BONOSS 4Pc 18mm 4x100 to 5x120 Wheel Adapters for BMW E30 Convert BMW 5 Lug Rims

$345.35 Buy It Now or Best Offer, FREE Shipping, 30-Day Returns, eBay Money Back Guarantee
Seller: bloxsports ✉️ (1,822) 96.8%, Location: Guangzhou, 广东省, CN, Ships to: WORLDWIDE, Item: 126082392999 BONOSS 4Pc 18mm 4x100 to 5x120 Wheel Adapters for BMW E30 Convert BMW 5 Lug Rims. Since 2007, BONOSS has been committed to producing high-quality, high-safety, and high-stability automotive wheel accessories (wheel spacers, wheel bolts, wheel nuts, etc.). BONOSS forged 4 lug to 5 lug wheel spacers for BMW E21/E30 are made of high-grade 7075-T6 aluminum alloy.
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ITEM DESCRIPTION
BONOSS / BLOXSPORT FORGED WHEEL SPACERS KIT

Wheel Adapter kit Quantity

4 Adapters+20 Stud Conversion+20 Lug Nuts+12 Allen Bolts+4 Keys

Manufacturing

Forged

Wheel Adapter Thickness 

18mm / 0.71" inch

Knurling Design

Yes

Vehicle Side

PCD 4x100 CB 57.1mm

Conversion Stud Grade

ISO Grade 12.9

Wheel/Rim Side

PCD 5x120 CB 72.56mm

Conversion Stud Material

SCM440 Alloy Steel

Lug Bolt Thread Pitch

M12x1.5

Lug NutsSeat Type

Cone/Tatered

Wheel Spacer Material

Forged Aluminum 7075-T6

Lug Nut Head HEX

19mm

Bolts/Studs Certificates

Reports of TUV

Hubcentric Spacers

Yes

  • Factory  direct, Welcome to be a Distributor, Customized/OEM/ODM Available
  • Global Pioneer Active Cooling Technique, Safer
  • Forged AL7075-T6 with Tensile Strength ≥572 MPa, Safer
  • Multi-stage Hubcentric Design, More Stable at High-Speed, Safer
  • ISO Grade 12.9 Wheel Bolts with Gasket Structure, Strength ≥1282 MPa, Safer
  • Over 66 TÜV Test Reports Certificated, More Professional
  • Worry-free 10  Years Warranty, Friendly Customer Service

Important Note: Please confirm these points before buying.  

Fits 1977-1992 - BMW - M3 E21 E30 318is 316i 318i 320i 325i; VW Golf Mk1 Mk2, Cabrio 1993-2002,Caddy 1982-2003, Corrado 1988-2005, Golf 1974-1998, Golf Cabriolet 1979-2002, Golf Variant 1993-1999, Jetta 1979-1999,Scirocco 1974-1992 This part 4 Lug to 5 Lug wheel adapters is compatible with the BMW E30 E21/VW 4 Lug models to Convert BMW 5 Lug wheels/rims etc. To confirm that this part fits your vehicle, please attached your car, make, and year. FAQ & Tips

1. What’s the data of my BONOSS forged BMW E21/E30 4 Lug to 5 Lug aluminum wheel spacers ?

The data of BMW E21/E30 4 Lug to 5 Lug wheel spacers is Bolt Pattern (PCD): 4×100 to 5×20, Center Bore (CB): 57.1 to 72.5, Thread: M12x1.5. These items are also compatible with vehicles in the same bolt pattern, center bore diameter, and thread size as BMW 3 Series E21/E30 318i, 320i, 323i.

2. Why should I choose BONOSS BMW 3 Series E21/E30 318i/320i/323i 4 Lug to 5 Lug wheel spacers ?

Since 2007, BONOSS has been committed to producing high-quality, high-safety, and high-stability automotive wheel accessories (wheel spacers, wheel bolts, wheel nuts, etc.). We pay attention to the safety and quality of BMW E21/E30 wheel spacers and other accessories. BONOSS has over 10 years of professional design and manufacturing experience, trusted by more OEM brands and professionals. We have sufficient inventory to ensure faster delivery, and customize wheel spacers only in 3 days. Professional pre-sales consultation will solve your confusion, please feel free to contact us, after-sales warranty for 10 years will be more rest assured. BONOSS wheel spacers provide higher performance, more additional functions, fast customized service, and friendly service while maintaining a more competitive price, which is your best choice.

3. Are BONOSS BMW E21/E30 4 Lug to 5 Lug wheel spacers safe?

Generally, wheel spacers are made of steel or aluminum. They are just the automobile accessories installed between the assembly hub and wheel. As long as you use high-quality BMW E21/E30 wheel spacers and install them properly, they are safe. Take the BMW E21/E30 4 lug to 5 lug wheel spacers as an example, we use forged AL7075-T6 material (tensile strength ≥572Mpa), modern CNC machining by 0.02mm tolerance. All of our products have got more than 50 TUV authoritative test reports. Compared with those cheap casting wheel spacers, BONOSS forged 4 lug to 5 lug wheel spacers are safer, higher performance, and more professional in design.

4. Why do I need BONOSS multi-stage hub centric wheel spacers for my BMW E21/E30? 

BMW E21/E30 hub centric wheel spacers offer a better system of support and stability. They are designed to make a snug connection between the wheel and vehicle hub, reducing the high-speed vibration and ensuring safer driving. Compared with an ordinary hub centric. BONOSS uses the multi-stage hub centric design, which means that multi-stage hub-centric can make the spacers more closely fitted to the wheel hub, greatly reduce the vibration of high-speed caused by the inaccurate hub centric. Besides, they can also be used to change the center diameter of your car, making it possible to install wheels with different center diameters to your vehicle properly, transforming lug-centric wheels into hub centric wheels.

5. What are BONOSS BMW E21/E30 wheel spacers made of ?

BONOSS forged 4 lug to 5 lug wheel spacers for BMW E21/E30 are made of high-grade 7075-T6 aluminum alloy. They are formed by withstanding continuous strong pressure that improves the strength of the wheel spacers. And the aluminum alloy has many excellent characteristics, such as high strength, wear-resistance, impact resistance, and high-temperature resistance, and performs good mechanical properties: Tensile Strength≥572Mpa, Yield Strength≥503Mpa, and Failure Elongation≈11%. Compared with ordinary AL7075 materials, the tensile strength and yield strength are about five times higher. BONOSS insists on producing professional forged wheel spacers, which are safer, more professional. 

6. What’s the performance of the BONOSS forged grade 12.9 wheel bolts on BMW 3 Series E21/E30 wheel spacers? What’s the special meaning of BONOSS engraved?

BONOSS forged grade 12.9 wheel bolts are made by the forging process which brings excellent mechanical and physical properties. Each of them is engraved with “B”, which means that these are manufactured by BONOSS own factory, the quality is guaranteed. They have achieved ISO standard grade 12.9, tensile strength≥1,282Mpa, ultimate tensile load≥152,000N, hardness (HV)≥395, NSS≥500H, two million times limited life range test without damage… They are strong enough to use in daily driving, off-road, and other scenes.  7.  Do you have any TÜV test reports of BONOSS forged BMW E21/E30 wheel spacers? and TÜV Rheinland as the world’s famous testing service companies, standing for safety and quality. To earn customers’ trust, which is also our confidence in product quality. BONOSS has fully passed over 66 ISO standard , TÜV authoritative tests, and all achieved excellent scores.BONOSS forged grade 12.9 extended wheel bolts have passed the 2,000,000 times limited life range test without damage, tensile strength≥1,282Mpa, ultimate tensile load≥152,000N, hardness (HV)≥395, NSS≥500H… By these authoritative test reports, BONOSS truly achieves the quality and professionalism expressed in the form of data and truly guarantees safety. We believe high standard quality management, together with authoritative certification reports is the best way to meet customer and regulatory requirements.

8. What are the benefits of the knurling design on my BONOSS forged 4 lug to 5 lug BMW E21/E30 wheel spacers?

The knurling design can enhance the aesthetics of the BMW E21/E30 wheel spacers by introducing an attractive pattern to the side surface. Knurling patterns can enlarge the side area so that it can contact more air, boost the heat dissipation effect, and reduce the internal stress caused by machining. That means improving the performance, strength, and durability of the BMW E21/E30 wheel spacers. BONOSS aims to provide wheel spacers with more additional functions, safer, higher performance, more professional design, and better installing experience, that is why we insist on independent manufacturing and continuous optimization of the design. 

9 . How do BMW E21/E30 wheel spacers affect handling?

Installing wheel spacers is a cost-effective way to increase the wheel track by pushing your wheels away from the hub. A wider track means better traction, allows you more stable turning, improving the handling of your vehicle, even driving in bad weather, it won’t lose its grip. Moreover, most track racing cars will use every millimeter of wheel space available in their design for the highest performance and the best exteriors. With BMW E21/E30 wheel spacers on, you can fill the gap in your fenders and get a more aggressive and powerful look. Meanwhile, BONOSS forged 4 lug to 5 lug wheel spacers are accurate to 0.02mm, a more perfect fit to the wheel hub, which means that high-speed vibration is reduced, and offers a smoother driving experience.

10.Why BONOSS choose and TUV to test the quality of the product?

and TÜV Rheinland as the world’s famous testing service companies, standing for safety and quality. To earn customers’ trust, which is also our confidence in product quality. BONOSS has fully passed over 66 ISO standard , TÜV authoritative tests, and all achieved excellent scores.BONOSS forged grade 12.9 extended wheel bolts have passed the 2,000,000 times limited life range test without damage, tensile strength≥1,282Mpa, ultimate tensile load≥152,000N, hardness (HV)≥395, NSS≥500H… By these authoritative test reports, BONOSS truly achieves the quality and professionalism expressed in the form of data and truly guarantees safety. We believe high standard quality management, together with authoritative certification reports is the best way to meet customer and regulatory requirements. If you need more details reports, please feel free to contact us.

PHOW TO INSTALL  SHIPPING RETURNS FEEDBACK ABOUT US PAYMENT 1.Remove original wheel bolts and wheel. 2. Place BONOSS Spacer on axle of vehicle (where the wheel was attached) making sure that the spacer is fully seated and flush with the hub. 
3. Fasten BONOSS spacer to car using attached special bolts. Carefully hand turn bolts making sure that they spin in easily so as to not cross-thread. Repeat with the rest of bolts.
4. With hand wrench, snug up the bolts in a star.
5. Tighten the wheel bolts in a star pattern using torque wrench set to factory specification.
6. Ensure no bolt heads come out spacer.
7. Place the wheel onto the spacer and carefully form up the wheel / spacer bolt holes and mounting hole.
8. Carefully hand turn wheel bolts and make sure that they spin in easily so as to not cross-thread.
9. Repeat step 8 with the rest of bolts.
10. With hand wrench, snug up the bolts in a star pattern.
11. Before fully tightening, turn the wheel and tire to check whether there have any noise or interference.
12. Use a torque wrench specified by the manufacturer to snug up the lug nuts in a star pattern. SHIPPING --We are not responsible for custom duty or import tax. --All Orders that Payment is received before 5pm Beijing Time M-F will be shipped the same day, if received after that time, they will be shipped the next business day, Saturday and Sunday orders will be processed and Shipped on Monday. --All orders are shipped by DHL/FedEx/UPS within the continental United States. Other international Shipping is available. You need to contact us confirming express method and accounting shipping costs. --Your purchase will be shipped via standard airmail, which normally takes 3-10 working days to arrive. --We will provide you with tracking numbers when the item is shipped out. RETURNS 14 days money back, buyer pays return shipping. FEEDBACK More and more customers believe in BONOSS's profession, so choose us. ABOUT US

BONOSS have been specializing in manufacturing the wheel parts more than 10 years. We supply wheel nuts/bolts(Locking/Classic...), wheel spacers(3mm-120mm, 1" inch etc.), custom wheel adapters 5 lug to 5 lug; 4 lug to 4 lug; 5 lug to 6 lug;6 lug to 8 lug... We refuse to use the wheel spacer made of casting aluminum and the bad quality bolt/stud, lug nut. We insist in using the forged aluminum alloy and high quality bolt/stud,lug nut(passed the 1 Million times Fatigue Test,etc.). We always insist on four concept respectively:

1.insistence on the service philosophy that safty is No.1 and creating the value for our customers. 2. insistence on designing and producing by ourselves in order to make sure the our product's stability of the quality and reliability. 3. insistence on the test from the third party. 4. insistence on requiring ourselves to live up to the highest standard among our rivals in order to make sure that our product will be in the perfect condition in our customer's hand (not only the best quality but also there's no scratch on our products which has been sent to our customers).

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  • Condition: New
  • Machining: CNC Machined
  • Items Included: Key, Lug Nut, Wheel Spacer
  • Wheel adapters kit included: 4 Adapters+20 Nuts+20 Stud conversion+12 Allen Bolts+4 Keys
  • Placement on Vehicle: Left, Right, Front, Rear
  • Vehicle Bolt Pattern: 4x100mm
  • Vehicle Hub Bore: 57.1mm
  • Manufacturer Warranty: 10 Year
  • Inside Diameter: Car 57.1mm to Rim 72.5mm
  • Item fit: BMW E30 Convert BMW 5 Lug Rims
  • Number in Pack: 4
  • Center bore: 57.1mm to 72.56mm or Customized
  • Wheel Side: PCD 5x120 Center 72.56mm
  • Features: TÜV Rheinland
  • Manufacturing: Forged
  • Finish: Hard Anodized
  • Hub Bore: Car 57.1mm to Rim 72.5mm
  • Other Part Number: 4x100 to 5x120 Wheel Adapters
  • Hubcentric: 0.02mm-0.05mm
  • Color: Black
  • Manufacturer Part Number: 4x100 To 5x120 Adapters
  • Centering: Car 57.1mm to Rim 72.5mm
  • Material: Aluminum 7075-T6 Alloy
  • Studs: 12.9 Grade 12mm*1.5
  • Superseded Part Number: Wheel Adapters
  • Thread Size: 12x1.5
  • Bolt Pattern: Car 4x100 to 5x120 Wheel
  • Car side: PCD 4x100 Center Bore 57.1mm
  • Brand: BONOSS
  • Type: Wheel Adapter
  • Interchange Part Number: 4 Lug To 5 Lug Wheel Adapters
  • OE/OEM Part Number: 4 to 5 Lug Wheel Adaptor
  • Surface Finish: Hard Anodized
  • Country/Region of Manufacture: China
  • Outside Diameter: Car 57.1mm to Rim 72.5mm
  • Spacer Thickness: 18 mm

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