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.
Faultless . Amazing service and fast replies and deliveries. Help in answering my questions and helping me with what I was after. Will use everythink and recommend without fail
Daniel Roberts
Written: 27th May 2026
10/10 service Micheal was extremely helpful, alloys are perfect.
Chris
Written: 27th May 2026
10/10 from start to finish I’m a returning customer and easy to understand why Website is brilliant, user friendly, and if you’re still unsure, quick phonecall and people like Michael Hobson answer. Friendly and full of knowledge. Answered all my questions and even followed up with a friendly email reminder. Recommend wheelbase to anyone looking to improve their vehicle
Matthew Wood
Written: 27th May 2026
Amazing customer service and very quick delivery the only alloy shop I will ever use will be buying again 1000%
Jonathan Jackson
Written: 27th May 2026
Great prices and top quality alloys and tyres, would definitely recommend anyone looking for tyres or alloys to have a look at they’re selection.
Andrew Law
Written: 27th May 2026
Great set of wheels at a super price delivered in very good time well packaged and in perfect condition they look stunning on my Volvo C30 very highly recommend customer service was excellent too five stars easily
Alan Mead-kidd
Written: 27th May 2026
very fast delivery, great customer service.
Aston Fredericks
Written: 26th May 2026
Bought at least 5 sets of wheels from here, great customer service and for what your paying good quality at that never had any issues with cracking with any of the wheels I’ve bought
Jacob Woods
Written: 26th May 2026
Very good wheels Good delivery
Alan
Written: 26th May 2026
Great service .prompt delivery ..happy happy happy.
Darren Green
Written: 26th May 2026
Very pleased with the wheels great service
David Sharman
Written: 26th May 2026
Excellent service from start to finish wheels have made a big difference to the look of my van can't fault any part of the process and the great prices make it a great place to buy from
Ian Best
Written: 26th May 2026
Great service all round, super helpful and product is great. Cannot fault this company
Lorn Geddes
Written: 26th May 2026
Very very good service I was very pleased withmy new wheels
Paul Minter
Written: 26th May 2026
Amazing service, thank you
Harry Collins
Written: 26th May 2026
Based on the service received which included - 1. ease of navigation for the selection and purchase of what I needed - a set of 4 new alloy wheels with tyres. 2. ease of payment for the goods ordered 3. frequent communications keeping me updated on progress of my order. 4 . DPD delivery was prompt and the goods arrived safely and were in a pristine condition. You couldn’t have done better. Thank you.
Keith Mackey
Written: 26th May 2026
Wanted a set of alloys for a while looked on plenty of sites and finally found a set with wheel base very affordable with tyres added communication from there part doing the process with updates along the way fast delivery and very happy with the service will use again in future
Adam W
Written: 26th May 2026
Good range of wheel designs. My choice looks great on my car. Excellent prices (alloys + tyres). Sale process very professionally managed. I'm a very happy customer!
Phil Payne
Written: 26th May 2026
Very pleased with the wheels and fitting kits smooth purchase all through thank you
Darren Bungenaar
Written: 26th May 2026
Great communication throughout purchase, delivered in good time and great condition, packed well and the delivery went well.
Simon Turner
Written: 26th May 2026
excellent service. thank you so much for all your help
Zara Baker
Written: 26th May 2026
Great wheels and great communication. A couple of problems but they were sorted quickly.
Treena Cook
Written: 26th May 2026
Brilliant service from start to finish, superb happy with alloys and tyres, they have transformed the look of my vehicle. Would definitely recommend
Stephen Richards
Written: 26th May 2026
Hi, I fitted my new alloys at the weekend and they look really good on the car. Delivery was prompt and on time.
Michael Cassidy
Written: 26th May 2026
Brilliant service kept me updated with my order, and the fitting kit worked perfectly with my car so fitting the wheels was a really smooth process! Great experience all round!
Ashley Palmer
Written: 26th May 2026
Amazing quality, delivery only taken 2 days and kept me up to date would highly recommend
Roberto Riley
Written: 26th May 2026
Thanks to all at Wheelbase. Have taken delivery of 19” Fox VR3s, shod with Yokohama XL Advan Sports. Easily installed using the supplied free fitting kit. Great communication when needed, quick delivery time. Good price, in my view. Will defo use again on my next car. Thanks to all.
James Wilkinson
Written: 26th May 2026
Awesome wheels and service, arrived within 4 days and look great on the van
Daniel Ennis
Written: 26th May 2026
Professionals. On the phone and on mails. All the issues (done by me) have been solved throught the support line. Excellent products, properly packaged and on time.
Cosmin Alexandru
Written: 26th May 2026
Wheels look great and fit perfectly.
Ben Carlin
Written: 24th May 2026
Excellent customer service, kept in contact throughout. Great wheel and tyre package. Wheel were boxed very well
Matthew Stephens
Written: 24th May 2026
First time using WheelBase, very good experience with these guys. Offered plenty of advice before purchasing, kept me updated throughout the order/delivery process. The fact they can ship to Northern Ireland without any hassle was a massive bonus. Would definitely not hesitate to order for them again. Many thanks guys
Danny Graham
Written: 24th May 2026
Excellent service and 110% communication There was a minor issue with the packaging when wheels where delivered but the alloys where in excellent condition just need to fit them now 🤣
Thomas Horsman
Written: 24th May 2026
Brilliant service and fast delivery can’t recommend enough
Zak Parkinson
Written: 24th May 2026
Hi this is a great company to deal with and they have a great choice of alloys this is my second set I have got off this company and I am over the moon each time I have got a set of alloys.100% recommended 👌
Martin Cassidy
Written: 24th May 2026
An all-round very positive experience. Friendly and helpful staff on the phone, who got back to me promptly with updates. Delivery was very quick, with plenty of communication, so I knew what was happening and when. The wheels look pretty tidy, too! Thanks, chaps.
Rick Laws
Written: 24th May 2026
I don't know why I like these but I do they match my car colour SILVER
Richard Pinnegar
Written: 24th May 2026
Fab service and communication, wheels and tyres are great. Very helpful and friendly when I called with a query. Highly recommend 😊
Lesley Wilson
Written: 24th May 2026
This is my second lot of alloy wheels from wheelbase, great product, great price and fast delivery
Craig Cartwright
Written: 24th May 2026
Excellent advice and service throughout! Thanks
Fiorentino Izzo
Written: 24th May 2026
Great service, quick and easy with good feedback regarding my order tracking. Would definitely recommend!
Jake Gorell
Written: 24th May 2026
Fantastic service, plenty of updates, wheels look awesome.
Paul Pennington
Written: 24th May 2026
Excellent service and quality
Michael Nordwind
Written: 24th May 2026
They are amazing... i really like them and they look very 👍
Lenson Fernandes
Written: 24th May 2026
Great service and product was spot on love new wheels
Jeffrey Lilwall
Written: 24th May 2026
Great from order to delivery! Kept in communication regarding my delivery! Would highly recommend Wheelbase!
Alex Chan
Written: 24th May 2026
Really pleased with the alloy wheels great service
Aamar Arain
Written: 24th May 2026
Fantastic service, really quick delivery and great products ready to go. Super easy way to get rims and tyres at good prices
Hazel Freeman
Written: 24th May 2026
Really easy to use website and complete process to get the right parts specific to my vehicle. Lots of communication from order until delivery and staff were available quickly to answer some questions I had on sensor valves after fitting.
Sean Camilleri
Written: 24th May 2026
Wheelbase were superb at getting some replacement alloys out to me as quickly as possible. From ordering to arrival was under 4 days and the wheels came with everything needed to replace my old non-round alloys! (Blooming pot holes!) I can highly recommend wheelbasealloys!
Matthew Thomson
Written: 24th May 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.
