it at least, sorry for the book.
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Re: what is rake
Anonymous Coward
November 11, 2010 11:58am
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WTF? Dennis
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