engineer

I couldn't find any with the same diamond plate aluminum fenders. This is the second one I've had with those same style. I originally thought they were homemade. I was hoping the fenders could narrow it to a few years or regional market. Thanks guys. F.

So I recently purchased a mini bike with the intent of making it look somewhat post-apocalyptic. Unbeknownst to me at the time of purchase the previous owner had done some "clever" modifications to the thing. First on the list of weird ideas was ditching the normally fat tires and rims in...

Anybody here with an engineering background will to dum down some math and expand some knoledge on hydro electric Turbines. I am trying to understand wicket gate runner interaction in Francis turbines for low head aplications. If no one has any experience does anyone want to put a bunch of...

I picked up a project bike over the week-end. It's an old Sears rigid, with a scrub brake. Even though it has the nicest pivoting shoe, scrub brake I've seen so far... It is typical of scrub brake bikes & the front forks have been bent back towards the frame. Sometime in the bikes past. The...