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You don't appear to have mentioned brakes/shifters, calipers, or rotors, or a battery (not included with a derailleur, usually).
Also, for tt'ing, I'd prioritise closer jumps, so (purely IMO) a 48/35 and a 10-30 setup would make more sense for a TT bike.
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Lots of good things in terms of travel and being able to disconnect the rear derailleur. And yes definitely less to consider in terms the wiring. Shimano 11sp setup is largely the same for 12sp (other than battery and derailleur) and a 105 12sp derailleur is similarly priced to Rival?
A few things that puts me of AXS for a TT setup is:- blip box is large and not easy to conceal on most frames
- stuck with SRAM chainrings and the flat top chain
- no combined shifter/brake
- derailleur compared to new Shimano is enormous (if you are looking for an aerodynamic setup)
- blip box is large and not easy to conceal on most frames
RecoveryRide
onyerbike
@keepit
After being a staunch mechanical/maximum 11 speed fan, I'm looking to modernise for a new TT build. Rival AXS seems a pretty good deal, looks like it would make bike packing (into a box) easier, and the 1x (48 and 10-36) option would be more than enough range for where I'm racing. But I'm a noob and have questions as there are new scary standards and stuff. My current shopping list is:
2 x pairs blips
AXS Blipbox (this is quite a bit more expensive than expected)
AXS charger
Rival AXS rear derailleur
Flat top Force axs 12sp chain
AXS 11-36 cassette
Rotor Vegast cranks with Rotor 1 x AXS chainring (have BB86 so imagine DUB sketchy)
XDR freehub body
Am I missing anything there to get a functional 1 x system? Feels quite simple compared to what I would need to buy for Di2.