Hello again Eye _m_no_angel,
These engineers who say you or I can go 5,000 miles between
oil changes, Do they ride ? and more important, did they actually
check engine after 5k miles, like a compression test? metal particles
in engine oil?
Do you think the engineers checked for metal particles
in the primary case after 10K and same for Tranny after 20K
could it be I am too much the cynic? never really believing?
There is an entire division of researchers that do all manner of long and short term testing of everything from entire bikes to individual components. Most are engineers of various types and some are even PhD's and a lot of them do ride. It is a very precise and analytical environment. I'm not too bad with Harley's and I was a factory trained technician, but I would be nothing more than a minnow in a tank full of sharks in their world.
Harley also uses several locations as test tracks, and new designs and components are ridden for thousands and tens of thousands of miles, and often more. They use one in Arizona and they just sold one, I think, here in Florida, and they also use a few others. I was told that most of them are in hot climates.
For Harley, (and for most other brands too,) the testing and refinement of a new model takes about 3 years. So the bike you might be seeing for the first time on the showroom floor in 2020 is already being developed and tested right now.
What are your thoughts about K&N air cleaners and bike
parts by 'DRAG' Thanks very much!
I like K&N air filters and have them on all our bikes except for both our new ones. (2016 Roads Kings) They do a great job and are a good investment if you're going to keep your bike for a long time. They cost a bit, but will pay for themselves. Don't over-oil them. Just a light mist with the oil in your kit. Once you're running the oil from your crankcase breather will keep oiled.
I don't have K&N filters on the new bikes because they came with a washable filter from the factory. We'll see how long they last and when they are no longer effective I'll replace them with a K&N.
Drag supplies some good parts and some average parts. They are pretty much one of the main suppliers for independent bike shops. Some of their stuff is made overseas, but that's no big deal as long as it's well made. You have to kind of evaluate each part and what it's use will be and so forth. For example: Their brake pads are relatively inexpensive and don't last as long as others, but they're not bad
, and are a decent choice for a guy short on cash. But there are better choices. On the other hand something like a shifter shaft by Drag is going to last as long as the best made more expensive option but cost a $hitload less.