Norton Primary Chain Adjuster Anchor by Norton Code: NGBA Primary chain adjuster anchor in stainless steel. These are made to the same dimensions as the originals with the exception of the length of the threaded part. This is longer to allow these to be fitted to our Alloy Engine Plates. Earn 0 Reward Points £0.00 £12.50 QTY: ADD TO BASKET OUT OF STOCK ADD TO WISHLIST