On Thu, 17 Nov 2016 10:02:46 -0800 (PST), Salad Dodger
<
Salad....@gmail.com> wrote:
>On Sunday, 13 November 2016 16:37:45 UTC, Clive Long wrote:
>> Hi,
>>
>> When I am riding I hear a "flapping" noise. The frequency of the "flap" increases as I ride faster (never particularly fast).
You don't have something caught in the tyre treads, or a nail?
>
>The two times I can recall this happening it was
>
>a: collar fastening on jacket, flapping against the underside of the helmet.
>b: end of chin strap on helmet not tucked into little sleeve thing.
I have had a weird flapping of the shoulders of my leather jacket at
certain speeds when it was new and a bit more supple than it is now,
and, as it was summer, I was only wearing a T-shirt underneath, so
there was a bit of slack. The fluttering got so bad that my crash
helmet was being shaken in sympathy (I guess the airflow must have
been pulsing against the bottom of the lid) and I was almost seeing
double at one point. Weird effect.
--
-Pip