One Group.
One Trade.

S1 Automotive Group works across wheels, tyres and the systems the trade runs on. Four areas — retail partnership supply, custom forged wheels, garage software and e-commerce — and they are not four businesses sharing a name. Each one exists because of the others.

Supplying wheels and tyres properly means holding accurate fitment data. Holding that data is what makes the software worth using. And building storefronts and workshop systems for the trade means seeing, week after week, exactly where the usual way of doing things falls over — the catalogue that lists a wheel which fouls a caliper, the storefront that will happily sell a 5×112 wheel to a 5×120 car.

Fitment data sits in-house rather than being taken on trust from a supplier feed. That matters for one practical reason: when a wheel is quoted for a car, someone here has checked diameter, width, offset, PCD and centre bore against the vehicle rather than against a product listing.

Where a specification is unusual — a modified car, an aftermarket brake kit, a per-corner setup — it gets questioned before it is quoted, not after it is delivered. Fitment is confirmed before despatch.

The same applies to the software. Because we build it, a fitment rule that turns out to be wrong gets corrected in the system rather than worked around by whoever happens to be on the phone.

Most of what we do goes through the trade — retailers, garages, fitting centres and resellers who need wheels, tyres and complete packages to put in front of their own customers, and the systems to sell and schedule them properly. We supply partners rather than compete with them for their retail work.

Software and e-commerce customers are usually businesses in the same trade: a workshop outgrowing a diary and a spreadsheet, or a retailer losing sales because the website cannot answer the only question the customer has.

Retail customers come to us directly for custom forged wheels, where the wheel is specified around the vehicle instead of chosen from a catalogue, and for fitments a general supplier has not got the data to quote with any confidence.

We source and supply across the wheel brands the trade asks for — BBS, OZ Racing, Work Wheels, RAYS, BC Forged, Vossen, Rotiform, Titan 7, Forgeline, Vorsteiner, Method, American Racing, KMC, TSW, Team Dynamics, Calibre, Cades and Dare — alongside tyres from Michelin, Pirelli, Continental, Bridgestone, Goodyear, Dunlop, Yokohama, Toyo, Falken, Hankook, Nankang and Davanti.

Where the fitment does not exist in a catalogue, we build it forged.