This part fits well on many handlebar pinchbolts with a washer (base is 5mm thick)

Xtrig - Replacement Spacer (M12) 10mm

Also really useful in road use

Adopted clamp head shaft to minimize backlash

Integral lock head

Alpinestars - Bionic Action V2 Protection Jacket past type tag-Base Layers This part fits well onAn ultra lightweight CE level 1 and UKCA certified protection jacket offering excellent upper body protection against impacts. This protector features an all new Cell Technology chest protector for optimum ventilation, while its divided construction ensures quick and easy donning. The super ventilated Cell Technology back protector is ergonomically engineered for an enhanced adaptive fit. Both the front and rear protectors are backed with foam padding