I have a new SL5 Tarmac frame that I need to build from the ground up. I don’t need to go top of the line SRAM or Shimano but I would like to keep the components relatively light. What would be a good group for me to consider and how much am I going spend to get this bike on the road?

105 is the best combination of performance for the money.

https://www.merlincycles.com/shimano...et-118524.html

Thanks for the link. Great prices

You should be able to get a complete Ultegra DI2 groupset (brakes, shifters, cranks, cassette, chain) for about $1200 less wiring ($100). That frame deserves it. You will need direct mount brakes if it is not disk. BTW direct mount brakes are really nice.