Bought an Ultegra R8000 groupset for the backup bike which I'll probably give to my dad in a few months. Total of £500, bit cheaper than the £955 RRP, and I have a better chain/BB. The Cannondale (one of the last R series hand made in the USA rather than Asia) currently has a mix of Tiagra and Ultegra 3*10 speed, so 2*11 will be a nice upgrade.
DA R9100 chain and BB.
New R8000 Crankset and Cassette
Used good condition STI shifters, front + rear derailleurs.
Already have an Ultegra 6800 set of brake calipers.
Will be interesting to see how it differs from my main bike (2006 Opera Palladio) which has full R9100 Dura Ace I bought new in 2020, along with C24 9100 wheels and an R8000 cassette. That bike has had 9600 kilometres ridden and pretty much no issues besides the usual chain and pad wear.
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