Thanks for the advice but we'll see . I don't know if the bike IS tuned . Someone might have stuck this thing on for decoration . If the OEM filter is larger in surface area I can't see a problem to be honest . By the way the stock filter says HD and K&N on it . Is that OEM ?

 

Still think you should stick with this Rough Crafts - mine is almost 4 years old. The rain doesn’t get through as it’s an oiled filter and I have ridden through some terrestrial storms - no probs - love mine. I do have a rain sock for it but never bother with it unless I’m parking outside and it’s raining. However, firstly if you were just cautious about the filter being a genuine K&N and changing it - you don’t need to remove the big Allen breather bolts you just unscrew the grid-cover. The filter drops out. If you are removing the whole thing, then one of the Imperial (US) Allen keys does fit. I just can’t recall the size this minute.

 

If it says K&N it is a high airflow filter, sold bij Harley in the Screaming Eagle line, so the fuel air ratio could be oke then.

 

Turned out to be M10 after all just machined to a very tight tolerance .

 

Thanks for the contributions , I'll keep an open mind until I've ridden it . I can always put the aftermarket one back on .

 

In a further development I've had to put the original filter back on when I discovered portions of filter material missing from the custom one . I've ordered a K&N element for it because I do prefer the appearance .

 

Interesting thread.

R&D costs money.

Quality parts cost money.

Customer Service costs money.

Patents are often ignored, ideas stolen.

Made in the USA does not seem to matter near as much as it used to, to many.

 

And " Made in England " is just a fond childhood memory when it comes to everyday consumer goods . At least we've still got Triumph Motorcycles . . Anyway , rip off or not , the metal parts are of very high quality so once I have installed a genuine K&N I'll be good to go . In the meantime , at least I've got something to rest my right leg on and to be honest I can't notice any difference in performance with the Harley/K&N in the original housing .

 

So now I have taken delivery of a genuine K&N Custom filter that fits neatly into my fake but good quality filter housing. The K&N is slightly deeper than the fake but the spindle that the cover screws onto is adjustable. So , anyone who has bought one of these filter kits should take the filter out and hold it up to the light to see how much pink fibre has been sucked through their motor before it's too late.

 

Maybe I missed it somewhere earlier, but you were so so very close to showing the K&N Part # in the pic above