Reduce stress - if your bike is any good then it will have cost you some money. Lock your bike and improve the chances that it stays in your possession, or mark it to make it less appetising to steal.
Abus BORDO 6500K Granit Folding Lock 90cm (Gold Sold Secure)
Abus BORDO Grip Big 5700K/100 Red SH Folding Lock 110cm
Abus Numerino 5410C Combi Cable Lock 10mm/85cm
ABUS Ultra Mini Ultimate 410 U-Shackle Lock 140mm + 10/120 Cobra Cable (Silver Sold Secure)
ABUS Ultra Mini Ultimate 410 U-Shackle Lock 140mm (Silver Sold Secure)
ABUS SportFlex 2504/90 Lightweight 3-in-1 Lock - for mounting under a the water bottle holder