In general I think we're all in for the shock of our lives come February 2009, regardless of whether it's a household central heating repair part or an e-bike.
One of my suppliers, (a well run company keeping stocks light but ordering often etc., etc.,) has just frightened the life out of me. With their latest delivery received from China they've had to send all their trade customers a new price list. To stay in business, I quietly ordered from an inefficient supplier who in the past I've had issues with, because with plenty of unsold stock they've got terrific prices - although they did warn that they might have to increase prices after Christmas depending on the currency fluctuations. As I already know what the new prices roughly are, I won't be staying with them long - just long enough not to be the first in my locale to get a bad name for dear prices - everyone will be in the same boat by the time I need to place significant replenishment orders - I just don't want to be the first.
The public has been quite phlegmatic with all the bad news, as prices on the High Street have not affected them that much yet. It's the phoney price-war. Most shops have to order their Christmas stock many months in advance - well before the pound fell dramatically. Once the Christmas reductions and January sales are out of the way, those still in business will have to re-order - AND that's when we'll ALL feel and hear the pips squeaking, as all that replacement stock has to ordered at the new higher international prices. (On the bright side those call centres located abroad will no longer seem such a bargain to British companies, so at least those jobs should slowly head back to the UK).
Inefficient companies with lumpy, heavy stock-holdings will initially appear to offer a better deal. Well run companies trained to run with 'just-in-time' stock-holding will get hit the hardest first. When it comes to price increases there is no such animal as a loyal customer.