Whilst at Hilltop the other day I noticed Geoff had a tyre that he'd taken off a bike that still had slime in ....
As the tyre stands, the slime is at 3 O'clock (or 9 o'clock!), but it had turned into a congealed sort of deep veined thrombosis and had stuck to the inner wall. So the wet towel analogy wasn't so far off

The pic doesn't really show it to well - but this lump of slime is a couple of cm's thick and about 15 - 20 cm's in area and would certainly weigh enough to feck yer front wheel at speed.
As the tyre stands, the slime is at 3 O'clock (or 9 o'clock!), but it had turned into a congealed sort of deep veined thrombosis and had stuck to the inner wall. So the wet towel analogy wasn't so far off

The pic doesn't really show it to well - but this lump of slime is a couple of cm's thick and about 15 - 20 cm's in area and would certainly weigh enough to feck yer front wheel at speed.