Chain size

[Michael Hickey]

Can someone tell me the chain size I should be running on my Hare Scrambler? I now know that it is not a 520.

Thanks,
Michael

[Randy Kirkbride]

Michael,
What year Harescrambler? Some of the old ones could have had 530 on them. Most guys change them over to 520.

[Larry Perkins]

There are 520 and 530 sprockets.  Seems like in "The Day" we used to run Industrial 50 chain which was like 530 width I think.

Larry P

[tomale]

my MC5 came with a 530 chain but several years ago I changed to a 520 chain, of course I changed the sprockets too,,, Al B was able to get me set up.. I have a rear sprocket that is a 525 but that is an odd duck and I have never seen another like..

Thom Green,Still crazy after all these years!
76' 250 MC5 (orginal owner)
74'250 hare scrambler (project)
74' 1/2 440 maico
78' 440 maico
72' cr125 Husky (project)
74' TM125 suzuki
93' RMx 250 suzuki

[marsattacks]

I switched to a 520 on my 78 MC5 from 530. Remember to add a spacer on the countershaft sprocket!

[Kip Kern]

There were even some 525!

[tomale]

Yea,

Thom Green,Still crazy after all these years!
76' 250 MC5 (orginal owner)
74'250 hare scrambler (project)
74' 1/2 440 maico
78' 440 maico
72' cr125 Husky (project)
74' TM125 suzuki
93' RMx 250 suzuki

[tomale]

Yea, several years ago I was looking for a new chain and found this 525 sprocket and then I found out that it was odd so I set it aside and bought a new set of sprockets and chain.
I just did some checking. I took a new chunk of 520 chain and checked it agains the stock sprocket(530), of course it was was too narrow and then I tried to put it on the 525 chain and it almost went on but not quite, it set about half way off the teeth.. I have no idea why I still have it, quess I have trouble letting go of things...From the look of that odd sprocket, it looks like it has been around for a long time so I figure that someone thought it might be a better choice than a stock chain and sprockets.. If I recall it use to be that a 520 was too small to handle the power of a 250 or bigger bike.

Thom Green,Still crazy after all these years!
76' 250 MC5 (orginal owner)
74'250 hare scrambler (project)
74' 1/2 440 maico
78' 440 maico
72' cr125 Husky (project)
74' TM125 suzuki
93' RMx 250 suzuki