Stainless would be very heavy and not a material used on bicycles I give it .00000001% chance as a prototype..why is it not gleaming?
Bike is probably built with Stainless Tubing. Yes it does rust & corrode.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.