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Are wheel spacers safe? Here's our answer, no marketing, just process. In this video, we show you every step of ours, from a solid bar of 6061 aluminum to a spacer torqued to spec on a real car.

Inside the BONOSS factory: 6061-T6 forging, CNC machining, black hard anodizing, laser-marked traceability, and the 75+ TÜV/SGS test reports behind every batch. Plus the numbers: 100K+ real-car measurements, 1,100+ documented installs, owners in 30+ countries.

Comment your car below, and we'll tell you exactly what we'd run on it. BONOSS. Built like it matters, because it does.

🔎 Find your exact fitment (built from 100K+ measurements): https://www.bonoss.com/product-category/wheel-spacers
📖 Install guides & case studies: https://www.bonoss.com/bonoss-blog
🔧 75+ TÜV/SGS reports · 1,100+ installs · 30+ countries · 100+ owner reviews

⏱ Chapters
0:00 Are wheel spacers safe? Our answer
0:23 Three shortcuts that cause spacer failures
1:05 Forging 6061-T6: billet to blank
2:22 CNC precision: hub-centric fit & Active Cooling
3:30 Black hard-anodizing & laser traceability
4:04 75+ TÜV/SGS test reports & real measurements
5:01 Real car install, torque spec & re-torque rules
5:36 The right question to ask

#bonoss #wheelspacers #factory

Category

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Motor
Transcript
00:00The internet has one question about wool spacers. Are they safe?
00:03You've seen the words, vibration at high speed, cracked aluminum, sheared studs. Here's our answer.
00:10And it isn't a slogan. We're going to show you everything. The forge, the machines,
00:16the lab reports, and real cars. This is Bonas. No marketing. Just process.
00:22Most spacer failures come down to three shortcuts. Shortcut 1. Casting. Molten aluminum
00:29poured into a mold. Cheap and fast. But it can hide porosity you can't see until the day it cracks.
00:37Shortcut 2. Lugcentric fitment. The wheel hangs on the studs instead of seating on the hub,
00:43so the bolts carry loads they were never designed for. Shortcut 3. Mystery hardware. Ungraded studs.
00:51Soft nuts. No torque spec in the box. A spacer is a structural component. It sits between your wheel
00:58and your hub at highway speed every mile you drive. So we build it like one.
01:05Every Bonas spacer starts as a solid bar of 6061 aluminum. The same alloy family as aerospace fittings,
01:13engineered on these workstations before a single cut. Step 1. The bar is sawed into billets.
01:20Step 2. Into the furnace. Heated to forging temperature. Step 3. The forge. Thousands of
01:29tons of pressure press the billet into a blank. This is the step casting can't copy. Under that pressure,
01:35the metal's grain flows and densifies. No pores. No weak planes.
01:41Step 4. Trimming. The flash is sheared away. Step 5. Pre-drilling.
01:52Step 6. T6 heat treatment. Solution heat treat. Then artificial aging. That's what turns 6061 into 6061 T6.
02:03The strength to weight ratio your suspension actually needs. Want proof the metal is right?
02:09Look at the chips. Long, continuous curls. You only get those from ductile, uniform grain,
02:16and dialed-in tooling. Brittle, porous metal crumbles. This metal flows. Then precision.
02:23CNC operations on every single spacer. Rough turning.
02:28Knurling. Knurling the sidewall. Drilling the PCD bolt pattern.
02:34Finish turning the face. Finish turning the multi-step hub-centric back.
02:40So the spacer seats on the hub lip, and the hub carries the load, not the studs.
02:46Backside drilling. And milling the cooling grooves. Those pedal-shaped grooves are our patented
02:52active cooling design. As the wheel turns, they channel air across your brakes.
02:58The lightweight plus pockets remove every gram that isn't carrying a load.
03:03The nut faces use a full cone seat. So clamping force spreads evenly. There's even a removal
03:10notch machined in. Because a spacer should never seize onto a rusty hub. And the hardware.
03:17Grade 12.9 studs. The highest common strength class. Pressed in.
03:23With grade 10 nuts. Every detail you've never thought about, we've already argued about.
03:30Then the armor. Black hard anodizing. Blasting. Racking. Chemical etching. Rinsing. Rinse again. Black dye.
03:40Nickel salt sealing. Final wash and dry. That steps is why a Bonas spacer shrugs off road salt.
03:47Break dust. And winters. Finally, laser marking. Part number. Spec. Batch code.
03:55Every spacer is traceable back to its batch. If we ever need to find one, we can. That's accountability
04:02you can hold in your hand. Now, most brands would show you a render. We'll show you paperwork.
04:08Over 75 TUV and SGS test reports. Tensile strength. Fatigue life. Salt spray.
04:14Run out. Independent. Third-party labs. Not in-house claims. On the bench. Calipers on every thickness.
04:2220 mm means 20 mm. And the scale. 1176 grams for the 20 mm. 1314 for the 25. Behind the
04:33products.
04:34Over 100,000 real car measurements in our fitment database.
04:39That's how we know one car needs 20 up front and 25 and back. Over 1100 documented installs.
04:51Owner photos from more than 30 countries. Show cars it meets. Thousands of marketplace reviews.
05:00And then, the part that actually matters. The car. Measured. Fitted. Torque to spec. In a star pattern.
05:13Sunken becomes flush. But here's what we tell every customer. Because trust includes the boring parts.
05:21Retorque after your first 50 to 100 miles. Recheck at every tire rotation.
05:28A spacer done right is boring. No vibration. No noise. No drama. That's the point.
05:36So, are we'll spacers safe? Wrong question. The right question is. Is this spacer safe?
05:42This alloy? This forge? This test report? This torque spec? You just watched our answer. Start to finish.
05:49Find your exact fitment below. Built from 100,000 real measurements. Comment your car,
05:55and we'll tell you what we'd run on it. Banos. Built like it matters. Because it does.
06:00Those are at unpl게요.
06:00How do you do it?
06:00As soon as I put mine?
06:00I get something.
06:00Where made me

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