Di2 is very good. You might need to do some fiddling to discover where a cable has disconnected or broken, but that's so so vastly less frequent that having to replace cables that it barely counts as a worry.
eTap is significantly better for that very reason. Wireless is the future.
Di2 is very good. You might need to do some fiddling to discover where a cable has disconnected or broken, but that's so so vastly less frequent that having to replace cables that it barely counts as a worry.
eTap is significantly better for that very reason. Wireless is the future.