Cambers are scary and annoying!

[Feasty]

Okay so I was on my way to work and have this shortish 2 lane section on a long 'S' shaped curve between 2 roundabouts. I can normally overtake 2 cars in this bit but today decided to take the 3rd car in the later section which is a longish lefthand curve. The car looked to be moving rather slowly and after the roundabout it goes to single lanes again with double solid lines in the middle of the road. I didn't want to be held up!

I got to the roundabout (where you can see well beforehand if anything is on it) and rather late realised I hadn't gone fast enough initially to get in front of the 3rd car. So I had to cut towards this car in the left hand lane in order to take the roundabout in a straight line. I think I have to take it in a straight line otherwise I'd be trying to corner over reverse cambers - not a good idea I don't think!! Cue my heart in my throat and my balls around my ears, I was probably 3cm's away from going over the central kerb of the roundabout to cut over it or lose the bike on the 1st camber... thankfully I managed to hold it.

So how do you deal with cambers on roundabouts? Must they be taken in a straight line or could the bike actually take it and stay on the road whilst cornering over them?



(Obligatory diagram attached!)
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Previous: Aprilia Habana Retro 50cc (beauty), Yamaha SR125 (fell apart), Honda XR125 (nippy little commuter), Honda SLR650 (Geewhizz), Yamaha Diversion 900S (Smoooooth) written off courtesy of a stupid escaped horse.
(7 year gap), BMW F650 (Relaxing ride). Aprilia Caponord ETV1000 (Big and bold). Yamaha FZS600 (got me in trouble too quick!).
Current: Yamaha TDM 900 (Comfy, light but big, power when needed).

[iooi]

[Feasty]

[Aka Matt]

We have some very steep cambered roundabouts down this way but they wont be so steep to pose any danger to the user so just take them as a normal roundabout. Also you should only straight line a roundabout like that if the road is clear around you and the roundabout is clear really so not to put yourself or anyone else in danger.
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Current bike(s): 2016 Tuono 1100 Factory, 1998 Hornet 600
Previous: 1998 YZF600R Thundercat, 2001 Bandit 600, 2002 GSX-R 600 K2, 2011 Tuono R, 2013 Z1000SX

[Feasty]

[T0MMY]

You need to get some confidence in your cornering! All the adverse camber means is that your lean angle is effectively higher than you thought by a small amount. No problem unless you actually think you were leaning far enough already that the extra couple of degrees is enough to have you off your bike
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ZX6R + CBR600RR

[yen_powell]

I went on a 'traffic engineering for motorcycles' course a few months back and apparently new rules have come in stating that, new roundabouts, new mini roundabouts and resurfaced existing roundabouts have to be profiled so as to avoid sudden changes in the camber or in the grip of the surfacing material.

Out of 12 people on the course, only me and one other wasn't a rozzer (accident investigation bods mostly), but fortunately none from my high pointage days, or I might have been brutally truncheoned in the lunch break!
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Blackmail is a nasty word........but not as nasty as phlegm!
XT1200Z and a DR350 in bits

[Ol]

[G]

[Feasty]

[G]

IAM teaches to go straight across, providing you have observed that the roundabout is appropriately empty.

[mr-inteligent]

Advanced riding teaches the bike is most stable when in a straight line under constant acceleration.

But You wont get a IAM rider cutting the roundabout if there are 3 other cars on it.

[Feasty]

I take observation whilst on my bike or in my car anyway, there's very few times when I won't know what's around me at any given time - it's what keeps me alive! So it makes sense under these circumstances that IAM teaches you to cut the roundabout, of course it'd be stupid to do this with cars on it...


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Previous: Aprilia Habana Retro 50cc (beauty), Yamaha SR125 (fell apart), Honda XR125 (nippy little commuter), Honda SLR650 (Geewhizz), Yamaha Diversion 900S (Smoooooth) written off courtesy of a stupid escaped horse.
(7 year gap), BMW F650 (Relaxing ride). Aprilia Caponord ETV1000 (Big and bold). Yamaha FZS600 (got me in trouble too quick!).
Current: Yamaha TDM 900 (Comfy, light but big, power when needed).

[the grim reaper]

I will always straight line a roundabout if it is safe to do so, what winds me up is the number of people who go left fomr the right hand lane or right from the left hand lane. Nightmare.

We have some of those cambered roundabouts near me, I use them to get the bike off the floor

Cheers

Grim
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Adverts don't always work: Remember that advert, where the army are running across the desert and they have a wounded man on a stretcher. They get to a ravine, the bridge is down and a caption pops up that says, 'What are you thinking?'. I don't know about you but I was thinking, 'Christ, I'm glad I'm not in the f***ing army'.

[Wave2k]

One of the more challenging cambers ive had to deal with, dont let the pictures fool you, its ALOT more steep than it looks.

https://i74.photobucket.com/albums/i270/GVK34/ringaction08/T8L_0120.jpg
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Ducati 1299 Panigale
2009 Corvette C6 z51
RS125->CBR400->RXS100->GSXR750K2->Ducati749S->CBR600RR5->TL1000R->DRz400->RSVR1000->Honda VTR SP1->CBR400->GSXR1000K6->Honda H100->CBR600RR3->Ducati1299

[G]

[ZRX61]

[yuri2085]

I have seen one roundabout that had an INSANE camber, was in the car at the time but it was baffling and insane.... INSANE (probably like the one he describes)

[Feasty]

[ms51ves3]

[bikedemon99]

adverse camber is it " sloping from the r/bout, if it is then just go slower or one day when its wet you'll be taking a slide, good luck
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Ride safe

[Alex A]

Always follow the lane around the roundabout. If there's a steep camber, get some lean on and power out. It's more fun that way anyway. If it's wet, then adjust your speed accordingly.

Plus you don't even have to think about whether your cutting is going to interfere with any other vehicles, and just concentrate on getting the manouver right.

I strongly dislike drivers/riders who cut lanes on roundabouts and change their lane from entrance to exit. It's unpredictable and thus dangerous.
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Current: Ducati Panigale R / Ducati Streetfighter S / Suzuki GSX-R1000 L5