[calen636]

Man, 6th to 1st. No wonder your rear wheel locked up. Even low rpm in 6th would probably be quite a jolt going in to 1st. Slipper clutch will only do so much... Unless you were hydroplaning or something, if the rear is sliding out on you like that in the rain, pull in the clutch and let it regain some traction and probably upshift to second. In the rain, use the brakes to slow, not the engine. Sounds like you did good not panicking too much and keeping it up though. Especially with a semi rolling along next to you.

 

[calen636]

Just to eliminate the simple stuff, you said you were almost at idle in 6th gear cruising through town. Could you have bogged it down so much that it caused the bike to die?