00:00every wheel spacer pushes your wheels out that's the easy part but the one on this land cruiser
00:05does something else every time the wheel turns it moves air toward your brakes here's how that
00:10works and why it matters more than you think 30 seconds of basics so the rest makes sense
00:16a wheel spacer corrects offset it moves the wheel outward to sit flush with the fender
00:21widens the track and gives the truck a more planted stance simple part big difference but
00:27the moment you move a wheel outward two things become critical how the spacer carries load and
00:33what it does to the heat around your brakes that's where engineering starts load first these bonos
00:39spacers are machined with a 95 millimeter hub centric bore the exact diameter of the lc 300's hub watch it
00:47slide on zero play that fit means the vehicle's weight travels through the hub the way toyota
00:53engineered it not hanging off the wheel studs a lug centric spacer loads the studs instead and that's
00:59where vibration and stud fatigue begin we verify it on the actual truck bore flange step height with
01:06calipers and the hardware matches grade 12.9 studs grade 10 nuts torque to 140 newton meters now heat
01:15the problem nobody talks about brakes convert speed into temperature on a heavy rig like the land cruiser
01:22that heat builds fast long mountain descents towing slow technical crawling where airflow
01:28is already weak so bonos engineers asked a different question the wheel is already spinning
01:34why not use it as a fan flip the spacer over these pedal shaped grooves are the active cooling design
01:41as the wheel rotates the grooves work like an impeller they pull air across the spacer's back surface
01:47and push it toward the brake rotor and caliper every single rotation moves hot air away and feeds
01:53cooler air in the design is patented and this is where manufacturing matters every groove is cnc milled
02:00into the forged body you can see the tool paths that depth and spacing is what makes the airflow work
02:06you can't cast this geometry you have to cut it no electronics no moving parts to fail just geometry
02:13doing its job ten thousand times per trip the rest of the design earns its keep too multi-level steps
02:20on the back match the hub's profile exactly more contact zero rocking full cone nut seats spread
02:27clamping force evenly across every nut instead of point loading the hardware and those notches around
02:33the edge removal slots so years from now the spacer comes off without a fight underneath all of it
02:39forged 6061-t6 aluminum the same alloy family trusted in aerospace fittings hard anodized for a ceramic
02:48tough corrosion proof finish and verified batch by batch through tuv and sgs testing tensile strength
02:55hardness composition over 75 reports because claims are cheap and data isn't so hub centric fit active
03:04cooling forged strength engineered into one part and sitting on a stock 2022 lc 300 grs right now want
03:12to see how it installs step by step that's on your screen how it's forged and anodized also linked
03:18questions welcome in the comments we answer everyone
