Knowledge Base & Buying Guides | Wheels, Fitments & 4x4 Tuning

Wheels 'N Customs Knowledge Base & Frequently Asked Questions

The most comprehensive reference work in the Benelux for alloy wheels, 4x4 off-road fitments, bodywork & bodykits, suspension & lowering kits, fitment calculations, TPMS sensors and brand guides. Click a category to view.

Wheels N Customs Nijkerk Knowledge Base Logo

Honest Advice & Expert Installation in Nijkerk:
At Wheels 'N Customs you will find not only information, but also direct support. Our specialists check the exact PCD/bolt pattern, J width, ET value and brake calliper clearance with every order. You can order individual wheels, lowering springs and coilover kits from us, but also complete wheel and tyre sets including fitting, balancing and programmed TPMS sensors. In addition, we fit body parts, bodykits, exhaust systems and suspension daily in our professional workshop in Nijkerk!

1. Technical Guides & Troubleshooting
Calculator
Fitment Calculator (ET & J Value)

Calculate live the change in ET value, J width, rolling circumference and the exact inboard and outboard shift relative to the shock absorber and the wheel arch.

Open Fitment Calculator →
Diagnosis
Solving Vibrations in Steering Wheel or Seat

Is your car not driving perfectly smooth at 100-130 km/h? Discover the difference between front- and rear-axle vibrations, radial runout, spigot rings and Road Force® balancing.

Read Guide & Diagnosis →
Repair
Preventing & Repairing Wheel Damage

Everything about repairing kerb rash, paint damage from road salt and hairline cracks. Includes an explanation of CNC diamond cutting and MFS rim protectors.

Read Damage Guide →
Fitment
ET Value, J Width & Bolt Pattern Explained

Calculate how far your wheels will poke out. Everything about Einpresstiefe (ET), rim width (J), PCD bolt patterns and hub centring (CB).

View Fitment Guide →
Size Chart
Tyre Width per Wheel (J Value Table)

Which tyre width fits which wheel? View our complete correspondence table from 5.0J to 14.0J including advice for ideal fitment and tyre stretch.

View Size Chart →
Tyre Index
Load Index & Speed Rating for Car Tyres

How much weight and speed is your tyre allowed? See the complete correspondence tables for load capacity (load index) and speed rating.

View Index Table →
Calculator
Rolling Circumference Calculator & Speedometer Error

Instantly calculate the exact difference in diameter, single/total sidewall height, ground clearance and speedometer deviation with a new tyre size.

Open Calculator Tool →
Electronics
TPMS Sensors Relearn & Faults

Is your tyre pressure warning light on? Read about the difference between Direct and Indirect TPMS, APK requirements, battery life and cloning sensors with a new wheel set.

Read TPMS Guide →
Maintenance
Cleaning Wheels without Paint Damage

Safely cleaning matte black, polished (Diamond Cut) and chrome wheels. The dangers of acid-based cleaners and applying or sealing protective coatings.

View Maintenance Guide →
Custom
Bolt Pattern Adapter System X & Wheel Spacers

How do you choose the right wheel spacers or bolt pattern converters for your vehicle? Including technical requirements and German TÜV standards.

Read about Bolt Pattern Adapters →
2. Customer Service & Service Guides
Service
Customer Service & Contact

Do you have questions about your order or want personal advice? Contact our wheel and tyre specialists directly.

Go to Customer Service →
Privacy & GDPR
Order Queries & Privacy Protocol

Read why we handle order and personal data only via your original invoice email to protect your file.

View Privacy Protocol →
Payment Options
Payment Methods & Terms

Information about all our secure payment methods: iDEAL, Bancontact, Credit Card, PayPal, SEPA Bank Transfer, Belfius, KBC and Klarna.

View Payment Options →
Shipping
Shipping & Delivery

Everything about our careful packaging, free shipping from €250,-, delivery times and Track & Trace service throughout the Netherlands and Belgium.

View Shipping →
Returns
Returns & Right of Withdrawal

Instructions for returning items, return conditions, restocking fees and registering returns in accordance with EU guidelines.

View Return Conditions →
B2B Dealer Network
B2B Dealer Application & Wholesale

Register your car business as a B2B dealer for exclusive business margins, free shipping from €250,- ex. VAT and one central purchasing platform.

Dealer Application →
Workshop
Fitting Service in Nijkerk

Information about our professional workshop in Nijkerk. Scratch-free fitting of wheels, suspension kits, exhausts & bodykits.

View Fitting Service →
Warranty
Warranty & Complaints Handling

Read more about the factory warranty on our wheels, paint warranties, TÜV certificates and how we handle complaints carefully and quickly.

View Warranty & Complaints →
Damage
Damage Procedure & Transport Damage

Have you incurred transport damage? View our clear damage procedure and the required photo documentation for swift processing.

View Damage Procedure →
Processing Ban
Incomplete or Incorrect Delivery

Is a part missing or has the wrong item been delivered? Read all about the processing ban and how to report this quickly.

View Procedure →
Fitment Check
Part Doesn't Fit?

Does your ordered part or wheel seem not to fit? Stop installing immediately and check our instructions for submitting photos.

View Fitment Check →
3. Bodywork, Bodykits & Styling Brands (Webshop)
Aerodynamics
Maxton Design Logo
Maxton Design

Browse our complete webshop range of ABS front splitters, diffusers, spoilers and side skirts.

View Maxton Design →
Custom Styling
Ingo Noak Tuning Logo
Ingo Noak Tuning

Browse all German hand-built ABS bumper spoilers, cup side skirts and rear diffusers.

View Ingo Noak Tuning →
German Tuning
Rieger Tuning Logo
Rieger Tuning GmbH

View all German top-quality RS/S-look rear diffusers, front splitters and side skirts.

View Rieger Tuning →
OEM Styling
OneWay Automotive Logo
OneWay Automotive

View all battery/headlight covers (VW T5.1/T6), fender flares and bonnet guards.

View OneWay Automotive →
German Tuning
RDX Racedesign Logo
RDX Racedesign GmbH

View all VARIO-X 3-piece front splitters, rear diffusers and side skirts from Germany.

View RDX Racedesign →
Stainless Steel Styling
Misutonida 4x4 Logo
Misutonida 4x4 Italian Style

View all Italian stainless steel bull bars with EC certificate, side bars and rear bumpers.

View Misutonida 4x4 →
4. Suspension, Lowering Springs & Coilovers
Knowledge Base
Lowering Your Car & Coilovers

The ultimate guide to lowering your car, the differences between springs and coilovers, and the importance of 3D alignment in Nijkerk.

View Lowering Guide →
Sport Springs
AP Sportfahrwerke Logo
AP Sportfahrwerke Springs

German quality lowering springs for a sporty look, improved road holding and maintained comfort.

View AP Springs →
Coilovers
AP Sportfahrwerke Logo
AP Sportfahrwerke Coilovers

Stepless height-adjustable coilovers from Germany with an excellent price-performance ratio.

View AP Coilovers →
Performance Springs
Eibach Logo
Eibach Pro-Kit & Sportline Springs

World-renowned progressive lowering springs for the perfect balance between dynamic handling and comfort.

View Eibach Springs →
Coilovers
Eibach Logo
Eibach Pro-Street-S Coilovers

Stainless steel coilovers from Eibach for maximum durability and a rust-free stainless finish.

View Eibach Coilovers →
High-End Suspension
KW Suspensions Logo
KW Suspension (Variant 1, 2, 3, 4 & DDC)

The global benchmark in stainless steel height- and damping-adjustable coilovers & shock absorbers.

View KW Suspension →
Lowering Springs
KW Suspensions Logo
KW Lowering Springs

Height-adjustable springs (HAS) and lowering springs for optimal stance on original adaptive dampers.

View KW Springs →
German Quality
H&R Logo
H&R Spezialfedern Springs

High-quality German lowering springs developed for optimal steering precision and a tight wheel-arch fitment.

View H&R Springs →
Coilovers
H&R Logo
H&R Monotube & Twin-Tube Coilovers

Pure motorsport DNA for the road with steplessly adjustable H&R coilovers.

View H&R Coilovers →
OEM Performance
Bilstein Logo
Bilstein Coilover Kits & B6/B8 Shock Absorbers

Gas pressure shock absorbers and B14/B16 coilover kits from Bilstein for uncompromising driving performance.

View Bilstein Guide →
Custom Tuning
ST Suspensions Logo
ST Suspensions (ST X, XA & XTA)

Powered by KW Technology: affordable coilover kits with optionally adjustable damping and aluminium top mounts.

View ST Suspensions →
5. JDM, Performance & Flow Formed Brands
JDM / Tuning
Japan Racing Wheels Logo
Japan Racing (JR-Wheels)

JR3, JR11, JR28, JR30, SL Flow Formed series and Custom CNC drilling for the perfect fit.

View Japan Racing Guide →
Hybrid Forged
Concaver Wheels Logo
Concaver Wheels

CVR1 through CVR9 series. Hybrid Forged technology with 4 levels of deep custom concavity.

View Concaver Guide →
JDM Track
Enkei Wheels Logo
Enkei Wheels

RPF1, Raijin, TS-10, NT03RR. Japanese Formula 1 heritage with patented MAT Flow Forming.

View Enkei Guide →
FFR Motion
Ispiri Wheels Logo
Ispiri Wheels

FFR1 through FFR8, ISR1 through ISR10. British FFR Motion Flow Forming technology and Pure Concave styles.

View Ispiri Guide →
Flow Formed
Forzza Wheels Logo
Forzza Wheels

Oregon, Titan, Boss, Oregon HD. Deep concave profiles and reinforced Heavy Duty van wheels.

View Forzza Guide →
Modern Stance
79Wheels Seventy9 Logo
79Wheels (Seventy9)

HV2, SV-A, SV-B, SV-C series. Trendsetting designs with high-quality finishes and perfect fitments.

View 79Wheels Guide →
US Stance
Rotiform Wheels Logo
Rotiform Wheels

LAS-R, RSE, BLQ, CVT, Aerodisc. The absolute global trendsetter in custom wheels and stance.

View Rotiform Guide →
V-FS Series
Veemann Wheels Logo
Veemann Wheels

V-FS23, V-FS39, VC354. Patented lip design technology without spokes on the rim edge for greater visual impact.

View Veemann Guide →
German Legend
BBS Wheels Logo
BBS Wheels

BBS RS, LM, CH-R, CI-R. The legendary German motorsport and forged wheel pioneer.

View BBS Guide →
Flow Forged
Wheelforce Wheels Logo
Wheelforce Wheels

HE.1-FF, CF.2-FF. German Flow Forged wheels with extremely deep concavity and lightweight constructions.

View Wheelforce Guide →
Track / Motorsport
APEX Wheels Logo
APEX Wheels

ARC-8, EC-7, VS-5RS. Ultralight track day wheels specifically developed for BMW, Porsche and Mustang.

View APEX Guide →
Ultralight
Motec Wheels Logo
Motec Wheels

MCR2 Ultralight, MCR3 Ultimate, MCR4. Renowned German lightweight wheels for motorsport.

View Motec Guide →
UK Performance
Riviera Wheels Logo
Riviera Wheels

RV120 through to RV135 range for passenger cars, sporty saloons and crossovers.

View Riviera Guide →
Heavy Duty 4x4
Riviera Xtreme Logo
Riviera Xtreme

Reinforced Commercial & Off-Road wheels for heavy-duty vans, pickups and SUVs.

View Riviera Xtreme →
UK Stance
1AV Wheels Logo
1AV Wheels

ZX1, ZX2, ZX10 series. Popular British stance designs with excellent fitments.

View 1AV Guide →
Custom Design
3SDM Wheels Logo
3SDM Wheels

0.01, 0.05, 0.06, 0.09. Iconic and distinctive British custom wheels.

View 3SDM Guide →
Motorsport
Sparco Wheels Logo
Sparco Wheels (by OZ)

Assetto Gara, Assetto Gara HLT, Assetto Corsa. Italian rally and track heritage.

View Sparco Guide →
German Racing
TEC Speedwheels Logo
TEC Speedwheels

GT6, AS4, GT7. German motorsport-inspired alloy wheels with TÜV approval.

View TEC Guide →
Lightweight
STROM Wheels Logo
STROM Wheels

STR1, STR2, STR3. Advanced lightweight wheels for German sports cars.

View STROM Guide →
Deep Concave
AXE Wheels Logo
AXE Wheels

EX8, EX12, EX14. Wide concave profiles for the ultimate stance and VIP look.

View AXE Guide →
6. 4x4 Off-Road, Truck & Overland Brands
4x4 & Truck
Fuel Off-Road Wheels Logo
Fuel Off-Road

Covert, Rebel, Vapor, Dually and Forged wheels. World leader in negative ET values and truck fitments.

View Fuel Guide →
Bead Grip®
Method Race Wheels Logo
Method Race Wheels

MR305 NV, MR312, MR701 with patented Bead Grip® technology for extreme off-road performance.

View Method Guide →
Baja 4x4
KMC Wheels Logo
KMC Wheels

KM545 Brawn, KM542 Impact and XD Rockstar. Legendary American 4x4 & Overland wheels.

View KMC Guide →
Overland / Camper
Black Rhino Wheels Logo
Black Rhino Wheels

Arsenal, Sentinel, Tank. Indestructibly high load ratings for Mercedes Sprinter campers and 4x4's.

View Black Rhino Guide →
US Heritage
American Racing Logo
American Racing

Torq Thrust, Baja, Outlaw II. The pioneer of American Muscle Car, Truck and Vintage Hot Rod wheels.

View American Racing →
7. Motorsport, Retro Cult, VIP Luxury & German OEM
Hybrid Forged
Vossen Wheels Logo
Vossen Wheels

HF-1 to HF-7, CV Series & Forged. The absolute global benchmark in luxury concave wheels.

View Vossen Guide →
Formula 1 Heritage
OZ Racing Logo
OZ Racing

Ultraleggera, Superturismo, Alleggerita. Italian F1 & WRC legend with patented HLT technology.

View OZ Racing Guide →
Italian F1
Fondmetal Wheels Logo
Fondmetal Wheels

Fondmetal 9RR, 9EVO, 9ST, Inspired & Forged. Italian Formula 1 heritage with ultra-light 9RR wheels.

View Fondmetal Guide →
F1 Heritage
Fittipaldi Wheels Logo
Fittipaldi Wheels

F-10, F-11, FT-Series Off-Road & Forged. Formula 1 world champion heritage for street and 4x4.

View Fittipaldi Guide →
Italian Dedicated
GMP Italia Logo
GMP Italia

Angel, Atom, Drake, Gunner, Specter. Italian design specifically engineered for Audi, BMW, Mercedes and Porsche.

View GMP Italia Guide →
Designed by OZ
MSW Wheels by OZ Logo
MSW Wheels (by OZ)

MSW 25 to 80 series. Genuine OZ Racing Italian engineering and ECE-certified exemption.

View MSW Guide →
Rally Cult
Fifteen52 Wheels Logo
Fifteen52

Turbomac, Integrale, Tarmac, Traverse HD. Inextricably linked with the Ken Block Gymkhana cult.

View Fifteen52 Guide →
BSX Retro
Lenso Wheels Logo
Lenso Wheels

Lenso BSX, Conclave, Eagle, Venom, MAX 4x4. The world-famous BSX retro mesh specialist.

View Lenso Guide →
Retro Mesh
Dare Motorsport Logo
Dare Motorsport

Dare RS, DR-RS, F1 to F20 series. Famous retro mesh wheels with deep polished lips.

View Dare Guide →
VIP Luxury
Asanti Black Label Logo
Asanti Black Label

ABL-12 to ABL-38 series. Exclusive American VIP luxury up to 24 inch for supercars and SUVs.

View Asanti Guide →
US Custom
Foose Wheels Logo
Foose Wheels

Foose Legend, Impress, Nitrous. Designed by legend Chip Foose for V8 muscle cars and hot rods.

View Foose Guide →
Big Wheels
DUB Wheels Logo
DUB Wheels

DUB Baller, Shot Cutz. The iconic American pioneer of large diameters (22" to 30") and Chrome.

View DUB Guide →
Rotary Forged
ESR Wheels Logo
ESR Wheels

ESR CS, SR and RF Rotary Forged series. Exclusive American stance styles with wide lips.

View ESR Guide →
German Concave
Art-Form Logo
Art-Form (artFORM)

AF101 to AF303 series. Flow Formed German precision for BMW, Audi, Mercedes and Porsche.

View Art-Form Guide →
German OEM
Borbet Wheels Logo
Borbet Wheels

Borbet A, B, BY, GTX, Commercial. Original equipment German quality with ECE-certified exemption.

View Borbet Guide →
BMW Specialist
Breyton Design Logo
Breyton Design

Fascinate, Race GTS, Spirit II. Exclusively engineered for BMW M-Performance and Porsche.

View Breyton Guide →
ECE Approved
Brock Logo
Brock Alloy Wheels

B24 to B43 series. 100% Made in Europe with up to 5 years paint warranty for extreme winter resistance.

View Brock Guide →
German Quality
RC-Design Logo
RC-Design Wheels

RC17, RC27, RC32, RC34 series. The well-known German sister line of Brock with broad ECE type approvals.

View RC-Design Guide →
OEM+ Luxury
Carbonado Wheels Logo
Carbonado Wheels

CONE, WEALTHY, DIAMOND, FAME series. Two-tone polished finishes at sharp prices.

View Carbonado Guide →
ECE Value
Carmani Wheels Logo
Carmani Wheels

Carmani 13 Twin, 15 Compakt, 17 Fritz, 20 Ludwig. Affordable German ECE quality.

View Carmani Guide →
German Tuning
Oxigin Wheels Logo
Oxigin Wheels

Oxigin 14 Oxrock, 18 Concave, 20 Attraction. Eye-catching German tuning designs with colourful accents and deep concavity.

View Oxigin Guide →
8. Brand & Manufacturer Knowledge Bases
Exhaust systems
Milltek Sport Logo
Milltek Sport Dealer & Installation

Knowledge base about Milltek Cat-back, OPF-back and downpipes. Includes information on valved systems and workshop installation in Nijkerk.

View Milltek Guide →
Aerodynamics
Maxton Design Logo
Maxton Design Netherlands & Belgium

Official knowledge base guide on ABS front splitters, diffusers, spoilers and side skirts. Includes installation options in Nijkerk.

View Maxton Knowledge Base →
Custom Styling
Ingo Noak Tuning Logo
Ingo Noak Tuning WNC

Knowledge base about German hand-built ABS bumper spoilers, cup side skirts and aggressive rear diffusers.

View Ingo Noak Knowledge Base →
German Tuning
Rieger Tuning Logo
Rieger Tuning GmbH

Official Knowledge Base guide on RS/S-Look rear diffusers, front splitters, side skirts and ABE/TÜV papers.

View Rieger Knowledge Base →
4x4 Stainless Steel
Misutonida 4x4 Logo
Misutonida Automobile 4x4

Italian stainless steel bullbars with EC certificate, side bars and rear bumpers for pick-ups, SUVs and vans.

View Misutonida Knowledge Base →
OEM Styling
OneWay Automotive Logo
OneWay Automotive

Battery/headlight covers (VW T5.1/T6), fender flares, body claddings & bonnet guards, specially made from OEM ABS plastic.

View OneWay Knowledge Base →
German Tuning
RDX Racedesign Logo
RDX Racedesign WNC

Patented VARIO-X 3-piece front splitters, rear diffusers, headlight eyebrows and side skirts from Germany.

View RDX Knowledge Base →
9. WNC Authority, Vision & Expert Guides
Market Leader
Hardware Car Styling & Tuning Parts

Discover why we are the highest-rated specialist in the Benelux for premium wheels, bodykits and suspension. 100% focus on hardware.

View Our Authority →
Buying Guide
Webshop vs. Fitting Centre

Avoid bad online purchases. Read about the dangers of automatic licence-plate checks and the importance of a physical specialist and fitting centre.

Read the Guide →
Company
About Wheels 'N Customs

Read more about our history, vision, the 4 guarantees and our professional workshop expertise in Nijkerk.

View About Us →
250,000+ Items Filter by stock, version, year of manufacture & type
Physical Workshop 2–5 fitting jobs daily
Nijkerk (Riddererf 7 C) Collection & Tailored Advice
100% Fitment Guarantee Checked by specialists

Personal Advice or Book an Appointment in Nijkerk?

Visit our physical shop and workshop at Riddererf 7 C in Nijkerk (3861PT), or contact our wheel and styling specialists directly.

Contact Us →

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