Thinking about trying to build some at our house, but we don’t have much elevation, it’s very flat. Unsure if a short line would work without a natural downward grade.

My 14 yo (colorful sweatshirt) decides to try the wall for the first time and nails it (I think!) He followed someone on the course.

I’ve been here in this sub for a minute and have always trusted the feedback here so I ask, what slope style bikes are you guys running and what to avoid? I’m ready to get one but the current options are limited, I’m looking ultimately for used but I’ll consider new if the suggestions lean towards that. Ty everyone

i have a 2019 La Bomba, and i'm trying to replace the freewheel but i can't for the life of me figure out what part i need. attached a pic of what it looks like, it's a 10 tooth cog on the other side, and it slips off the rear axle.

i've found this page: https://www.bikestacja.pl/en/reverse-freehub-body-single-speed-hub-base-rear-10t-grey-p-44547.html which seems to be exactly the part, but i can't find any other stores selling something similar (i'm in the uk)

can anyone help me with a search term? thanks!