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I repaced an an AMC box with a TTI. I did not find a problem with the alignment of the rear chain. The bottom mounting point needed to be moved slightly and the bolts were slightly bigger, so I made new ones out of titanium. The primary chain alignment was a minor problem. The TTI box has a longer mainshaft which affects the situation when you use the early clutch. My primary drive uses Jawa speedway engine sprockets which float on splines. With a road bike, you would not do that, but if you rat through all the old Norton engine sprockets, they all fit the 5 degree Norton taper, but several of them give different primary chain alignments. When you find one which goves the correct alignment, you can adjudt the overall gearing with the countershaft sprockets which Bruce supplies with the TTI box.Your problem would be more about finding an engine sprocket. Works Norton were making replica Manx Nortons, so might be a source. You need to find somebody who played with ES2 or other old singles. Alternatively, you could use a Commando clutch. The difference in alignment is about 6mm.
I repaced an an AMC box with a TTI. I did not find a problem with the alignment of the rear chain. The bottom mounting point needed to be moved slightly and the bolts were slightly bigger, so I made new ones out of titanium. The primary chain alignment was a minor problem. The TTI box has a longer mainshaft which affects the situation when you use the early clutch. My primary drive uses Jawa speedway engine sprockets which float on splines. With a road bike, you would not do that, but if you rat through all the old Norton engine sprockets, they all fit the 5 degree Norton taper, but several of them give different primary chain alignments. When you find one which goves the correct alignment, you can adjudt the overall gearing with the countershaft sprockets which Bruce supplies with the TTI box.
Your problem would be more about finding an engine sprocket. Works Norton were making replica Manx Nortons, so might be a source. You need to find somebody who played with ES2 or other old singles. Alternatively, you could use a Commando clutch. The difference in alignment is about 6mm.
