Sounds like some of the stuff you are using is 2 generations old as well. Its good news for those selling their old di2 stuff but I just can't see the value in the second hand market right now.
Both my batteries are new. I've not included chainrings and cassettes into my pricing. Can you get a complete Ultegra hydraulic di2 setup for £1400? Only ones I can see seem to be the new 105 - but prices do seem really good on it!
R7150 here for £1050 sounds like an amazing deal? This one on
CRC sounds almost too good to be true?! Am I reading it right? £440 for an entire groupset?! That sounds an absolute steal! (all I can spot 'wrong' so far is it being 53/46 chainrings, 30t maximum cassette so is short cage and very high geared with 170mm cranks).
But for Ultegra you need to be looking at £1600-1800 and some don't include cranks or batteries. But you're correct I'm using quite a mixture of old (2 generations? No, some of mine is 3 gen and older non-series - barely above the 6770 10 speed!) and new kit across multiple series/generations, the new 12 speed 105 might have been a better option and possibly comparable to the Ultegra I'm running. I chose 11 speed mixture of non-series and Ultegra to made it more cost effective for me - plus there was no 12 speed or hydraulic di2 105 groupset at the time!
The 6870 derailleur is pretty old, but it sits on my Zwift setup. With it costing me £50 easy to scrap it and buy a replacement when needed, but it's almost immaculate, but I did pick through lots to find a tidy one (hint, look for underside pictures as you can tell how grotty the springs get and the corrosion for how much 'weather' they've had). I figured why spend on the indoor setup as at the time had the R8050 already, so just got the cheapest RD I could to get it running so could use the 8050 for my other build (I had 2 of them at one point but when I figured I could sell one for a profit before I'd used either, I did). Beauty of Di2 is it just all plugging together and working regardless of series. When I got 1 new 8050 RD for £135 - current pricing is around £180-220 for them, or £200-300 for a 12 speed. It's massive economy of scale. I sold one R8050 for £240 during lockdown (the first one I'd got & paid £180 for that I had regretted after I picked the other one up, so was happy to!). People got so desperate!
Once you get your head around di2 cables you'll realise you can save a bunch of money on some components, they're very simple. Literally a 2 core cable. There's nothing to wear out (even on junction boxes) as there's no moving parts. Most are fitted and never unplugged so the ends and connections don't wear or get loose. 'It just works'. Easy to buy S/H for £10-16 a cable, rather then £25-30 for new. I've bought 20 cables now and only a couple of them new (Merlin takeover sale), so it has been easy to save a bunch of money doing it. I've only got 1 scrappy looking one, but it still works (so it's on the FD of the Zwift setup if it ever causes a problem).
If I only bought new now, I may have a 12 speed di2 setup for the same price, but at the time I started out I really wouldn't have been able to justify the price (I've put the components on an 8-9 year old bike) unless I bought a new bike with it on. Which I may still do this year! I also wouldn't then have 2 setups where I can quite easily swap any components around to troubleshoot/test - as that's why I did it. The Zwift bike mechanical 11 speed groupset went onto my other half's commuter - which needed an almost complete replacement (old 8 speed). So for me my spread of purchasing, 'doing it myself' and figuring it all out putting it together made it affordable, gave me understanding of how it all works, but also enabled me to sort another issue (for the better half) and give me 2 setups. I've now also got 'everything' on 11 speed - making things far simpler maintenance and parts wise!
@Roady
It's that light yes, but the saddle rail mount. I have the saddle post mount like the first one pictured in your link. The other one clamps upper and lower saddle rails and the one I need.
Ahh ok, sorry don't have that mount with mine only the one pictured like you already have.
The connector is very similar to Cateye - unsure if I've tried mine on a Cateye mount to see if it fits but could be worth trying? I imagine a Cateye saddle rail mount is much cheaper and easier to find!
Looks an absolute speed weapon! Nice!
