Brock B21 Matt Black Polished
18 Inch Set of 4 alloy wheels
Add precision and elegance to your car with the 18" Brock B21 in Matt Black Polished. Manufactured in Germany, this wheel is designed to deliver reliable performance and standout visual appeal with a flawless, factory-quality finish.
Whether you're upgrading your daily vehicle or enhancing a premium model, the B21 in Matt Black Polished offers the confidence of engineered quality and timeless design.
- Crafted in Germany with exacting standards
- Durable, corrosion-resistant Matt Black Polished finish
- TÜV approved for safety, strength, and road performance
- Lightweight design supports better ride quality and handling
- Suitable for a wide variety of vehicle types and driving conditions
The B21 is a smart upgrade that combines German manufacturing expertise with refined, everyday usability and long-term style.
If you have any questions at all, please call our expert team for Free from your Mobile on 0333 800 8000 or Free from your Landline on 0800 130 3400. Our lines are open 9am to 6pm (Monday to Friday) and 9am to 4pm (Saturday).
Add precision and elegance to your car with the 18" Brock B21 in Matt Black Polished. Manufactured in Germany, this wheel is designed to deliver reliable performance and standout visual appeal with a flawless, factory-quality finish.
Whether you're upgrading your daily vehicle or enhancing a premium model, the B21 in Matt Black Polished offers the confidence of engineered quality and timeless design.
- Crafted in Germany with exacting standards
- Durable, corrosion-resistant Matt Black Polished finish
- TÜV approved for safety, strength, and road performance
- Lightweight design supports better ride quality and handling
- Suitable for a wide variety of vehicle types and driving conditions
The B21 is a smart upgrade that combines German manufacturing expertise with refined, everyday usability and long-term style.
If you have any questions at all, please call our expert team on 0800 130 3400 Free from your Landline or Mobile. Our lines are open 9am to 6pm (Monday to Friday) and 9am to 4pm (Saturday).
| Brand: | Brock | |
| Model: | B21 | |
| Width: | {[{ wheelWidth }]} | |
| Diameter: | 18 Inch | |
| Bolt Pattern: | Best Fit Supplied | |
| Offset: | Best Fit Supplied | |
| Colour: | Matt Black Polished | |
| Style: | 10 Spoke |
Check Compatibility
Alloy Wheels Only
Set of 4 x 18" Brock B21 Matt Black Polished & Fitting Kit
All sets of wheels include four 18" Brock B21 Matt Black Polished and a free fitting kit. Every order is fitment checked and supplied with the correct fitting kit. When you receive your wheels, all you need to do is fit your tyres to the wheels then fix them to your vehicle with the fitting kit supplied.
Wheel & Tyre Packages
4 x 18" Brock B21 Matt Black Polished alloy wheels, fitted tyres & fitting kit
All packages include four 18" Brock B21 Matt Black Polished, 4 tyres and a free fitting kit. They are fully fitted and balanced to the highest standards. Every order is fitment checked and supplied with the correct fitting kit. When you receive your package, all you need to do is fix them to your vehicle with the fitting kit supplied.
- All Tyres professionally fitted to the Alloy Wheels
- All Wheels & Tyres are professionally inflated to the correct pressure
- All Wheels & Tyres are fully balanced with the latest balancing equipment
- All Wheels & Tyres are balanced with top quality Trax weights
- All Wheels & Tyres are packaged to the highest standard
- All Wheels & Tyres are fully insured during shipping
Delivery Information
We offer a full international delivery service
We Can Deliver Your Wheels Anywhere in the World
We deliver to all countries around the world using several different couriers to help keep our delivery prices as low as possible for our customers. Our international delivery is an express service, with most orders reaching their destination in a matter of days, making our service the best and most reliable in the country.
With over 20 years of experience supplying alloy wheels and tyres throughout Europe and around the world, you will be assured your order will be shipped securely and as quickly as possible. Our delivery service fully insures your order for peace of mind.
We offer an international delivery service using TNT, DPD, UPS, FedEx and many other world leading delivery companies. You can be assured that your goods will be handled with care.
- Packaged to the highest standard
- All wheels protected front and back
- Tightly shrink-wrapped and easy to open
- Handled with care
- Quality control checked
- Fully insured and trackable
Ordering 18 Inch Brock B21
Quick and easy ways to order your wheels and tyres
Online Checkout Via Credit or Debit Card
You can order online via credit or debit card 24 hours a day, 7 days a week. All online orders are fitment checked and verified before they are sent. We do not charge any surcharges for credit card payments.
Serious about security
Our SSL certificate has extended validation with 128-bit to 256-bit encryption. Your Address bar will display green in most new browsers for peace of mind.
Online Checkout Via PayPal
With our PayPal checkout integration, you can make PayPal payments quickly, easily and more securely - for free. PayPal makes buying from wheelbasealloys.com easy because you don't need to re-enter your debit or credit card details when you buy.
PayPal lets you pay in a few easy clicks. No hassle of getting out your wallet or typing your card details. All you need is your email address for quick, easy payment.
Telephone Via Credit or Debit Card
Our highly trained sales advisors are here to help. Available 6 days a week they can advise and help you find the wheels and tyres you want. Our dedicated sales team will double-check the alloy wheels are right for your car. Once you are ready to purchase our sales advisors can take all of your details and securely process your order.
Free: 0800 130 3400 Free: 0333 800 8000
International Bank Transfer
Ideal for international payments, if you do not have a credit card or PayPal account. To create a bank transfer, you'll need to submit instructions to your bank. Please contact us for our account information.
Call: 0044 161 628 0000 Email: support@wheelbasealloys.com
14 Day Money Back Guarantee
Money-back guarantee will only be accepted within 14 days of delivery.
Refund will be less the transport costs both ways.
Goods must be in perfect condition.
Refunds only returned to the original credit card used.
Refund Policy
Returns are accepted within 14 days for any unused items. To return the item please contact our customer services. You must return the item in the same condition it was received in. Please ensure that the item(s) are packaged to a suitable standard protecting all surfaces. Providing the purchase is cancelled within 14 days Wheelbase will pay the return postage costs.
Customer services: 0333 800 8000
Frequently Asked Questions
18" Brock B21 Matt Black Polished Alloy Wheels
Wheelbase is the UKs leading alloy wheels and tyre store. Over the years our customers have asked a variety of questions which we have answered below to help you understand a little more about Wheelbase and our alloy wheels and tyres website. If you need any further help or assistance please contact our team.
Our phone lines are open: 9am to 6pm (Monday - Friday) and 9am to 4pm (Saturday).
Have a Question?
Contact Us Via Email
Contact Us
Contacting us couldn't be simpler!
Wheelbase have a dedicated team willing and ready to take your enquiries. Our goal is to respond to you as fast as possible. During our opening times, the fastest way to contact us is via phone. We also have ‘Live Chat’ available, simply click the icon in the top navigation bar to get started. You can also visit our alloy wheels showroom in Manchester. We can deliver your alloy wheels and tyres anywhere in the world, please check our ‘Delivery Information page for further information.
Our phone lines are open: 9am to 6pm (Monday - Friday) and 9am to 4pm (Saturday).
Call Us For Free
Lines Open Now: Call Our Expert Team
Landline Free: 0800 130 3400
Mobile Free: 0333 800 8000
Visit Our Showroom
Wheelbase, Unit 1, Sun Building, Stockfield Road, Chadderton, Oldham OL9 9LU
We have a large showroom near Manchester, packed with all the latest wheels and tyres for your car. The site we operate from is over 2 acres with over 20,000 square feet of showroom, workshop and warehouse. Car parking is not a problem, we have over 40 spaces.
We offer free fitting on all alloy wheels and tyres when you visit our showroom.
You can buy alloy wheels online, or you can visit our showroom, and we'll help you pick the right alloy wheels and tyres for your car. We provide a free fitting service for all our showroom customers. Contact our team and book some time with one of our experts or simply turn up on the day, and we'll be happy to help. We have over 30,000 Alloy Wheels and Tyres under one roof.
Opening Times
Opening times and delivery estimates: Open 6 days a week
* Orders placed before 4pm will be dispatched same day subject to stock availability. If your stock needs to be ordered in, we will notify you via text and email shortly after placing your order with an updated delivery estimate.
Wheelbase Alloys Latest Reviews
Let everyone know how easy it was to buy our alloy wheels
We pride ourselves on excellent customer service and product knowledge, and thankfully our customers agree. If you have recently purchased a set of new alloy wheels from Wheelbase, please leave a review or email us your feedback.
Brilliant, speedy service 10/10
Edward Gibbon
Written: 11th June 2026
Really great wheels.look the business
Steven Wood
Written: 11th June 2026
Very helpful and professional service, would highly recommend
Steven Mcbryan
Written: 10th June 2026
Have order from here a couple of times over the years and can say it's amazing service and very well prices
Gareth Davies
Written: 10th June 2026
Great service i would definitely use wheel base again again
Jamie Lee
Written: 10th June 2026
Excellent technical advice on tire size(almost ordered wrong size from another company) Service and advice very professional. I was under a massive time pressure due to a trip to Europe after being let down by another company . Stephen at wheelbase supplied constant updates and tracking to ensure order arrived on time great service.
Michael Shaw
Written: 10th June 2026
Very quick and easy
Aled Hughes
Written: 10th June 2026
Great service kept upto date on progress with my wheels and tyres, great service 100% could not be any happyer.thank you so much, would reccomend to any one.
KEITH BENNETT
Written: 10th June 2026
Very pleased.great service
Steven Hardiman
Written: 10th June 2026
Brilliant service, plenty of updates and messages, wheels fit perfect
Connor Jarman
Written: 10th June 2026
Excellent service well recommended
Colin Lovett
Written: 10th June 2026
Very satisfied with my alloy wheel purchase. Communication prior to the delivery of the wheels was great and was constantly updated on the progress of the order shipment. The wheels arrived on time and as expected with fitted tyres. The wheels fitted perfectly and all necessary fitting items were included. I would highly recommend Wheel Base. The wheels look fantastic on my Van. Thanks Wayne 😎
Wayne King
Written: 10th June 2026
Exelent
Elena Dimova
Written: 10th June 2026
Received in good condition, Well packed, Thanks
Simon Preest
Written: 10th June 2026
Excellent service fast delivery.
Stewart McCarroll
Written: 10th June 2026
Very happy with my purchase, this is the second time I’ve ordered from this company and both times have went very smoothly!
Tyler Birnie
Written: 10th June 2026
Honestly delivery time not as quick as I have expected but with very good contact and information from sales support team. Fully satisfied with a product. Convenient financ system. Gladly will return to make perches again and will recommend to others.
Lukas Then
Written: 10th June 2026
Appreciate this company a lot very good quality and very good customer service, highly recommend if you want a decent thing on the road
Faten Alkourde
Written: 10th June 2026
Really pleased with my wheels, I had to wait a little bit longer for delivery,as my wheels had to be made. But very pleased with how Wheel Base keep me informed through the hole prosses. Thank you 😊
Amanda Emery
Written: 10th June 2026
Was recommend to Wheelbase by a friend & Really pleased with my wheels, Ordered on the Monday Received early Sat morning, Would highly recommend, I will definitely use again, Tjank you Wheelbase 10/10 👍
Paul Pearce
Written: 10th June 2026
Really pleased with the experience of purchasing my new wheels from Wheelbase,excellent product and excellent delivery and service.
Gary Mews
Written: 10th June 2026
Very helpful throughout, guided me through the process and ensured I had the correct wheels and fitting products. Wheels look amazing. I purchased the wheel and tyre bundle. Everything was delivered in good order and in a timely manner.
Raymond Raymond
Written: 10th June 2026
Absolutely seamless experience from choosing the wheels required to placing the order, the delivery was prompt as well. Cant fault the service & quality of the product. Would recommend & purchase from again on the future.
CARL BERRY
Written: 10th June 2026
Everything arrived in an incredibly quick fashion in amazing condition and fits as they stated. They provided updates and all the information required at every step of the process.
Liam Chittenden
Written: 10th June 2026
Amazing Service, I'd highly recommend and I will be back for my next order; quick, easy, reasonably priced and professional throughout.
Ricci Lowe
Written: 10th June 2026
Wheels are lovely great quality
Donna Day
Written: 08th June 2026
Fast delivery and all fitted :)
Maryam Clausen
Written: 08th June 2026
Excellent service kept up today on order well packaged would definitely recommend and use this company again
James Trick
Written: 08th June 2026
Love you guys will recommend to anyone. website is spot on, customer service is great and the packaging was spot on! 😎🤙🏻
Jake white
Written: 08th June 2026
Best as shown
Sandeep Singh
Written: 08th June 2026
Very easy to deal with making sure you have the right wheels for you car, wheels came they was spotless, clean and very well packed to insure no damage,
Richard Haines
Written: 08th June 2026
Everything was fast,the wheels arrived after a week, in a perfect condition :)
Mate Toth
Written: 08th June 2026
Couldn’t be happier with the wheels I got. Looks absolutely stunning on my Golf MK 7. Would defo recommend
Steve Scoggins
Written: 08th June 2026
Good service straight to my door nice wheels well pleased.
Stuart Watson
Written: 08th June 2026
Really pleased with the wheels, there was a slight issue with the bolts which was put right in 24hours great customer service.
Bill Tindle
Written: 08th June 2026
Top communications from the start to the end of the deal. The wheels are absolute top quality, really happy with the whole experience, can’t fault it!!!
Justin Wilson
Written: 08th June 2026
Wheels look perfect arrived on time and was nicely boxes service and information from dispatch was wonderful
Lewis Green
Written: 08th June 2026
⭐⭐⭐⭐⭐ Excellent Service! I had a great experience with Wheelbase Alloys. From start to finish, their communication was clear, professional, and very helpful. Even though there was a small issue with the wheels on delivery, the team handled it quickly and fairly, which really shows their commitment to customer satisfaction. The wheels themselves look amazing and the overall quality is exactly what I was expecting. I truly appreciate the support and would definitely recommend Wheelbase Alloys to anyone looking for quality wheels and reliable service.
Andre Correia
Written: 07th June 2026
Amazing, fast delivery, good packaging
Jessica Armsworth
Written: 07th June 2026
Highly recommended. This is my third purchased and gets better and better every time. High quality alloys. Will be purchasing again
Mostafa
Written: 07th June 2026
From start to finish. This company with a special mention to Aaron, amazing customer service, from me ordering the wrong type of wheels to correcting my mistake, excellent communication throughout the whole process, delivering my wheels on time, sourcing tyres due to supply issues, Aaron and wheelbase warrant their 5 star rating. Thank you
Shawn Hall
Written: 07th June 2026
Purchased calibre tsport wheels. They look great on transit custom. Good quality product. Good price. Wheelbase kept me informed about order. Quick delivery.
Andy Rocket
Written: 07th June 2026
This business was recommended to us and I can certainly do the same to anyone wanting first class service, personal attention with a professional knowledge of what they are selling. Thank you Raza for your expert advice in helping us out with your extensive range of wheels and the suitable tyres. Must admit they look great!
Jules and Maz Vant
Written: 07th June 2026
Absolutely amazed with this company I ordered on the Friday it arrived on the Tuesday wheels came undamaged and in perfect condition fitting kit is very useful and they fit amazing
Megan Hollinshead
Written: 07th June 2026
Great service
Chris Powles
Written: 07th June 2026
Great communication and updates regarding my order
Ben Alsina
Written: 07th June 2026
great service
Martin Heffer
Written: 07th June 2026
Excellent all round service...a joy to deal with
Jason Adams
Written: 07th June 2026
Yet another fantastic set of wheels from WHEELBASE ALLOYS .my third set from this company over the many years. As always, perfect fit and really refresh the look of the car . The last ones from this company are at least 5 years old and still mint . The way that you can punch in the car details and it gives you all the potential wheels fitting your car , it just takes away any chance of ordering a set that will not fit. Absolutely love the new look and stance , looks more aggressive and mean . Thanks again WHEELBASE ALLOYS
Dave Cunningham
Written: 07th June 2026
Great service and Great set of wheels and tyres i know where to come next time fast delivery
Steven Gill
Written: 07th June 2026
These B21 alloy wheels are available in the following bolt pattern: 4x108 .
Wheelbase have built the most accurate fitment database in the wheel and tyre industry. We guarantee that the correct bolt pattern will be supplied for your vehicle with many checks being carried out to ensure an issue free buying experience.
These B21 alloy wheels are available in the following offset: .
Wheelbase have built the most accurate fitment database in the wheel and tyre industry. We guarantee that the correct offset will be supplied for your vehicle with many checks being carried out to ensure an issue free buying experience.
If you understand alloy wheel fitments please enter your required specification to the additional information section when you check out online. Alternatively, you can call our expert team on 0333 800 8000.
Add Accessories
Choose from our essential range of great value accessories
4x Locking Wheel Bolts/Nuts with Key
5 piece kit, comprises of 4 locking bolts/nuts (1 for each wheel) and a locking key. These are recommended to protect your purchase.
4x Chrome Sleeve Valves
Add the finishing touch to your new alloy wheels with Chrome Sleeved wheel valves and valve caps. Fits all alloy wheels. Comes in Pack form and contains 4 in a pack.
1x Bilt Hamber Auto-Wheel Cleaner
It is important to keep your alloy wheels clean in order to preserve their high quality finish - but using the wrong cleaner can give disastrous results. Choose our Waterless Wash and Shine to give a flawless finish.
