Originally Posted by
Joearch
Had not realized Di2 was such a good feature. Can a 105 group bike be upgraded to electronic shifting?
in any case I will have to go test ride a Bianchi at the LBS that features the brand. Like many folks around here the interest in aesthetics and technology of a bike is very high.
You can re-use *some* parts, typically brakes, crank and bottom bracket, chain and cassette. The upgrade to remaining parts needed for electronic generally run about $1100, thus it’s usually cheaper by a bit to get a Di2 equipped bike as the manufacturer gets a break on bulk parts. But price it out mechanical vs. Di2 with an equal wheel set. Sometimes at the Di2 price point the wheels are higher end so the bike costs more than just the difference between electronic and mechanical.