1200 Disc Brakes

[G8HSV]

My 1200 Herald has been fitted with disc brakes at some point in its life.   My problem is they are pulling to the left atfter the winter storage.  I will replace the caliper seals BUT what type are they?   I suspect they are type 12 as there is a 12 on the caliper itself......see photo

Can anyone verify this, please?,

[heraldcoupe]

Yes, that's a type 12,

Cheers,
Bill.

[G8HSV]

Bill   Thanks...that was quick.....