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GMP Italia Atom Black Polished
21" Inch Wider Rear Set of 4 alloy wheels
Transform the look of your vehicle with these stunning GMP Italia Atom Black Polished alloy wheels. GMP Italia offer the Atom in Black Polished in the perfect fitment for your vehicle.
Wheelbase have built the most accurate fitment database in the wheel and tyre industry. We guarantee that the correct specification will be supplied for your vehicle with many checks being carried out to ensure an issue free buying experience.
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).
Transform the look of your vehicle with these stunning GMP Italia Atom Black Polished alloy wheels. GMP Italia offer the Atom in Black Polished in the perfect fitment for your vehicle.
Wheelbase have built the most accurate fitment database in the wheel and tyre industry. We guarantee that the correct specification will be supplied for your vehicle with many checks being carried out to ensure an issue free buying experience.
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: | GMP Italia | |
| Model: | Atom | |
| Width: | {[{ wheelWidth }]} | |
| Diameter: | 21 Inch | |
| Bolt Pattern: | Best Fit Supplied | |
| Offset: | Best Fit Supplied | |
| Colour: | Black Polished | |
| Style: | Twin 5 Spoke |
Check Compatibility
Alloy Wheels Only
Set of 4 x 21" GMP Italia Atom Black Polished Wider Rear & Fitting Kit
All sets of wheels include four 21" GMP Italia Atom Black Polished Wider Rear 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 21" GMP Italia Atom Black Polished Wider Rear alloy wheels, fitted tyres & fitting kit
All packages include four 21" GMP Italia Atom Black Polished Wider Rear, 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 21 Inch GMP Italia Atom
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
21" GMP Italia Atom Black Polished Wider Rear 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.
Website was easy to navigate, I ordered 19” Bola wheels with P-Zero tyres package and tyre pressure monitors.. wheels were delivered ready to install and TPMS coded. Couldn’t find anyone else that provided this ready to install service..
David Harris
Written: 02nd March 2026
Website was easy to navigate, I ordered 19” Bola wheels with P-Zero tyres package and tyre pressure monitors.. wheels were delivered ready to install and TPMS coded. Couldn’t find anyone else that provided this ready to install service..
David Harris
Written: 02nd March 2026
Fast delivery well packed and protected and excellent prices. And they look great on my vehicle. Thank you.
Thomas Martin
Written: 02nd March 2026
After years of my Mercedes AMG alloys cracking at the slightest sight of a pothole, and extended periods off of the road whilst getting them repaired, I decided to just go for new wheels. I opted for the wheel and tyre package. Even though the same size as was on the car didn't seem to appear, after contacting customer services, they sorted it out quickly. On arrival, the standard wheel bolts in the fitting kit were too long, but with a couple of photos, and a quick email chat with customer services again, that was resolved within a day. All in all, I couldn't be happier. It looks far less likely that the rims will crack, and I don't know if it is the new rims, the new Tyres (not a brand I'd tried before), or maybe both. But the ride is smoother, and even when you miss potholes and travel over those patched road repairs, there's no clunking or jarring that there was before. Very pleased I swapped out the originals!
Mark Wilson
Written: 02nd March 2026
Very helpful, kept in contact from order to delivery. Very pleased
Robert Allen
Written: 02nd March 2026
Very helpful with choice and extras. Fast delivery and well packed. Very happy how they sit on my car Thank you
Paul Hawes
Written: 02nd March 2026
Over the moon with my new wheels. I love my car now . Fantastic service and really helpful. Communication was outstanding from start (ordering) and they had to order from abroad . It was so quick . Within a week I had my wheels delivered And they look stunning So thank you Would 💯 recommend wheel base
Shirley Brown
Written: 02nd March 2026
Over the moon with my new wheels. I love my car now . Fantastic service and really helpful. Communication was outstanding from start (ordering) and they had to order from abroad . It was so quick . Within a week I had my wheels delivered And they look stunning So thank you Would 💯 recommend wheel base
Shirley Brown
Written: 02nd March 2026
Extremely happy with my alloys & tyres. Well packaged with a quick efficient delivery!
Adam Smith
Written: 02nd March 2026
Dave and all of the other staff at Wheelbase were great and very helpful with regards to wheel selection and tyre options… There was a delay to my order that was not flagged to me, however Dave and the team did all they could to turn this around asaap. Having no fitted the wheels, they were definitely the right ones to select and the right place to go with some fantastic options and all with the ability to finance the package…… would definitely use again. 😁
Mat Howell
Written: 02nd March 2026
Fantastic service and quality wheels, 💯 recommend, thankyou
Damion Holdcroft
Written: 01st March 2026
Fantastic wheel & tyre package with free fitting kit, Brilliant price and great communication from start to finish. Ordered on Mon and delivered on Wed morning by DPD. A brilliant service from a knowledgable and professional team 10/10 Thanks Guys.
Michael Plant
Written: 01st March 2026
A fantastic service from start to finish it made a change to do business with a uk based company that certainly knows how to treat its customers. I would not hesitate.to recommend you and will certainly do so to all my friends and family. Tony Willcocks. ————————
Tony Willcocks
Written: 01st March 2026
This is the second time I’ve ordered from Wheelbase and once again the service has been excellent. Customer service is spot on — helpful, knowledgeable, and easy to deal with. I found the wheels and tyres I wanted on their website, then gave them a call for some advice before ordering. The guidance I received was clear and professional. Communication was great throughout, with regular delivery updates. Highly recommended.
Simon Smith
Written: 01st March 2026
Really pleased with the wheels first class service
Alan Harvey
Written: 01st March 2026
I would recommend anyone to come here they pick me best wheel and they put them on the same day thank you again for everything
Zak Boam
Written: 01st March 2026
Quick and efficient service.
Kevin Stevely
Written: 01st March 2026
The Best, Fast and Easy!
Jumar Alabata
Written: 01st March 2026
Very happy and they look great on the car
Steven Gifford
Written: 01st March 2026
Very happy and good quality
Vitalijus Kugys
Written: 01st March 2026
Five stars for this company, brilliant wheels absolutely what I ordered packaged in such a way no damage brilliant be using you again
Jason Ward
Written: 01st March 2026
Had a few telephone queries; but everyone kept their patience with me to assure that wheels were gonna fit. And they did! Thank you.
John Mirbel
Written: 01st March 2026
Brilliant Service from the purchase of my new alloys & tyres right through to delivery, exceptional communication. My wheels look absolutely superb on my Honda CRV, Many thanks Wheelbase. Would highly recommend.
Michael Green
Written: 01st March 2026
Wheels turned up in fantastic condition fitted perfect really happy with them 💪thanks
Lewis Wood
Written: 01st March 2026
Fantastic wheels!!!! Look absolutely brilliant.. wheelbase alloys where great right from the start, made it easy from start to finish.. I picked my wheels they checked everything by registration number to make sure of perfect fit.. I received my wheels, well packaged with the correct fitting kit and bolts.. thank you for make it so easy.. thanks Guys 👍👍A*
Carl Carter
Written: 01st March 2026
Delivery was quick and the lads got the new wheels on efficiently and made sure they’re properly balanced. Proper stuff
Mohsin Sohail
Written: 01st March 2026
Fantastic service a great choice of wheels. I chose black gloss wheels to go on new electric countryman as hated the ones on it. Great price. They fitted them and boxed up the ones they took off so I will sell them online. I went to the shop to choose wheels. They fitted within a week.
Karen Nash
Written: 27th February 2026
Very happy with my new wheels and the service provided by James from start to finish, nothing was too much trouble and they arrived promptly and in perfect condition. Thank you.
Russell Smith
Written: 27th February 2026
Great customer service really pleased with alloys and tires package well and arrived on time thanks very much
Jackie Hill
Written: 27th February 2026
I have found this company to be one of the best I have ever had the pleasure to do business with. The wheels are great quality and an excellent price. The correspondence has been excellent. I have no hesitation in recommending Wheelbasealloys to anyone thinking of buying wheels. FIRST CLASS. Thanks again. Jim Hare
James Hare
Written: 27th February 2026
Very good and quick service
Roger Drury
Written: 27th February 2026
Brilliant service. Great product. 100% recommend.
Shaun Pegler
Written: 27th February 2026
Rims are spotless clearly taken care in putting the tyres on thanks guys
Finley Holder
Written: 27th February 2026
Fantastic customer service an brilliant quality product
Ashley Mcguire
Written: 27th February 2026
Really good service alloys for perfect, second time using wheel base and couldn’t recommend them more
Mike Woods
Written: 27th February 2026
Really good service alloys for perfect, second time using wheel base and couldn’t recommend them more
Mike Woods
Written: 27th February 2026
Absolutely Brillant service , wheels are brillant
Joanne Clowes
Written: 27th February 2026
Can’t fault these guys at all , excellent customer service and updated me every step of the way , the reached out straight away to confirm which car I got and size wheels etc and if I needed custom bolt patterns , updated me every step of the way from when they sent the order to their manufacturer, to being delivered to them and then delivered to me , customer service is absolutely spot on , great pricing and great wheels they look great .
Damien Lewis
Written: 27th February 2026
Excellent service from the Initial phone calls to the Delivery.
Mark Hill
Written: 27th February 2026
The ordering process was nice and easy. The people I spoke with on email were very helpful and also responded very quickly. The website states delivery in 1-2 days however my wheels took 2 weeks to arrive as they had to order them from manufacturer. Other than thst it was all perfect. Wheels look great as well
Alexandru Andri
Written: 27th February 2026
Best service I’ve probably ever received when ordering online, kept in contact the whole time with regular updates. Customer service was amazing. Would definitely recommend
Scott Moore
Written: 27th February 2026
Contacted Wheelbase for a replacement wheel, unfortunately Wheelbase were unable to sauce a replacement rim that was of the same make/colour and size. They were really helpful and gave me several options, eventually I decided on a new set of alloys with tyres fitted. Wheelbase included new wheel nuts, spacers and delivery for a price I couldn't match anywhere else. Really pleased with the level of service and price, the wheels also look great. I definitely recommend them.
Peter Jarvis
Written: 27th February 2026
Ordered four alloy wheels and tyres from Wheelbase and the communication was excellent from start to finish. Unfortunately, the courier delivered them to the wrong location, which was completely out of Wheelbase’s control. However, they acted quickly to locate the delivery and resolve the issue. They kept me updated throughout, which was really reassuring. The alloys themselves are fantastic — excellent quality and exactly what I was hoping for. I wouldn’t hesitate to order from them again.
Lisa Hollis
Written: 27th February 2026
Have had over 4 different wheels for various cars in the past years, and have always received a quality and professional service. Will definitely deal with again soon. Highly recommend !
Michal Shelle
Written: 27th February 2026
⭐️⭐️⭐️⭐️⭐️ WHEELBASE – PROPER SERVICE, PROPER PEOPLE, PROPER JOB From the very first click, Wheelbase made it ridiculously easy. I secured 0% finance over 12 months through Snap Finance, which — as any father treating his son’s pride and joy will tell you — softens the financial sting rather nicely. Their website? Dangerous territory for petrolheads. The selection of wheels and tyres is massive. You can mix, match and spec to your heart’s content. It was genuinely easy to find the perfect setup to suit the rims we’d chosen. Communication was first class. From the moment I placed the order, I was kept informed every step of the way — phone calls, texts, updates — the lot. No chasing. No guessing. Just proper customer service. Now the emotional bit… My son recently bought his dream car — a very rare 33-year-old 1993 Mercedes-Benz 190E LE. Only five of these remain taxed and on the road. It’s destined for greatness… but right now, let’s say it’s in its “before” era. A bit shabby. Slightly unloved. Character building, we’ll call it. So I decided to treat him to a new set of boots. Because let’s be honest — even a scruffy car looks like it means business with the right wheels. We visited the Wheelbase showroom in Oldham on 27/02/26 — and wow. Walls and walls of wheels. For two lifelong petrolheads, it was like being locked overnight in Willy Wonka’s alloy factory. We’d already ordered a set of Deep Dish AXE EX10 18x8j with 225/40 tyres. Job done… or so we thought. The car went into the fitting bay — which, by the way, was like stepping into a beehive. Staff buzzing around everywhere, calmly fulfilling orders like they were making honey. You can choose to take the wheels away or have them fitted on site — and I’m very glad we chose fitting. That’s when Dennis — the resident expert, and clearly a man who knows his arches from his offsets — gently informed us that our original setup would catch the arches. Now… we could have taken it as bad news. Instead, it turned into a masterclass in service. They didn’t just shrug and say “that’s what you ordered.” They went out of their way to make it right. They tested a different tyre size on the rim. Didn’t quite work. Off it came. Then fitted a 235/35 — perfect stance, perfect clearance. And crucially for me… they kept it within budget. No drama. No sharp intakes of breath at the till. That, to me, is proper customer care. The result? The 190E now looks absolutely gangster. The wheels completely transform it. Even with a body that’s still waiting for its glow-up, it now stands apart from any other 190E on the road. But more important than the wheels was the service. The team at Wheelbase were outstanding. Friendly, patient, knowledgeable — and didn’t bat an eyelid at two grown men hovering, watching, photographing every step like proud parents at a school play. A massive shout-out to Dennis and his young colleague — absolute credit to the company. And the admin guy at reception, whose name I completely forgot in the excitement — but you know who you are. Calm, welcoming, organised… and probably wondering why two middle-aged lads were grinning at alloys like they’d just won the lottery. I will not hesitate to recommend Wheelbase at every given opportunity. You were brilliant. And from one proud dad to another — thank you for helping turn a dream car into something that now properly turns heads. — Paul & Sky
Paul B Halfpenny
Written: 27th February 2026
Really pleased with these wheels, they look great on the car. They arrived within the time specified and appear to be well made. They were very well packaged and arrived without any damage. Really impressed Wheelbase I will be recommending you...well done!
Paul Stringer
Written: 26th February 2026
Easy website to use, slightly time delay on shipping but may be my fault for being patient, after order an email was received asking and info on tyre pressure value sensor. I called with a question and was given perfect info and then ordered senors. But over nearly two 10 days later no shipment or confirmation email on order. One quick phone call to double check on order. Then confirm and shipping confirmation with order arrived two days later. Order well packed
Dale Walker
Written: 26th February 2026
great selection price and delivery first class
Duncan Lamond
Written: 26th February 2026
Good service once the wheels had cleared customs into UK (took 2+ weeks). Once you received the wheels you kept me well up to date with their progress and you had them to me within a couple of days of you receiving them Wheels were balanced and ready to go. The advice given on reducing wheel size and the correct tyre size to use with them was excellent. The all terrain tyre looks the part but need testing to see how good they are off road. They look good! Thank you
Richard Cox
Written: 26th February 2026
A1 service, the wheels are great. Excellent communication.
Stephen Moore
Written: 26th February 2026
These Atom alloy wheels are available in the following bolt pattern: 5x112 .
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 Atom 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.


