I just built up a Tarmac with the new Sram Red component set and it's frequently dropping the chain to the inside of the crank.

I'm running a SRAM RED AXS Power Meter Crankset (2 x 12 Speed) (48/35T) and new RED 10-30 cassette.

Here's how I setup and dialed in the system:

  1. Set up front derailleur with dedicated (red) FD setup tool. Rear derailleur was in innermost gear for the setup procedure. Side note: After using the setup tool, on the biggest gears (48x10), the gap between chain and FD is around 4mm. Much bigger than the 0.5 - 1mm recommended for fine tuning. When I actually bring the gap down to around 1mm, the chain will not properly engage when shifting to the big ring and just skip around a bunch.
  2. Used Braze on support wedge and double checked perfect alignment with the FD setup tool.
  3. Dialed in low limit screw to leave 0.5mm gap between FD and chain in 35-30 gears

Despite following the directions as closely as I possible can the chain will frequently drop when shifting from big ring into small ring. I’m amazed this is still a problem on a $5000+ groupset.

What can I do here to keep the chain from dropping? Is this just an issue that I have to contend with?