Backward rotating brakes? Like spinners? HUH!?!?!

Started by CirclesCenter, August 02, 2006, 10:41:31 PM

Previous topic - Next topic

CirclesCenter

Rich, RIP.

CirclesCenter

Wow. Why did I not think of this.........

Dude, first one to do this to their GS has to post.
Rich, RIP.

Dwn4whadever

A common mistake that people make when trying to design something completely foolproof, is to underestimate the ingenuity of complete fools....

Thanks to advances in automation, Nike shoes will be made by robots. Unfortunately, the robots will be made by children in Malaysia.

Lukewarm Wilson

Thats pretty flash but the big question is when are they for sale? :thumb: :cheers:
Experience enables you to recognise a mistake when you make it again

MarkusN

It's interesting, but to me that's pretty much solving a non-problem. If it ain't broke, don't fix it. That much mechanics to get rid of precession?

Honestly, any of you ever had fork wobble or a full-out tank slapper on a GS?

Alphamazing

Quote from: MarkusN on August 03, 2006, 02:06:28 AM
Honestly, any of you ever had fork wobble or a full-out tank slapper on a GS?

Yes.

Although it was probably mostly my fault.
'05 DR-Z400SM (For Sale)
'04 GS500E (Sold)

Holy crap it's the Wiki!
http://wiki.gstwins.com/

hmmmnz

yep ive had it a couple of times,
i dare say this would make a huge difference to turning. have you ever spun a bike wheel in your hands and then turned it, you feel all the forces,
i think it would be an expensive up grade, but still cool :thumb:
pod filters, costum r6 quill exhaust(no baffles)40/140 jets, heavy duty springs, sv650 rear shock, gsxr srad tail, bandit 600 4.5 inch rim with 150 tyre, gsx twin disc front end "1995 pocket rocket"  ridden by a kiwi in scotland

MarkusN

Quote from: AlphaFire X5 on August 03, 2006, 05:16:17 AM
Quote from: MarkusN on August 03, 2006, 02:06:28 AM
Honestly, any of you ever had fork wobble or a full-out tank slapper on a GS?
Yes.
Although it was probably mostly my fault.
Well, but it proves that it can be induced and is a threat. So my claim of it being a non-problem was premature.

Alphamazing

Quote from: MarkusN on August 03, 2006, 05:24:36 AM
Quote from: AlphaFire X5 on August 03, 2006, 05:16:17 AM
Quote from: MarkusN on August 03, 2006, 02:06:28 AM
Honestly, any of you ever had fork wobble or a full-out tank slapper on a GS?
Yes.
Although it was probably mostly my fault.
Well, but it proves that it can be induced and is a threat. So my claim of it being a non-problem was premature.

Currently, my front end starts to shake on its own when I let go of the handlebars. This should change when I change the front tire, but still happens nonetheless.
'05 DR-Z400SM (For Sale)
'04 GS500E (Sold)

Holy crap it's the Wiki!
http://wiki.gstwins.com/

The Buddha

Quote from: hmmmnz on August 03, 2006, 05:18:49 AM
yep ive had it a couple of times,
i dare say this would make a huge difference to turning. have you ever spun a bike wheel in your hands and then turned it, you feel all the forces,
i think it would be an expensive up grade, but still cool :thumb:

WTF - That is why you lean ... This bling bling - blink blink  :cookoo:  :cookoo: ... is vital for them posers around here that have 300 wide tires, on 24 inch extended blingarms on GSXR1000's that have been slammed 6 inches ... and of course they cant ride - like Who in their right mind wants to ride that POS .... Vital I tells ya ...
Cool.
Srinath.
-----------------------------------------------------------------
I run a business based on other people's junk.
-----------------------------------------------------------------

MarkusN

#10
Quote from: seshadri_srinath on August 03, 2006, 06:13:00 AMWTF - That is why you lean ... This bling bling - blink blink :cookoo: :cookoo: ... is vital for them posers around here that have 300 wide tires, on 24 inch extended blingarms on GSXR1000's that have been slammed 6 inches ... and of course they cant ride - like Who in their right mind wants to ride that POS .... Vital I tells ya ...
Sorry, Srinath, have you read into the linked website at all?

This is no bling bling doodad. He really is onto something there. Question is, if the advantages (elimination of front wheel wobble / tank slapper risk)outweigh the drawbacks (weight, mechanics that can fail). At any rate it appears to be rideable, and at quite a good clip, too.

rangerbrown

this things are great. and soon 2009-2010 will standard on most high end bikes.

its not a problem with the Gs or other small bikes but the faster you go the harder it is to turn.
and what this does is help make it easer by countering the the giro affect. thus faster turn in and less work having to be done by the rider.
nee down mother F***ers

The Buddha

Quote from: MarkusN on August 03, 2006, 06:22:47 AM
Quote from: seshadri_srinath on August 03, 2006, 06:13:00 AMWTF - That is why you lean ... This bling bling - blink blink :cookoo: :cookoo: ... is vital for them posers around here that have 300 wide tires, on 24 inch extended blingarms on GSXR1000's that have been slammed 6 inches ... and of course they cant ride - like Who in their right mind wants to ride that POS .... Vital I tells ya ...
Sorry, Srinath, have you read into the linked website at all?

This is no bling bling doodad. He really is onto something there. Question is, if the advantages (elimination of front wheel wobble / tank slapper risk)outweigh the drawbacks (weight, mechanics that can fail). At any rate it appears to be rideable, and at quite a good clip, too.

OK rotating rotors are going to make the GS safer - OK ...
Cool.
Srinath.
-----------------------------------------------------------------
I run a business based on other people's junk.
-----------------------------------------------------------------

blue05twin

Quote from: rangerbrown on August 03, 2006, 06:26:20 AM
this things are great. and soon 2009-2010 will standard on most high end bikes.

its not a problem with the Gs or other small bikes but the faster you go the harder it is to turn.
and what this does is help make it easer by countering the the giro affect. thus faster turn in and less work having to be done by the rider.


I'm just wondering if it makes leaning the bike easier wouldn't it be harder to stand the bike back up?

Oh wait Nm my brain kicked in now.
Pilot 22.5, Mid 65 , Mains 147.5, Mixture screw 3.5 turns out

Even if the voices aren't real they have some good ideas.

natedawg120

I understand the premiss but they aren't nessesary and it adds anouther thing that can break.  So does this device eliminate countersteering or just make the bike turn easier by eliminating some of the forces.
Bikeless in RVA

ostwayne

It won't eliminate countersteering altogether.
You will still have to make the bike "fall" into a lean to turn, a la:
http://www.superbikeschool.com/machinery/no-bs-machine.php
Especially at higher speeds, since the wind resistance itself will not want to let the bike just lean over, that will upset the equilibrium that you get with the bike vertical (wind resistance (pressure) on left and right sides being equal).
it will just be easier to do with this reverse a doohickey. :laugh:
Like the bicycle tire example, the faster the wheel is rotating, the harder to change the plane.
this thing undoes some of that force that resists the change due to faster rotation.
just my opinion  :dunno_white:
(yay enginerds!)  :cheers:

MarkusN

Counter steering remains in full effect. Overstabilisation of the front wheel that can lead to fork wobble and tank slappers should be eliminated. I'd also expect that stability of straght running would be affected (more finnicky).

The Buddha

#17
And what about the massive addition of unsprung weight ... and the diagram they showed ... I didn't think discs will spin in reverse ... the hub spins with the wheel, the idlers spin opposite to the wheel, and the disc spins with the wheel - OK its carried by the idlers ... so its also opposite ...
OK by adjusting the gearing and the each individual components moment of inertia they can control the speeds within reason - I definetly see a massive increase in un sprung weight. BTW they could put in a watch type spring which will wind up and you can release it for extra stopping power ...  O0
Cool.
Srinath.
-----------------------------------------------------------------
I run a business based on other people's junk.
-----------------------------------------------------------------

Codger

reversed rotors are an old story.  Harley had some when they were competitive in road racing.  That should tell you how old.
Besides some reduced gyro effect, the real magic is the same as the old rear meat slicer disks on the output shaft.  It gives you a geared advantage for the brake.
Modern brakes are so strong and consistent that you no longer need the geared advantage.
As far as the gyroscopic advantage, you add a lot of other junk in the wheel, encroaching on unsprung weight.
He said "I don't know man, ah she kinda funny, you know".  I said "I know, everybody funny, now you funny too".  JLH OB,OS,OB

Acerbis dual sport lights, Progressive springs, Racetech Emulators, Kat600 shock, SW Motech rack, FIAMM 130dB horn, rejetted, Uni Socks, Fly 1010 Yam bars, Acewell 2803.

CirclesCenter

Yes I see some unsprung weight issues, but I doubt that the 3 machined gears constitute that much weight.

I'm sure it would be easily enough compensated for with some nice light aluminum rims.

As far as the counter rotating effect I ask how hard you guys ride. I mean do you ever drag a peg through a left hander and then flop over on to the right peg for a right hand corner?

Now have you observed how quickly you can do this at 20mph? Now notice the adition effort and time to do it at 80mph?

It doesn't really come in to effect as much for those of us who never drag the pegs, but for those of us who do...

I think on a very tight, technical track this could prove to be a huge advantage, and with the gearing being changed you can customize the effort level to a rider's preferences. Think of a very tight track, the GS's gearing and all of our favorite N/A mods combined.

I don't know, but I know that this is out there. Someone contact him and see if you can get one set up for the GS.
Rich, RIP.

SMF spam blocked by CleanTalk