Tintin
Race Dog
Hi Guys,
I was having buffeting issues with my screen. I read about the Tobinator and tried my own home made solution. Just basically took 2 steel joiners and extended the screen. The result was an improvement, so I decided to do proper job. First let me explain the principle for those that don't know about Tobinators.
When the bike is moving thru the air, by virtue of the forward motion, a high pressur area develops infront of the screen and a low pressure develops behind the screen. As the air attempts to equalise the pressure it bleeds over the top and sides of the screen. this is not a smooth and controlled flow, so ultimately your helmet gets caught up in the unpredictable equalisation zone = buffetting.
One way to alleviate this is to reduce the low pressure behind the sreen. Getting airflow under the screen is one good way - this is what the Tobinator does by creating a gap between the top of the head light and the bottom of the screen. A better way would be to create a vent in the screen itself, but that means cutting your screen, something I'm a bit warey to do.
Anyways I concocted my own solution to get airflow under the screen...
Let me know what you think
Pictures below:
Over all effect
Closer
Closer Still
The bracket not on the bike
I had this bracket laser cut. The guy made 3 for me, so I have 2 spare. If anybody wants one PM me, just wana cover costs. Word of warning though, he used a soft aluminium so they are a bit bendy, and I only installed it last night so have not done a road test yet. I'm off to ET this weekend, so will report back on the performance....
Anyways your thoughts are welcome
I was having buffeting issues with my screen. I read about the Tobinator and tried my own home made solution. Just basically took 2 steel joiners and extended the screen. The result was an improvement, so I decided to do proper job. First let me explain the principle for those that don't know about Tobinators.
When the bike is moving thru the air, by virtue of the forward motion, a high pressur area develops infront of the screen and a low pressure develops behind the screen. As the air attempts to equalise the pressure it bleeds over the top and sides of the screen. this is not a smooth and controlled flow, so ultimately your helmet gets caught up in the unpredictable equalisation zone = buffetting.
One way to alleviate this is to reduce the low pressure behind the sreen. Getting airflow under the screen is one good way - this is what the Tobinator does by creating a gap between the top of the head light and the bottom of the screen. A better way would be to create a vent in the screen itself, but that means cutting your screen, something I'm a bit warey to do.
Anyways I concocted my own solution to get airflow under the screen...
Let me know what you think
Pictures below:
Over all effect
Closer
Closer Still
The bracket not on the bike
I had this bracket laser cut. The guy made 3 for me, so I have 2 spare. If anybody wants one PM me, just wana cover costs. Word of warning though, he used a soft aluminium so they are a bit bendy, and I only installed it last night so have not done a road test yet. I'm off to ET this weekend, so will report back on the performance....
Anyways your thoughts are welcome
