Freestyle
Browse used freestyle BMX frames for sale from riders across the UK. These are the chromoly street and park frames — 20.5in to 21.25in top tubes, chainstays around 12.75in to 13.25in, a head angle near 75 degrees, 14mm dropouts and removable brake mounts. They are bought by riders replacing a cracked frame or building around wheels and cranks they already have.
What makes a freestyle frame different?
The tubing is heavier and the joints are reinforced, because the frame takes the whole load of a drop to flat. Expect butted, heat-treated 4130 chromoly throughout, a gusset behind the head tube, investment-cast dropouts thick enough to hold pegs, and a mid bottom bracket shell. Frames like the S&M ATF and offerings from Sunday, Fit Bike Co and Federal turn up regularly used.
What geometry should I look for?
Top tube sets fit, but chainstay length sets the character: 12.75in to 13in feels quick and easy to lift for street and park, while 13.25in and longer feels planted and suits dirt and bigger transitions. A bottom bracket height around 11.6in is the usual middle ground. Park and dirt frames sit on the longer end of that scale.
Freestyle or flatland frame?
They look similar and ride nothing alike. A flatland frame is up to two inches shorter in the top tube with a much higher bottom bracket, which makes it pivot easily but unstable at speed. A freestyle frame is the right choice for anything involving ramps, grinds or landing from height.
What should I check on a used freestyle frame?
Run a fingernail over the head tube gusset, the seat stay bridge and the welds at the bottom bracket, since these crack first. Check the dropout slots for ovalling and the peg threads for stripped or burred starts, look at the top tube for dents from bar spins gone wrong, and check the seat tube slot has not split around the clamp. Rust inside the bottom bracket shell suggests a long winter life.
How much should a used freestyle frame cost?
Heat-treated, butted chromoly with removable brake mounts sits well above a plain chromoly frame, and popular top tube lengths hold their value longest. Grind wear on the chainstays and dropouts is expected and should not add much to the price. Buy new if you have already cracked one frame at the head tube, since a warranty is the only thing that covers you the second time. Other options sit in the wider BMX frames listings.