HRE S101 (2-Piece)

HRE Performance Wheels S101 (2-Piece) - HRE's Best-Selling Series S1 in the FMR-X Modular Barrel Platform

Series S1 in FMR-X Format: The Dominant Configuration for Complex Spoke Geometry Across Performance Sedans and Electric GT Cars

HRE Performance Wheels S101 (2-Piece) is a 2-piece forged wheel and the most widely ordered configuration of HRE's best-selling Series S1 design. The FMR-X barrel format joins a fully forged CNC-machined centre carrying the S101 spoke geometry to a precisely profiled modular outer barrel, producing a wheel lighter per unit than its 3-piece equivalent while retaining the full range of width and offset customisation. Machined in Vista, California, from billet 6061-T6 stock, the S101 (2-Piece) is the reference fitment for Series S1 across Porsche, BMW, Audi, and Mercedes-AMG platforms.

HRE S101 (2-Piece) Design and Engineering: FMR-X Barrel Construction and the S101 Spoke Vocabulary

The FMR-X barrel is a proprietary modular system in which a contoured outer hoop is permanently bonded and fastened to the forged centre, producing a two-piece assembly that behaves as a monoblock in service but retains the sizing flexibility of a modular wheel. For the S101 spoke geometry - characterised by multi-directional surface transitions and integrated lug pockets - the FMR-X format has become the preferred construction because it reduces rotational mass at the outer diameter while keeping the complex centre machining intact. The result is a wheel noticeably responsive on low-inertia platforms including Porsche Taycan, Audi RS e-tron GT, and BMW i4 M50.

HRE S101 (2-Piece) Technical Specifications

Construction: 2-Piece FMR-X forged modular (forged centre, modular outer barrel). Material: Forged aluminium alloy. Available in 19- to 24-inch diameters. All widths and offsets per vehicle specification. OE TPMS compatible. SUV load-rated options available. Lifetime Structural Warranty, 2-Year Finish Warranty. Made in California, USA.

HRE S101 (2-Piece) Available Finishes

The S101 (2-Piece) is available in all HRE standard finish categories: Gloss, Satin, Matte, Brushed, Polished, Frozen, Dark Clear, and Liquid Metal. The two-piece format allows a barrel finish that differs from the centre when an off-list two-tone program is requested. Over 70 standard colours are available; custom paint matching to OEM or bespoke references is supported through the HRE custom programme.

HRE S101 (2-Piece) Vehicle Fitment: Porsche Taycan Turbo S, Audi RS e-tron GT, BMW M5 Competition

The S101 (2-Piece) covers a wide fitment range from 19-inch compact performance through 24-inch full-size SUV. Core fitments include the Porsche Taycan Turbo S, Audi RS e-tron GT, BMW M5 Competition, Mercedes-AMG GT 63 S, Porsche Cayenne Turbo GT, and Lamborghini Urus. The reduced rotating mass of the FMR-X format is particularly valued on battery-electric and hybrid platforms where unsprung weight directly affects range and dynamic response.

HRE S101 (2-Piece) - Any Vehicle, Any Specification

The S101 (2-Piece) can be built for any vehicle. Contact us with your vehicle make, model, and year for a confirmed fitment specification and build quote.