420 is the same as USA 40/41 pitch this is 1/2″ pitch with 1/4″ between inner plates.
Please note 420 chain will not fit 428 sprockets and visa versa.
All except the 20T can be used with our sprocket carrier, these carriers have a 25mm or 30mm bore.
These 420 plate wheel can be used with the Comet TAV2 218353A / 218355A.
This item is usually dispatched within 3 to 5 days.