Hat (Bell) Mount Rotors
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Drilled Steel Rotor
Rotor Diameter: 10
Rotor Width: 0.25
Rotor Bolt Circle(s): 5 x 5.00
Material: Steel

Drilled Steel Rotor Description

Steel rotors have applications in all types of motorsports. Steel rotors provide a durable lightweight option in applications where sustained temperatures remain in the low to moderate range, and high heat spikes are only observed on an intermittent basis. This could be anything from a hard stopping drag race car at the end of a quarter mile, or a high speed stock car coming in from a qualifier at a super speedway. Steel rotors can also be found in lighter weight open wheel cars such as sprints and modifieds, and a variety of light weight, open wheel road course racers. A special alloy and proprietary manufacturing processes give these rotors high resistance to thermal distortion with excellent friction and wear characteristics against the pads.
NOTE & CAUTIONS:
Suitable applications: Drag / Dirt racing
Ordering Information for Drilled Steel Rotor
Item No 160-1602
Info Details
Rotor Style Drilled
Bedded N
Lug I.D. 4.1
Far Side I.D.
Price Call for OE Pricing
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Drilled Steel Rotor
Rotor Diameter: 10
Rotor Width: 0.32
Rotor Bolt Circle(s): 5 x 3.88
Material: Steel

Drilled Steel Rotor Description

Steel rotors have applications in all types of motorsports. Steel rotors provide a durable lightweight option in applications where sustained temperatures remain in the low to moderate range, and high heat spikes are only observed on an intermittent basis. This could be anything from a hard stopping drag race car at the end of a quarter mile, or a high speed stock car coming in from a qualifier at a super speedway. Steel rotors can also be found in lighter weight open wheel cars such as sprints and modifieds, and a variety of light weight, open wheel road course racers. A special alloy and proprietary manufacturing processes give these rotors high resistance to thermal distortion with excellent friction and wear characteristics against the pads.
NOTE & CAUTIONS:
Suitable applications: Drag Racing
Ordering Information for Drilled Steel Rotor
Item No 160-2182
Info Details
Rotor Style Drilled
Bedded N
Lug I.D. 3.12
Far Side I.D.
Price Call for OE Pricing
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Aluminum Sprint / Midget Rotor-3H
Rotor Diameter: 10.2
Rotor Width: 0.31
Rotor Bolt Circle(s): 3 x 5.00
Material: Aluminum

Aluminum Sprint / Midget Rotor-3H Description

Wilwoods 3 hole mount rotors are precision CNC machined from high strength billet plate. Full symmetrical machining provides perfect balance, perfect flatness and the truest rotation of any rotor being built. These rotors fit the popular 3 x 5.00" mount bolt circle found on most sprint and midget front hubs. Wilwoods engineered drill slot pattern combines the highest degree of weight reduction with the highest resistance to thermal distortion in the contact faces. You get smooth engagement and a consistent full pedal from the low knock-back characteristics of this design. A durable black anodized finish prevents corrosion and simplifies the visual inspection of the contact faces. The best results are always achieved using PolyMatrix Q compound brake pads with these rotors.
NOTE & CAUTIONS:
Unsafe for street use & unsuitable for most forms of Racing.
Ordering Information for Aluminum Sprint / Midget Rotor-3H
Item No 160-3411
Info Details
Rotor Style Drilled
Bedded N
Lug I.D. 3.88
Far Side I.D.
Price Call for OE Pricing
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Aluminum Sprint / Midget Rotor-42T
Rotor Diameter: 10.2
Rotor Width: 0.31
Rotor Bolt Circle(s): 42 Tooth
Material: Aluminum

Aluminum Sprint / Midget Rotor-42T Description

Wilwoods 3.00" x 42 splined axle mount rotors are manufactured from the same high strength billets with the same precision as our 3 hole mount front rotors. Full symmetrical machining provides perfect balance, perfect flatness and the truest rotation of any aluminum rotor being built. Wilwoods engineered drill pattern combines the highest degree of weight reduction with the highest resistance to thermal distortion in the contact faces. You get smooth engagement and a consistent full pedal from the low knock-back characteristics of this design. A durable black anodized finish prevents corrosion and simplifies the visual inspection of the contact faces. The best results are always achieved using PolyMatrix Q compound brake pads with these rotors.
NOTE & CAUTIONS:
Unsafe for street use & unsuitable for most forms of Racing.
Ordering Information for Aluminum Sprint / Midget Rotor-42T
Item No 160-3270
Info Details
Rotor Style Drilled
Bedded N
Lug I.D. 2.69
Far Side I.D.
Price Call for OE Pricing
Purchase
Call (805) 388-1188

Drilled Steel Rotor
Rotor Diameter: 10.25
Rotor Width: 0.31
Rotor Bolt Circle(s): 3 x 5.00
Material: Steel

Drilled Steel Rotor Description

Steel rotors have applications in all types of motorsports. Steel rotors provide a durable lightweight option in applications where sustained temperatures remain in the low to moderate range, and high heat spikes are only observed on an intermittent basis. This could be anything from a hard stopping drag race car at the end of a quarter mile, or a high speed stock car coming in from a qualifier at a super speedway. Steel rotors can also be found in lighter weight open wheel cars such as sprints and modifieds, and a variety of light weight, open wheel road course racers. A special alloy and proprietary manufacturing processes give these rotors high resistance to thermal distortion with excellent friction and wear characteristics against the pads.
NOTE & CAUTIONS:
Obsolete Part Number
Ordering Information for Drilled Steel Rotor
Item No 160-3458
Info Details
Rotor Style Drilled
Bedded N
Lug I.D. 4.1
Far Side I.D.
Price Call for OE Pricing
Purchase
Call (805) 388-1188

Drilled Steel Rotor
Rotor Diameter: 10.25
Rotor Width: 0.35
Rotor Bolt Circle(s): 6 x 5.50
Material: Steel

Drilled Steel Rotor Description

Steel rotors have applications in all types of motorsports. Steel rotors provide a durable lightweight option in applications where sustained temperatures remain in the low to moderate range, and high heat spikes are only observed on an intermittent basis. This could be anything from a hard stopping drag race car at the end of a quarter mile, or a high speed stock car coming in from a qualifier at a super speedway. Steel rotors can also be found in lighter weight open wheel cars such as sprints and modifieds, and a variety of light weight, open wheel road course racers. A special alloy and proprietary manufacturing processes give these rotors high resistance to thermal distortion with excellent friction and wear characteristics against the pads.
NOTE & CAUTIONS:
Suitable applications: Light Asphalt & Dirt Racing
Ordering Information for Drilled Steel Rotor
Item No 160-3748
Info Details
Rotor Style Drilled
Bedded N
Lug I.D. 4.94
Far Side I.D.
Price Call for OE Pricing
Purchase
Call (805) 388-1188

Ultralite 30 Vane Rotor
Rotor Diameter: 10.25
Rotor Width: 0.75
Rotor Bolt Circle(s): 6 x 5.50
Material: Iron

Ultralite 30 Vane Rotor Description

Ultra-Light UL straight vane rotors provide high value performance and rugged durability for a wide range of competition, high performance, and sport driving applications. Don't confuse these rotors with bargain priced off-brand named parts. Wilwood's modern manufacturing capability, combined with large scale ecoNmies, make it possible to offer this level of quality and performance at such an affordable price.
NOTE & CAUTIONS:
Premium grade, medium weight castings.
Ordering Information for Ultralite 30 Vane Rotor
Item No 160-3747
Info Details
Rotor Style Plain Face
Bedded N
Lug I.D. 4.94
Far Side I.D. 6.75
Price Call for OE Pricing
Purchase
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Super Alloy Scalloped Rotor
Rotor Diameter: 10.5
Rotor Width: 0.16
Rotor Bolt Circle(s): 9 x 7.00
Material: Super Alloy

Super Alloy Scalloped Rotor Description

Super Alloy Steel 10.50” x .16” Solid Rotors are one of Sprint racing's lightest rotor at a weight of only 1.40 pounds. Wilwood’s proprietary Super Alloy Steel greatly enhances the durability and lifespan of this rotor over comparable lightweight steel or aluminum rotors. A Drilled and scalloped design provides excellent high temperature stability, rapid heat dissipation, and consistent performance from the brake pads. The fine micro-finish surface beds quickly with new pads. It provides a cost effective, lightweight solution with quick response, long service life from the pads, and consistent braking at all temperatures.. Lowered rotating weight promotes quick acceleration, deceleration, and improved handling.
NOTE & CAUTIONS:
Dirt Sprint car L/F or R/R use
Ordering Information for Super Alloy Scalloped Rotor
Item No 160-10717
Info Details
Rotor Style Drilled
Bedded N
Lug I.D. 6.5
Far Side I.D.
Price Call for OE Pricing
Purchase
Call (805) 388-1188

Drilled Steel Rotor
Rotor Diameter: 10.5
Rotor Width: 0.35
Rotor Bolt Circle(s): 6 x 5.50
Material: Steel

Drilled Steel Rotor Description

Steel rotors have applications in all types of motorsports. Steel rotors provide a durable lightweight option in applications where sustained temperatures remain in the low to moderate range, and high heat spikes are only observed on an intermittent basis. This could be anything from a hard stopping drag race car at the end of a quarter mile, or a high speed stock car coming in from a qualifier at a super speedway. Steel rotors can also be found in lighter weight open wheel cars such as sprints and modifieds, and a variety of light weight, open wheel road course racers. A special alloy and proprietary manufacturing processes give these rotors high resistance to thermal distortion with excellent friction and wear characteristics against the pads.
NOTE & CAUTIONS:
Suitable applications: Light Asphalt & Dirt Racing
Ordering Information for Drilled Steel Rotor
Item No 160-3455
Info Details
Rotor Style Drilled
Bedded N
Lug I.D. 4.94
Far Side I.D.
Price Call for OE Pricing
Purchase
Call (805) 388-1188

Motorcycle Rotor & Sprocket
Rotor Diameter: 10.57
Rotor Width: 0.35
Rotor Bolt Circle(s): 5 X 3.25
Material: Stainless

Motorcycle Rotor & Sprocket Description

The Wilwood Sprocket Brake Rotor and Brake System provides four-piston stopping power with Wilwood performance and classic styling you expect. Multiple mounting options include both left or right side. The Sprocket Brake fits custom applications with 1" axles.
NOTE & CAUTIONS:
Motorcycle Sprocket Brake, Sprocket & Rotor 51 Tooth
Ordering Information for Motorcycle Rotor & Sprocket
Item No 160-10470
Info Details
Rotor Style Drilled
Bedded N
Lug I.D. 2.23
Far Side I.D.
Price Call for OE Pricing
Purchase
Call (805) 388-1188

SRP Drilled Performance Rotor
Rotor Diameter: 10.5
Rotor Width: 0.75
Rotor Bolt Circle(s): 6 x 5.50
Material: Iron

SRP Drilled Performance Rotor Description

SRP Drilled Performance Rotors feature a specially engineered directional cross drill and face slot pattern that improve brake response and pad performance throughout the entire range of light to heavy braking. The venting and cleaning action of the holes and slots will reduce pad glaze and disperse gasses and heat generated during the pad to rotor interface. The holes and slots also inhibit irregular pad compound build-up on the rotor faces resulting in smoother engagement and improved pedal response in all conditions. The material removed also contributes to lower rotating and unsprung suspension weight.
NOTE & CAUTIONS:
Obsolete Part Number
Ordering Information for SRP Drilled Performance Rotor
Item No 160-9249
Info Details
Rotor Style SRP Drilled & Slotted
Bedded N
Lug I.D. 4.94
Far Side I.D. 6.75
Price Call for OE Pricing
Purchase
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Item No 160-9249-BK
Info Details
Rotor Style SRP Drilled & Slotted
Bedded N
Lug I.D. 4.94
Far Side I.D. 6.75
Price Call for OE Pricing
Purchase
Call (805) 388-1188
Item No 160-9250
Info Details
Rotor Style SRP Drilled & Slotted
Bedded N
Lug I.D. 4.94
Far Side I.D. 6.75
Price Call for OE Pricing
Purchase
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Item No 160-9250-BK
Info Details
Rotor Style SRP Drilled & Slotted
Bedded N
Lug I.D. 4.94
Far Side I.D. 6.75
Price Call for OE Pricing
Purchase
Call (805) 388-1188

Ultralite 30 Vane Rotor
Rotor Diameter: 10.5
Rotor Width: 0.75
Rotor Bolt Circle(s): 6 x 5.50
Material: Iron

Ultralite 30 Vane Rotor Description

Ultra-Light UL straight vane rotors provide high value performance and rugged durability for a wide range of competition, high performance, and sport driving applications. Don't confuse these rotors with bargain priced off-brand named parts. Wilwood's modern manufacturing capability, combined with large scale ecoNmies, make it possible to offer this level of quality and performance at such an affordable price.
NOTE & CAUTIONS:
Premium grade, medium weight castings.
Ordering Information for Ultralite 30 Vane Rotor
Item No 160-3450
Info Details
Rotor Style Plain Face
Bedded N
Lug I.D. 4.94
Far Side I.D. 6.75
Price Call for OE Pricing
Purchase
Call (805) 388-1188

Ultralite 30 Vane Scalloped Rotor
Rotor Diameter: 10.5
Rotor Width: 0.75
Rotor Bolt Circle(s): 6 x 5.50
Material: Iron

Ultralite 30 Vane Scalloped Rotor Description

When it comes to rotors, racers are constantly searching for the ultimate balance between the lowest weight and the ability to effectively manage heat. Decreased rotating weight in the drive line provides quicker deceleration under braking and quicker acceleration out of the corners. Lower weight also benefits handling with improved spring and shock control over the unsprung suspension mass. Wilwood's ULS-32 scalloped iron rotors provides effective lightweight options for sprints, late models, modifieds, and other competition applications that race in low to medium temperature ranges.
NOTE & CAUTIONS:
Suitable applications: Dirt Sprint / Midget Racing
Ordering Information for Ultralite 30 Vane Scalloped Rotor
Item No 160-8427
Info Details
Rotor Style Plain Face
Bedded N
Lug I.D. 4.94
Far Side I.D. 7.3
Price Call for OE Pricing
Purchase
Call (805) 388-1188

Super Alloy Scalloped Rotor
Rotor Diameter: 10.5
Rotor Width: 0.78
Rotor Bolt Circle(s): 6 x 5.50
Material: Super Alloy

Super Alloy Scalloped Rotor Description

Super Alloy Steel 10.50” x .810” Vented Rotors are one of Sprint racing's lightest .810" rotor at a weight of only 3.20 pounds. Wilwood’s proprietary Super Alloy Steel greatly enhances the durability and lifespan of this rotor over comparable lightweight steel or iron rotors. A Drilled, slotted, and scalloped design with 24 cooling vanes provides excellent high temperature stability, rapid heat dissipation, and consistent performance from the brake pads.
NOTE & CAUTIONS:
Dirt Sprint Car Inboard Use
Ordering Information for Super Alloy Scalloped Rotor
Item No 160-11217
Info Details
Rotor Style Drilled
Bedded N
Lug I.D. 4.94
Far Side I.D. 7.3
Price Call for OE Pricing
Purchase
Call (805) 388-1188

Drilled Steel Rotor
Rotor Diameter: 10.75
Rotor Width: 0.35
Rotor Bolt Circle(s): 6 x 6.25
Material: Steel

Drilled Steel Rotor Description

Steel rotors have applications in all types of motorsports. Steel rotors provide a durable lightweight option in applications where sustained temperatures remain in the low to moderate range, and high heat spikes are only observed on an intermittent basis. This could be anything from a hard stopping drag race car at the end of a quarter mile, or a high speed stock car coming in from a qualifier at a super speedway. Steel rotors can also be found in lighter weight open wh