Hub Extenders for BMW E21 320i M10 1.8L

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Hub extenders are used to make a dramatic change to the track width of a vehicle. These mate to the existing hub like a spacer would, only they are then bolted down using the original lug holes and a completely new set of lugs embedded in the extender provide a solid hold to the wheel. When installed they relocate the hub mounting surface further outboard and can sometimes eliminate the need for custom hubs and longer suspension components. If you've installed a widebody kit or over-fenders these may well be your next purchase.
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BMW ECS Hub Centric Ring Adapter Set - 73.1mm to 57.1mm
BMW ECS Hub Centric Ring Adapter Set - 73.1mm to 57.1mm
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:372156
Part#: AP731571
In Stock
Sale - Save 40% $ 29.86

This product was last offered at the strikethrough price on
05-02-2026

$ 17.92 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 40%
$ 29.86

This product was last offered at the strikethrough price on
05-02-2026

$ 17.92 USD
Free Shipping on orders $49 and up
Add to Wish List

BMW ECS Hub Centric Ring Adapter Set - 73.1mm to 57.1mm: Ensure Proper Wheel Fitment

  • Enhances the fitment of aftermarket wheels on BMW vehicles
  • Reduces vibrations for a smoother ride
  • Crafted from durable materials for long-lasting performance
  • Easy to install and remove

Upgrade your BMW's wheel fitment with the BMW ECS Hub Centric Ring Adapter Set - 73.1mm to 57.1mm. These adapters are designed to ensure proper fitment of aftermarket wheels on BMW vehicles, reducing vibrations and providing a smoother ride. Crafted from durable materials, they offer long-lasting performance and durability. Plus, they are easy to install and remove, making them a convenient solution for BMW owners.

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