Star - Flywheel

Flywheels
Written By Ark Racing Limited

Star Flywheel – Standard Weight

Designed specifically for classic Star Motor Company vehicles produced between 1898 and 1932, this standard-weight flywheel is engineered and manufactured in-house by Ark Racing Limited.

Crafted to exacting motorsport standards, it combines high-grade steel, Nitride heat treatment, and a Shot Peened surface finish to ensure exceptional strength, durability, and performance. Every detail is optimised to balance mass and reliability, making it ideal for restoration projects or competitive use.

Precision | Heritage | Performance.

Suitable for: The classic Star automobile, which was made by the Star Motor Company, Wolverhampton (active from 1898 to 1932).

More history on Star.

Specification:

Material: 817M40T (Steel)
Heat Treatment: Nitride
Surface Treatment: Shot Peened
Starter Ring: Cut into the flywheel
(Not a separate Ring Gear)
Mass: 16.13 Kg (35.5 lb)

weight convertor icon link to page Mass Convertor

We manufacture a range of bespoke starter motors, custom-built to order in various voltages, spindle gear types, and configurations, including long-nose, short-nose, and direction of rotation (CW/ACW). We also produce high-quality billet flywheels for Cosworth engines, available in various clutch sizes and weights (mass). Options include Standard (STD), Lightweight (LITE), and custom-developed specifications tailored to your needs.

Whatever your requirements are, whether high-output, high-torque, weight-reduction or something more specific,
Ark Racing Limited can provide a solution.

ALSO AVAILABLE for use with Flywheels requiring Clutch Bolts.
We recommend using our Clutch Bolts which come with K-Nuts at a competitive price, in some instances a SAVING 25% over our competitors.

Sizes Available
38.5 | 40mm | 43mm | 48mm | 52mm | 55mm | 60mm | 64 mm | 68mm | Cosworth DFV | BMW M12 44 Clutch Stud

More sizes are available or can be produced, please enquire.

Clutch Mounting Bolts

If you can’t find what you’re looking for, contact us.

Ark Racing can create a solution to meet your requirements.

Call us on +44 (0)345 557 7408 or complete our online contact form.

Contact us
Ark Racing Limited

We design, develop, and manufacture bespoke starter motor systems, high-quality flywheels, and provide precision machining for the professional motorsport industry.

Located in Willenhall in the West Midlands, we pride ourselves on delivering a professional service.

Established in 1968, Ark Racing® Limited provide a complete service, from concept to the finished product.

We also provide precision and sub-contract machining via our other website, www.arkcnc.co.uk.

https://www.arkracing.com
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