Hello
I'm fitting a Moto Hooligan airbox to my bike at the moment and needed new throttle body-airbox seals.
Instead of getting them from the U.S. I contacted Simply Bearings Ltd and ordered two.
They initially miss-understood my order and sent plain BS 335 O rings instead of Quad/X ring seals but kindly sent the correct seals free of charge when the mistake was identified.
Top class service and highly recommended company.