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GMP Italia Stellar Black Polished
21" Inch Wider Rear Set of 4 alloy wheels
Transform the look of your vehicle with these stunning GMP Italia Stellar Black Polished alloy wheels. GMP Italia offer the Stellar 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 Stellar Black Polished alloy wheels. GMP Italia offer the Stellar 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: | Stellar | |
| Width: | {[{ wheelWidth }]} | |
| Diameter: | 21 Inch | |
| Bolt Pattern: | Best Fit Supplied | |
| Offset: | Best Fit Supplied | |
| Colour: | Black Polished | |
| Style: | Multispoke |
Check Compatibility
Alloy Wheels Only
Set of 4 x 21" GMP Italia Stellar Black Polished Wider Rear & Fitting Kit
All sets of wheels include four 21" GMP Italia Stellar 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 Stellar Black Polished Wider Rear alloy wheels, fitted tyres & fitting kit
All packages include four 21" GMP Italia Stellar 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 Stellar
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 Stellar 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.
Brilliant customer service to make sure I had the right fit as i had a cross over model car . Fast delivery
Luke Upton
Written: 19th March 2026
Great looking wheels, service is also great, highly recommended company
Atem Alia
Written: 19th March 2026
Great quality fast delivery great price and service highly recommended
Steve Clark
Written: 19th March 2026
I recommend them 100%. Great alloy wheels, great tires, everything perfectly programmed for the specified car, super packaged, very good contact and assistance, and express delivery :)
Dorota Nowak
Written: 19th March 2026
Good quality alloy’s and fast delivery
John Turner
Written: 19th March 2026
Very nice one and very happy
Florjan Balla
Written: 19th March 2026
Very pleased with new alloy’s excellent communication and very professional service thanks guys.
Adam Parkin
Written: 19th March 2026
First class service all round Excellent communication from start to finish , I couldn’t recommend these guys enough Was a real pleasure dealing with them Thanks for everything
Warren Brain
Written: 19th March 2026
Good service
Terence Barton
Written: 19th March 2026
Very happy with my new set of wheels, they fit and look awesome. I have used wheelbase before so i know what to expect on quality and derlivery service. i will continue to use again 👍
Ricky Hodge
Written: 19th March 2026
Very good experience. I have had 3 to 4 sets of wheels from you over the years. I would not consider going anywhere else. Well done Wheelbase.
Paul Cole
Written: 19th March 2026
Brilliant service couldn’t of ask for better service, Wheels are perfect in every way possible very professional outfit Would recommend
Brian Jannikos
Written: 18th March 2026
Had 4 new alloys quickly and professionally fitted to my E Class Mercedes. Great qualiyy and value.
John Bryan Doherty
Written: 18th March 2026
Great! Absolutely quality stuff!
Josh Emre
Written: 18th March 2026
Gud custom gud service and very helpful thank you
Paul Mitchell
Written: 18th March 2026
Really helpful staff and much quicker delivery than I thought
Samuel Farmer
Written: 18th March 2026
Fast and excellent service alloys were great would recommend highly
Ian Stevens
Written: 18th March 2026
Spot on
Jack Mcgee
Written: 18th March 2026
I recently ordered a set of Black Rhino alloy wheels from WheelBase, and I couldn’t be happier with the experience. The whole process was smooth from start to finish. The delivery was right on time, exactly as promised, and the wheels arrived very well packaged, ensuring they were in perfect condition upon arrival. It’s clear that they take great care with their products and customer satisfaction. Communication was also excellent, keeping me updated throughout the process. Overall, a very professional and reliable service. I would definitely recommend WheelBase to anyone looking for quality wheels and a hassle-free buying experience. Thank you Wheelbase team! Zoltan N.
Zoltan Nabradi
Written: 18th March 2026
So I put my order in for the wheels I wanted me being me ordered the wrong size so called up and got the wheels changed nice a simple swap asked what the estimate time of delivery would be they said 2 weeks but under a week later the wheels turned up tyres fitted as well ready to be put on the car, can’t thank everyone at Wheel base alloys for helping with the questions I had, would 100% recommended buying from this amazing company
Ben Ward
Written: 18th March 2026
Highly recommend ⭐ I ordered alloys and tyres Tuesday afternoon.. I had an email soon after to advise me that my car had a tyre pressure monitoring system and if I wanted to add this to my order which was great as I definitely did it just wasn’t something I thought of at the time of ordering. I phoned the company to get a ETA as my car was off the road and the guys I spoke to were so helpful! The alloys were delivered by the friday morning with the tyres & pressure monitors fitted ready to go. Great tracking too with DPD.
Becky
Written: 18th March 2026
Great looking wheels, service is also great, highly recommended company
Atem Alia
Written: 18th March 2026
Was a pleasure to deal with wheelbase no problems purchasing alloys and tyres to my needs.fantastoc communication and really quick delivery quality wheels aswell thankyou ian
Ian Wright
Written: 18th March 2026
Ordered alloys wheels with tyres,kept informed from the beginning about a slight delay in delivery, but worth the wait, well packaged, changed the look of my vehicle greatly, very happy with the service.
Barry Gilmore
Written: 18th March 2026
5 star performance,nice wheels very well packaged and of good quality.
Michelle Simmonds
Written: 18th March 2026
Ordered some bola FLZ in 21" for my 2025 Ioniq 5 N Wheels and tyres arrived safely and was a smooth process from start to finish. Michelin Pilot sport 4S knock spots off of the factory fitted 21" Pirelli P Zeros
Danny Botterell
Written: 16th March 2026
Alloys came in perfect condition and packaged well. Great qaulity and great prices also arrived very quickly . Highly recommend wheelbase alloys to anyone looking for a new set.
Michael Rooney
Written: 16th March 2026
Excellent customer service by Damian! We spoke on the phone several times to discuss my order and confirm delivery times. I very much appreciate your company’s personal service, thank you. Very happy with the look and quality of the new alloys too.
Andrea Quirrenbach
Written: 16th March 2026
Stephen was really helpful, the wheel I wanted wasn’t on the website as a single alloy but they did have the set of 4, he was able to sort just the 1 wheel for me without any trouble
Bradley Morgan
Written: 16th March 2026
Nice wheels , very good service well packed thank you would recommend! Thank you
Claudio Silva
Written: 16th March 2026
Went with the roma radium 19s for my c43 awesome quality looks so much better, will deffo in future if change alloys again use wheelbasealloys also chucked in free alignment tools brand new front spacers , highly recommend
Ryan Forehead
Written: 16th March 2026
Iv received my wheels safe and sound they look lovely on my ride thank you
Brian Woodley
Written: 16th March 2026
More than pleased. Arrived on time. They look great. Many thanks Tony
Tony Deeprose
Written: 16th March 2026
Great wheels and tyres everything balanced look fantastic on my mercedes vito Great customer service any questions answered very quickly five stars 🌟
CLIVE HUTHER
Written: 16th March 2026
Really great, everything was packaged up well. I got tyres onto the new alloys and it was all spotless. the wheels were balanced correctly and tyre pressure was pretty accurate too. amazing service and pretty quick with shipping as well even though my alloys weren’t in stock at the time of ordering
Leanne Heatley
Written: 16th March 2026
Absolutely fantastic customer service team and my alloys look beautiful 👌
Daniel Trowman
Written: 16th March 2026
Thank you so much super service as always, installers made fab job as always and wheels and tyre combo look amazing on my car in comparison to OEM, AS
Andrew Smither
Written: 16th March 2026
Thee was a little delay on delivery o but everything else perfect I bought the tyre package and they came pre-fitted with air in them ready to go straight on the car👍🏻
Sonny Sidney
Written: 16th March 2026
Perfect experience. Wheels fit perfectly
Lewis Herbert
Written: 16th March 2026
Great friendly service with great choice
Steven Malik
Written: 16th March 2026
Great communication through out, swift delivery and the wheels are better than expected. Would definitely recommend.
Jason Audas
Written: 16th March 2026
We needed a new set of locking wheel nuts for our new Wheelbase Alloys and, again, Wheelbase delivered. Exactly what we needed at the perfect price. Fantastic job again, thank you
Adrian Dungey
Written: 16th March 2026
Excellent to deal with and great price as well
Lawrence Engineering
Written: 16th March 2026
Great price and great service just needs a coffee machine for customers that are waiting that would be appreciated
John Owen
Written: 16th March 2026
Great service, easy to order via the telephone to a real person. Communication and paperwork were spot on. Wheels arrived well packaged and when they said they would.
Andrew Beck
Written: 16th March 2026
Excellent service. And the wheels look perfect on the vRS. Thank you
Martyn Butterfield
Written: 16th March 2026
Wheels arrived on time after a slight issue with what I originally ordered being out of stock great communication in sorting out another set that I liked and dispatching them wheels fitted the car perfectly and give it that more aggressive look compared to the stock wheels. Would definitely recommend wheelbase to friends and family
Darren Goodin
Written: 16th March 2026
Excellent after service with further requirements, will definitely use again at some point !!
David Pretty
Written: 16th March 2026
Excellent service, surprised how quickly you changed wheels & tyres, they make the car looking a lot nicer with new wheels on, could no speak more highly of the service I was given, also all the assistance Monica gave. Thank You Very much, certainly recommend you. Stan
Stan Massie
Written: 16th March 2026
Absolutely brilliant and simple to do business with. Great team on the phone helped me with some questions and the delivery was nice and quick!
Marvin Mcgill
Written: 15th March 2026
These Stellar 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 Stellar 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.
