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| tbourner |
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 tbourner World Chat Champion

Joined: 17 Mar 2012 Karma :   
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 Posted: 08:53 - 26 Jun 2014 Post subject: Duck! |
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Are ducks more important than bikers?
https://www.youtube.com/watch?v=skXN6-lrdAw
I'm going with 50/50: Don't stop in the fast lane + poor obs. ____________________ Trev, now a biker?
Looking for first big bike. |
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| Hetzer |
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 Hetzer Super Spammer

Joined: 19 Feb 2007 Karma :     
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| RhynoCZ |
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 RhynoCZ Super Spammer

Joined: 09 Mar 2012 Karma :     
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 Posted: 09:22 - 26 Jun 2014 Post subject: |
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As I know people that ride cruisers, they only use the rear brake. So, I'd knock a few years off the sentence for that.  ____________________ '87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor |
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| Hokum |
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 Hokum Spanner Monkey
Joined: 26 Apr 2012 Karma :  
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| tbourner |
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 tbourner World Chat Champion

Joined: 17 Mar 2012 Karma :   
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| anthony_r6 |
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 anthony_r6 World Chat Champion

Joined: 31 Mar 2011 Karma :    
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| barrkel |
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 barrkel World Chat Champion
Joined: 30 Jul 2012 Karma :   
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 Posted: 10:27 - 26 Jun 2014 Post subject: |
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| Hokum wrote: | Hmm the chap at the end says that cruisers are hard to stop... Err I know their heavy but they can't be that hard to stop surely? |
No.
https://www.motorcyclecruiser.com/effective-braking-street-survival
| Quote: | It turns out that measured stops with expert riders from 100 km/h (just over 60 mph) required an average of just 7 inches more on a Honda GL1500 Valkyrie than on Honda CBR929RR. |
With sticky tyres, decent suspension and sufficient braking leverage (i.e. actual amount of braking effort that can be applied to the wheels), I believe a cruiser ought to be able to out-brake a sportsbike, because a sportsbike braking at the limit is on the point of going into a stoppie from short wheelbase and high centre of gravity, whereas that limit is further away for a cruiser - it can use more of the tyres' grip.
Weight shouldn't matter - friction is proportional to normal force.
I've gotten into long discussions on this forum about it before, though, so I won't be following up if anyone contradicts me. It looks fairly incontrovertible to me, except for one thing: at lower speeds, where a sportsbike won't actually flip if it goes into a stoppie, it should be possible for it to stop sooner than something like a cruiser, because rather than rotating around the front wheel, the cruiser weight pushes the front forward. But that's about it, and a matter of inches at most. ____________________ Bikes: S1000R, SH350; Exes: Vity 125, PS125, YBR125, ER6f, VFR800, Brutale 920, CB600F, SH300x4
Best road ever ridden: www.youtube.com/watch?v=s2MhNxUEYtQ |
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| Wafer_Thin_Ham |
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 Wafer_Thin_Ham Super Spammer

Joined: 18 Nov 2005 Karma :    
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 Posted: 10:28 - 26 Jun 2014 Post subject: |
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| barrkel wrote: | | Hokum wrote: | Hmm the chap at the end says that cruisers are hard to stop... Err I know their heavy but they can't be that hard to stop surely? |
No.
https://www.motorcyclecruiser.com/effective-braking-street-survival
| Quote: | It turns out that measured stops with expert riders from 100 km/h (just over 60 mph) required an average of just 7 inches more on a Honda GL1500 Valkyrie than on Honda CBR929RR. |
With sticky tyres, decent suspension and sufficient braking leverage (i.e. actual amount of braking effort that can be applied to the wheels), I believe a cruiser ought to be able to out-brake a sportsbike, because a sportsbike braking at the limit is on the point of going into a stoppie from short wheelbase and high centre of gravity, whereas that limit is further away for a cruiser - it can use more of the tyres' grip.
Weight shouldn't matter - friction is proportional to normal force.
I've gotten into long discussions on this forum about it before, though, so I won't be following up if anyone contradicts me. It looks fairly incontrovertible to me, except for one thing: at lower speeds, where a sportsbike won't actually flip if it goes into a stoppie, it should be possible for it to stop sooner than something like a cruiser, because rather than rotating around the front wheel, the cruiser weight pushes the front forward. But that's about it, and a matter of inches at most. |
Cruisers are far more likely to lock the front and fall over than a sports bike, when braking upright. ____________________ My Flickr |
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| daemonoid |
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 daemonoid World Chat Champion

Joined: 27 Jun 2008 Karma :    
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| BrownTrousers |
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 BrownTrousers Trackday Trickster

Joined: 08 Sep 2013 Karma :  
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 Posted: 10:53 - 26 Jun 2014 Post subject: |
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Hmm this is a tricky one.
One the one hand it is clearly all kinds of stupid to park in the fast lane of a highway.
On the other hand, its hard not to feel like any vehicle travelling at a reasonable distance behind the one in front should be able to avoid an accident like this. The fact it is ducklings make it seem the car driver was being even more silly but it could just as easily be a cow / shed trailer load / RTA etc. causing an obstruction and everybody, even cruisers (!), would be expected to stop safely.
I wonder if the community really feels any safer by sending the woman to prison (although I'd certainly feel safer by taking away driving privileges). ____________________ Bikers make great organ donors - add your name to the register
Ducati Multistrada 950 | Triumph Tiger 800 XR | Honda CBR500R | Yamaha YBR 125 Custom |
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| Hetzer |
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 Hetzer Super Spammer

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| daemonoid |
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 daemonoid World Chat Champion

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| Hokum |
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 Hokum Spanner Monkey
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| Hetzer |
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 Hetzer Super Spammer

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| Wafer_Thin_Ham |
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 Wafer_Thin_Ham Super Spammer

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| goto10 |
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 goto10 World Chat Champion

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| Rogerborg |
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 Rogerborg nimbA

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| Hokum |
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 Hokum Spanner Monkey
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| dydey90 |
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 dydey90 World Chat Champion

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| BrownTrousers |
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 BrownTrousers Trackday Trickster

Joined: 08 Sep 2013 Karma :  
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 Posted: 15:18 - 26 Jun 2014 Post subject: |
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I wonder what would have been the outcome at court if, instead of a motorcycle, it had been a HGV failing to stop and crashing into the back of her, resulting in her own death?
Its not crazy to suggest the HGV driver would be done for dangerous driving (not paying attention, tailgating, whatever), no matter why she originally stopped.
Legitimate obstructions can cause people to stop. It shouldn't be 'miraculous' that people don't just keep ploughing into the back of the person in front. ____________________ Bikers make great organ donors - add your name to the register
Ducati Multistrada 950 | Triumph Tiger 800 XR | Honda CBR500R | Yamaha YBR 125 Custom |
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| goto10 |
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 goto10 World Chat Champion

Joined: 16 Oct 2011 Karma :   
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Old Thread Alert!
The last post was made 11 years, 288 days ago. Instead of replying here, would creating a new thread be more useful? |
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