THMotorsports Logo

Spec Clutch SB58A SPEC Flywheel - Aluminum

Manufacturer

Spec Clutch

<p><span class="caps">SPEC</span> Clutches and Flywheels are manufactured on-site using the most advanced methods under the strictest tolerances. We wouldn&#8217;t have it any other way. Our commitment to making the very finest parts is at the core of what we stand for as a company. Don&#8217;t accept anything less.</p> <p><span class="caps">SPEC</span> Clutch: Where Precision Meets Pride</p>

Part Number

SB58A
12/01/2032 12:32 PM
Cyber Monday Price

$497.91

Estimated ship date Saturday, December 03

No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

Spec Clutch SB58A SPEC Flywheel - Aluminum

SPEC Flywheels are CNC manufactured at an unheard-of .001 tolerance, in an industry where the standard is .010. This precision manufacturing process ensures perfect balance and a perfectly flat bedding surface for the clutch disc, both of which also contribute to the ultimate in safety for competitive environments. All SPEC flywheels carry SFI certification.

The automotive component most responsible for insuring optimum clutch performance and life is the flywheel. The flywheels contribution to power transfer is three-fold.

Firstly, the flywheel should provide a consistent and friction enhancing surface for the clutch disc. Flywheels also aid in proper inertia, which is determined by the flywheel weight. Inertia controls the ratio of power to acceleration and can make a vehicle faster or slower based on gear ratio, tire type, vehicle weight, power output and even the location in the powerband output is achieved. The weight of a flywheel and amount of inertia it provides can also effect drivability. Lastly, the flywheel must provide a true balance at rpm, which means no dimensional runout that produces engine damaging and power robbing vibrations and allows smooth engine revolutions.

To allow for specific inertia needs, SPEC flywheels are made in high carbon billet steel and aircraft quality billet aluminum. The aluminum and most steel SPEC units are rebuildable and feature a replaceable steel friction plate that is made from a friction- enhancing steel metal specially formulated for optimum clutch bedding and holding power. The aluminum and steel materials provide a light and medium weight option for all types of racing. SPEC spends a lot of time and effort on research and development of optimum flywheel dimensions and weights for all types of driving and racing and can optimize your MOI (moment of inertia) to maximize your cars output and performance.

The best deals and customer service on the net

Best prices around and fast shipping! A+

Great service with the best prices I could find online. I will be ordering from them again!

Best prices, fast shipping, and product as described. I would definitely recommend Autoplicity.

prices are good. After I paid it took them 5 days to ship the order. Communication is not very good with autoplicity.

Super fast shipping, great price, and items arrived perfect.

Had to call technical service for a question. Hold time was very long but once connected the technician was friendly and helpful.

Great prices and user friendly website

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy