Morning bread-run + babysitting. Had to lug ABUS Bordo lock with me for locking two bikes. Found a nice place to mount it while still being flexible. Strap by Decathlon. Brompton S8E :
Abus Bordo 6500A SmartX review: Bluetooth bike lock and alarm | T3
Folding Lock - Bordo Centium 6010/90 black - 90cm length / 5mm steel plates - Walmart.com