Rear wheel doesn't spin freely on DCT - normal?

[ST13Fred]

Yes, the clutch would have to disengage (from the engine) or you would not be able to move the bike by hand.
But I'm still not picturing what is physically going on in the trans between the freewheeling neutral and dragging 1st gear.
When the clutch is disengaged, the final drive should be isolated from the trans, whether in gear or neutral.

 

[vman1313]

Good stuff...thanks!

 

[670cc]

The clutch is between the engine and the transmission. The final drive (chain) is always connected to the transmission output shaft (aka countershaft). So, at least one shaft in the transmission will always spin when the rear wheel spins.

When the bike in in first gear, and the clutch disengaged, turning the rear wheel causes the transmission countershaft to spin, and by way of the engaged gear set, causes the transmission input shaft to spin. It then causes the clutch driven plates to spin against the clutch drive plates. The clutch drive plates would only turn if the crankshaft spun easily, but it does not. The oil drag in the clutch is present even though spring pressure is not applied to the clutch pack.

With the transmission in neutral, spinning the rear wheel causes the transmission countershaft to spin, but since no gear sets are engaged, does not force any motion in the tranny beyond that point, hence the rear wheel turns freely.