pitch?

[Dirt Bikez & Pocket B]

does any1 know the pitch of these orion/atomic chains.
cheers db&pb

 

[roost]

hi, the pitch is 420 . 420 pitch is used on most pit bikes such as Thumptar Pitboss , orion ect. 428 pitch is stronger as chain is bigger and sprockets are wider(2mm i think) it is commonly found on bigger biker such as crf150 , dt175 , it175 , xr100 and some pit bkes ect.

 

[Dirt Bikez & Pocket B]

thanks mate now 2 go buy my new chain and sprocket.
cheers