Channel expander


But What is a lane widener?

As its name suggests, a track widener will allow you to widen the track of your vehicle and therefore ultimately obtain a visual rendering of a car that is "wider" on the ground. The track wideners are in fact wedges which come to be put between the hub and the rim of your vehicle in order to lengthen the gap between the wheel and the train, or in other words to widen the center distance of the tires.

Track wideners are often used in pairs at the front but also at the rear of the car. Ideally, it is good to put the same thickness in front and behind.

Note that from a regulatory point of view, it is necessary to prevent the wheels from protruding directly from the wings of your vehicle.

But in this case, why put wideners on a racing car?

This is easy to understand, the fact of having a wider car will therefore allow it to pass faster in the bends, therefore the track widener is a part not to be neglected during a race or competition. automobile, from the moment or necessarily the rules of the race allow it.


Small technical precision:

Also remember to make sure that the studs and nuts are long enough to withstand the new gap due to the track wideners. It must take enough thread of the screw!
On the other hand, not every car will withstand the same increase in gap, and therefore the widest will not be especially the best suited. You will therefore have to take into account the variations of the running gear and the rack of your vehicle.


Small precision competition:


Big warning about the regulations because not all categories allow you to fit track wideners on your racing car. For example, they are strictly prohibited in Group N, conversely they are widely used in F2000 or for pleasure outings in Club on production vehicles.

Create quotation from my cart Request a quotation
Product return

Product return within 14 days with conditions*

Tracked Delivery

Track your order in real time with Colissimo, UPS FEDEX TNT Chronopost DPD GEODIS

HOTLINE online

Our experts are at your disposal by email or telephone

100% secure payment

Bank card payments via CIC Monetico, COFIDIS or PAYPAL in 4 installments free of charge

FAQ: The Most Frequently Asked Questions
How do I track my package?
As soon as the shipment is made, you will receive an email with a tracking link. You can also find this link in your customer account, under "My Orders." Delivery is tracked via Chronopost, Colissimo, DPD, or UPS.
How to contact Customer Service?
You can contact our customer service by email at https://strperformance.com/en/ or by phone at +33 01 34 67 70. We are available Monday to Friday, from 9:00 a.m. to 12:00 p.m. and from 2:00 p.m. to 5:00 p.m. Customer service is closed between 12:00 p.m. and 2:00 p.m. Response guaranteed within 24 to 48 hours (excluding weekends and public holidays).
Which countries do you deliver to?
STR Performance ships your orders all over the world: mainland France, French overseas departments and territories, Europe (Belgium, Switzerland, Spain, Germany, etc.) as well as internationally (Canada, Maghreb, overseas, etc.). Our shipping partners include Chronopost, Colissimo, DPD and UPS, depending on the country, weight and size of the package. Shipping costs are automatically calculated at the checkout stage based on your address. Each shipment is tracked online and secure. We deliver to your home, collection point or business depending on the options available in your area.
What are the shipping times?
Shipping times at STR Performance depend on product availability and delivery destination. ✅ Products in stock : dispatch within 24 to 48 working hours after payment validation (excluding weekends and public holidays). 🔄 Products being restocked or personalized : an additional delay may apply (specified on the product sheet or communicated by our customer service). Average delivery times after dispatch : 🇫🇷 Metropolitan France : 1 to 3 working days via Chronopost, Colissimo or DPD 🇪🇺 Europe (Belgium, Luxembourg, Germany, Spain, etc.) : 3 to 7 working days 🌍 DOM-TOM, Canada, Maghreb, and rest of the world : 5 to 12 working days depending on the area Each order benefits from online tracking : you will receive an email with a tracking number as soon as your package is picked up by the carrier. Important : Orders placed after 12 p.m. are generally processed the following business day. Delivery times may be longer during busy periods (sales, promotions, holidays, etc.).
How much are the shipping costs?
Shipping costs are calculated automatically at the checkout stage, based on the weight, volume of your package and your delivery area. We offer several carriers (Chronopost, Colissimo, DPD, UPS) with rates adapted for France, Europe, the French overseas departments and territories and internationally. The exact cost is displayed before payment, once your address has been entered.