This is a TPU-tube from evoloop, which is made for Ginkgo.
This tube have a fantastic rolling resistance and the lightest tube in size 406mm on the market.
valve: SV (Sclaverand) 40 mm
for tires width: 28-36 mm
weight: < 20 gr.
We will inform you if the price of this product will be changed according to your wished price.