Can’t afford Shimano’s Di2 for your road bike? Well there are alternatives – but the truth is most probably cost about the same. Or you could take the DIYer route and do it yourself. Computer engineer Nabil Tewolde has created an aftermarket DIY electronic shifting system, made from parts found mostly at the local hardware store, electronics shop and hobby shop.
While it lacks the streamlined look of Di2 it can be fitted to existing components. It likely still doesn’t have the precision of Di2 either, but it certainly doesn’t have the cost.