OK, the recent air filter discussion, and my sudden need for a new one's led me to do some looking-around for alternatives. I rang my dealer for a price on the OEM one and they also offered me a "high performance", reusable filter by
DNA. Anyone heard of these beasts? Interestingly they have different filter part numbers for a Triumph America and a Triumph Bonneville America. Have emailed them asking for a "please explain" and will let you all know what (if anything) they say about it.
Matt