Sacrilege!
Those snail style chain adjusters go back to at least 1948 when Royal Enfield became the first production motorcycle to use a spring loaded swing arm at the rear of a motorcycle.
Yes, the number of depressions on the snails are not always equal on the left and right side when the rear wheel is aligned.
This is just a traditional part of owning a hand built motorcycle.
Yes, the snail's rotating out of position while your trying to tighten the axle nuts happens without alerting you.
But that is how we learn to deal with the problems our forefathers had to endure.
No one said life was easy.
These modern screw type adjusters are just one more step in the efforts to modernize the truly Classic motorcycle that Royal Enfield represents!
What next? A disk brake? Hydraulic valve lifters? A working electric starter motor? An automatic compression release? A computer controlled fuel injection?
Next thing you know, someone is going to try to sell us anti-lock brakes!
Just kidding you folks.
Who knows? Maybe some day I'll actually install the chrome plated snails I got from my dealer when he went out of business.