Same for me... I've an order with them that's been outstanding for two months and I cannot get any response whatsoever. I re-ordered the items from Nippy Norman's and had them in a few days so getting stock isn't an issue.
I guess it's bye-bye to the money they took in advance.
NOTICE TO CUSTOMERS
Please be advised that due to unforeseeable personal circumstances, Sidestand Ltd (trading as BMW Bike Bits) has suspended trading.
We are aware that some customers have placed and paid for orders that have not yet been delivered and we will endeavour to provide more information on the status of such orders in the very near future.
In the mean time the company will take no further orders.
We sincerely apologise for any inconvenience this may have caused.