I feel a fool

[fingers]

your spengal joint had come of the chumbely wubb so it was fouling the toilet duck?

Thats fairly likely but I think its more commonly the bagshaw trunnion that comes out of synch with the chumbely wubb...

Mines never come near the toilet duck though.

 

[fingers]

(ps was your freewheel shafted?)

 

[Ductape]

non matching socks.
one was just a bit thicker than the other......

 

[garrema]

i will second the axle suggestion.......or you're a roadie

 

[retroyetirigid]

Eeerrrmmmm...your riding a hard tail, its normal to be a bit bumpy.

Completely rigid down a rock garden, that's REALLY BUMPY !! LOL

 

[Iwasgoodonce]

Shoes on wrong feet?

 

[longdog]

You were really riding a full sus. lol

 

[Dr S]

You'd completely forgotten to take the bike and were running down the hill with your arms spaced apart making motorbike noises? (try it, its fun!)

 

[ragnar1984]

Something heavy rolling around in your backpack?

 

[jez-4-bikes-max]

The squirrel caught between the chainstay?