SPT-31

Spec-1 SPT-31: A Monoblock Sport Wheel for Street and Track Builds

The Spec-1 SPT-31 is a monoblock wheel built for tuner and sport compact builds that want a clean, aggressive multi-spoke face without stepping up to a premium price. The single-piece monoblock construction keeps the design straightforward and the spokes run tight to a defined lip, giving the SPT-31 a purposeful, motorsport-inspired look that suits daily driving and weekend track duty alike. It sits within the wider Spec-1 wheel range as one of the brand's boldest split-color faces.

Sizes and Fitments Stocked

The SPT-31 is stocked in 17, 18, 19 and 20-inch diameters, in widths of 7.5, 8.5, 9, 9.5 and 10.5 inches. Offsets run from a flush +20 and +22 through +25, +38 and +42, so there's room to dial in the stance you're after. Bolt patterns cover 4x100, 5x100, 5x105, 5x108, 5x110, 5x112, 5x114.3 and multi-drilled blank 4x/5x setups.

Popular sizes include the 17x7.5 +42 in 4x100/4x114.3 for lighter compacts, and the wider 18x8.5 +38 for a more filled arch. Five-lug drivers can grab the 17x7.5 +42 in 5x100/5x114.3 Gloss Black & Red Line.

Finishes

Three finishes are available: Gloss Black & Machined, Matte Bronze & Black Lip, and Gloss Black & Red Line. The machined face is the cleanest look, the bronze reads warm and vintage-motorsport, and the red line adds a sharp accent to the classic black.

Price and Who It Suits

The SPT-31 runs from about $133 to $441 per wheel depending on size, pattern and finish, keeping it firmly in value territory for a bold monoblock sport wheel. It suits Honda, Acura, Subaru, VW and similar tuner platforms after a distinctive face without a boutique price. If you want a different spoke pattern in the same lineup, compare the SP-52, the mesh-styled SP-55, the split-spoke SP-60 or the deeper-faced SP-64.

Ordering

Run your numbers through the wheel fitment calculator or call our team at 813-535-5801 to confirm what works on your car. ThreePiece.us is an authorized Spec-1 dealer selling 100% genuine wheels, never replicas, with free shipping on all orders and 30-day returns on unmounted wheels. Spread the cost with Affirm, Katapult, Klarna, PayPal Credit and Snap Finance at checkout.

Spec-1 SPT-31: A Monoblock Sport Wheel for Street and Track Builds

The Spec-1 SPT-31 is a monoblock wheel built for tuner and sport compact builds that want a clean, aggressive multi-spoke face without stepping up to a premium price. The single-piece monoblock construction keeps the design straightforward and the spokes run tight to a defined lip, giving the SPT-31 a purposeful, motorsport-inspired look that suits daily driving and weekend track duty alike. It sits within the wider Spec-1 wheel range as one of the brand's boldest split-color faces.

Sizes and Fitments Stocked

The SPT-31 is stocked in 17, 18, 19 and 20-inch diameters, in widths of 7.5, 8.5, 9, 9.5 and 10.5 inches. Offsets run from a flush +20 and +22 through +25, +38 and +42, so there's room to dial in the stance you're after. Bolt patterns cover 4x100, 5x100, 5x105, 5x108, 5x110, 5x112, 5x114.3 and multi-drilled blank 4x/5x setups.

Popular sizes include the 17x7.5 +42 in 4x100/4x114.3 for lighter compacts, and the wider 18x8.5 +38 for a more filled arch. Five-lug drivers can grab the 17x7.5 +42 in 5x100/5x114.3 Gloss Black & Red Line.

Finishes

Three finishes are available: Gloss Black & Machined, Matte Bronze & Black Lip, and Gloss Black & Red Line. The machined face is the cleanest look, the bronze reads warm and vintage-motorsport, and the red line adds a sharp accent to the classic black.

Price and Who It Suits

The SPT-31 runs from about $133 to $441 per wheel depending on size, pattern and finish, keeping it firmly in value territory for a bold monoblock sport wheel. It suits Honda, Acura, Subaru, VW and similar tuner platforms after a distinctive face without a boutique price. If you want a different spoke pattern in the same lineup, compare the SP-52, the mesh-styled SP-55, the split-spoke SP-60 or the deeper-faced SP-64.

Ordering

Run your numbers through the wheel fitment calculator or call our team at 813-535-5801 to confirm what works on your car. ThreePiece.us is an authorized Spec-1 dealer selling 100% genuine wheels, never replicas, with free shipping on all orders and 30-day returns on unmounted wheels. Spread the cost with Affirm, Katapult, Klarna, PayPal Credit and Snap Finance at checkout.