June 6, 20188 yr Hi all I have a 1977 ty250 that has a non original rear sprocket on it. As far as I can tell, when looking up part numbers, the original sprocket was a dished sprocket. The sprocket I have is flat non-dished. When i look at the alignment it is in line with the drive sprocket. the chain is straight and runs true. Any Ideas how this can be with a flat sprocket? There are no spacers on the front or rear sprockets.
June 7, 20188 yr Author DID rim, will look and see who made the sprocket when I get home, It is a steel sprocket.
June 8, 20188 yr Author Looks like the sprocket is a JTR-809 sprocket, it crosses over to fit a Suzuki. I have no clue what it has for wheels and hubs, i guess since everything lines up I will just run it.
June 8, 20188 yr I have the exact same set-up on a recently purchased 74 TY250. It would be nice to know what it is from.
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