Just finished up this 24” wheeler for my ten year old. The whole thing is straight gauge aircraft 4130. Even without any butted tubes the frame was 3.4 lbs.
She was going to get a 1x9 drivetrain, but I discovered the used derailleur I set aside for the build was missing the B tension screw thingy, so I swiped the SRAM XO 1x10 drivetrain which was meant for her mother’s build.
It’s got matching, vintage Trek/Matrix carbon bars and seatpost. Picked them up at the Bicycle Collective. Try finding a modern carbon seatpost in 26.8 mm. Total weight was just over 21 lbs. Those Odyssey BMX pedals are HEAVY.
Powder coat usually takes a couple weeks, so she’s riding it raw until the weather turns nasty. The powder she chose is Wild Lilac which is about the same as the pedals.
Clearance is clearance? Something went wrong between AutoCAD and reality. The cranks stuck out further past the pedal hole than in my model and the forging was just a weird shape on the back of the crank. Had to trim the crank ends up in the mill.
www.velocirax.com
