Since the washers are not under load there is no need to have splines on them. I had to use them on my klr to space the sprocket out. If the OD is to large grind them down. Only reason Play isn't a okay is that a loose chain could twist the sprocket and bind in the empty space resulting in a total lock up of the rear drive. I'm surprised no one has come out with a bushing that can be stuck to the inside of a sprocket. Again since it's just a spacer it doesn't have to be attached too securely, just enough to keep it centered during installation.
Yep and you don't have to be on your bike to use it. Had my car towed 20 some miles back home. As was just said 1 time more than paid for the 3yr membership.
I was gonna say, I've never seen anything above 250cc for MSF supplied rides, but I guess they could use a HD Sportster, same power output. Oh hell, I'll never hear the end of that comment.
Most chains come coated in silicone. I don't know of any chain lube that uses it and I think manufactures only do it to keep moisture off the chain so rust doesn't form while they sit on the shelf.
Well, if you look hard enough you'll find pics and video of the old timers on their Harleys bush wacking trails like a bunch of MX riders. Like I said the bike doesn't make the rider.