AirFlex series is the slimmest

cassettes and chains

nothing else

Charging Method and Time: Recharges in 3 hours via a standard USB port (cable included)

It is even compatible with oval chainrings

Ion Scrub Flat Shoes - EU 43 - Black Heavy/Bulky AirFlex series is the slimmestThe Ion Scrub shoes are not your average flat pedal shoe. Featuring Ion's Pin Tonic 2 sole, this new outsole profile features positive threads in the forefoot and heel area for perfect traction while pushing or carrying your bike. There is also a negative profile on the other hand which offers perfect grip and space for the pins while riding. Combine that with the tacky rubber compound and toe zone protection with a comfy EVA mid and insole and you