I am struggling to understand one of the current component trends among electronic component manufacturers.
Historically, and we’re talking about the last 50 years or so, we could find parts to keep an old bike functional. It may not have been of the highest quality, but it could be made to work. For example, if you own a mid-90s road bike with an 8-speed Shimano transmission today and have worn a cassette or broken a shift lever, Shimano is making a suitable replacement. It’s a very basic version of the original piece, but it will work and you can ride a bike.
So far, this is not the case with electronic parts, which is worrisome. If you bought a Di2 road bike in 2009 and a replacement, derailleur, or Di2 cable from that time failed, you may need to purchase a brand new group. No “compatible downgrade” is being performed for this system.
I really don’t know what to say to customers when they ask about replacing a 10 speed Di2 derailleur. 20 years ago, I was able to find a shift lever for your Specialized Mtb from the mid 80’s (and I still can today, in fact). I can browse eBay to get Di2 parts and expect the best, but this supply will inevitably go out.
This is not just a Shimano issue. I have 2 bikes built with 11 speed Sram E-tap. These are exceptional things. But if I need to replace a front derailleur on one of these bikes, I’m in hose. No replacement available. Maybe I can find a used one, but they sell for over $ 600 on the second hand market, which makes me wonder: why doesn’t Sram want that money?
I don’t even see it as a long-term problem. Since both Sram and Shimano seem to be eliminating mechanical systems, this will soon become a big problem for cyclists everywhere.
So with all that in mind, I’m curious about what everyone’s thoughts are. What have you all experienced with maintenance and replacement? Does anyone know of any industry manufacturer working on functional spare parts for old systems? Are we heading for a situation with Di2 parts and cables that resembles thefts of catalytic converters? What can we expect?