Here is the answer :
"Bike24 GmbH <info@bike24.net>
Jeu 03/12/2020 13:39
Dear Mr. ******,
Thank you for your e-mail.
The item ROX496013 - RockShox SIDLuxe Ultimate RL Solo Air Rear Shockv Fitting Length x Travel: 165 x 40 mm, is compatible with TwistLoc and OneLoc."
Same link as the 42.5 you bought, I think that you can contact them because they sent the wrong shock.
Hmm, now I’m more confused. I emailed SRAM about the 165x40 remote SIDluxe ultimate shock. This is their reply
DSD Australia (SRAM)
Dec 3, 2020, 22:06 CST
Hi James,
Thanks for reaching out on this one.
The rear shock program is a hard one at the moment, just as there are soo many variations we have most shocks available OEM but not as many AM. We have this shock size available aftermarket as a standard shock though but the remote variant is not available aftermarket.
The part number for the lever adjust is:
AM RS SIDL ULT RL 165X40 SA1 MM 430TS A1 00.4118.305.014
Kind Regards,
SRAM Service Team