Topic: new chain

[tramp]

i have a 1978 750f that needs a new chain
the parts guy i called said that it took a real oddball size called a 6-30
its kinda pricey so i'd figured that i would find out if he's right
any info will help

[Bodi]

Yes, it has a 630 chain.
You can convert to 530 chain, modern 530 chain is lots stronger than 1970's 630. This makes it a bit lighter, and you'll have more choices in chains. partsnmore has the sprockets, I think JC Whitney may as well. If you like the 630 chain, make sure the sprockets are OK if you replace the chain. Normally I find they are done when the chain is.

[eldar]

the 530 is fine for our bikes. The older 750s had the 530 to start with but chains in those days were too weak. Now a 530 is strong and the 630 is almost unbreakable practically.

Many switch to the 530 as it is lighter and quieter and takes a bit less power to turn. Also more choices in chains and sprockets. and they are cheaper.

[nickjtc]

Do change the sprockets too.