whats this ???????????

[motomagII]

was in ebay purchase of cranks i bought looks like some sort cassette type freewheel???
says jt and pic on it

[dan-dare]

motorcycle?

[OrgasmDonor]

motorcycle?

before they invented all the other bits, like engine n bars n seat n that

[R Al]

Id say front sprocket off a motorbike, probably MX.
How many teeth does it have ?

[OrgasmDonor]

fook me dude, how many bikes have ye been run over by?

[motomagII]

15 tooth and about the size of bmx freewheel

[stfc]

thats a rear tooth drive sprocket from a cum and wnakel 1958 rotavator......

[motomagII]

 

[R Al]

fook me dude, how many bikes have ye been run over by?

Too many 

Yep Id deffo say its a MX front sprocket they normally go from 13-15 and Im sure Ive had some JT branded stuff before

[dazza]

looks like a yamaha front sprocket

[BOBLAMBO]

and a exhaust manafold??

[stfc]

and a exhaust manafold??

, if you look the base plate (your exhaust manifold!) fits over the top of the sprocket ,the 2 bolts fit through the base plate and hold it all tight, the key ways , all line up and then it slides on to a shaft.....