Chain missing an O-ring.

[BC_Rob]

Would these be the specs for a conversion for my 1979 GS750E?

Rob

It seems your bike came with 15/41 sprockets and a 96 link 630 chain.

In 530 the translation would be 18/49 and 116 link 530 chain.

Looking online suggests you should be able to pick up a full chain and sprocket setup for your $150 number.

This chain seems pretty good for the money...https://www.amazon.com/RK-Racing-Chain-530XSOZ1-120-Connecting/dp/B000MQ6BDW/ref=pd_lpo_263_t_2/132-0817516-0681035?_encoding=UTF8&pd_rd_i=B000MQ6BDW&pd_rd_r= 333ba5a3-7c33-480e-a78d-cfb308d64977&pd_rd_w=Ifl6M&pd_rd_wg=39hDa&pf_rd_p= 7b36d496-f366-4631-94d3-61b87b52511b&pf_rd_r=G6Z7TKSPVGHGC59E7ASJ&psc=1&re fRID=G6Z7TKSPVGHGC59E7ASJ

[Rich82GS750TZ]

Would these be the specs for a conversion for my 1979 GS750E?

Rob

Rob, sorry, I really don’t know for sure. 79 is a difference engine 8valve from my 16 valve. Probably different front sprocket to rear axle length. You’ll have to do your own research. The chain I bought would be long enough. You’ll have to cut it down. Not sure about the sprockets and any possible spacer needed. Z1 may have the info you need.

[Nessism]

Would these be the specs for a conversion for my 1979 GS750E?

Rob

1979 750E

Stock specs
Front sprocket: 15T
Rear sprocket: 41T
Chain (630): 96 links

Stock ratio: 41/15 = 2.73

With 530, to match the same diameter, we add 3T to the front sprocket, so that comes out to 18T.
Rear sprocket = 18 x 2.73 = 49.2 (use 49T rear sprocket)

A 630 chain is 6/8" between links. So, 96 x 6/8 = 72" long chain

A 530 chain is 5/8" between links. So 72 x 8/5 = 115.2 (use a 116 link 530 chain)

Summary
18T front sprocket
49T rear sprocket
116 link 530 chain.

[BC_Rob]

Thanks so much, I really appreciate it!

[Suzukian]

You should only use chain lube approved for O-ring chains, normal Roller Chain chain lube eats the O-rings, and causes many O-ring chain failures. On an O-ring chain, you only lube the sprockets and where the chain hits them. You can do that with a brush, bike on center stand, and in neutral. Not much lube is needed either.