Spec Clutch ST652 Stage 2 Kevlar Clutch Kit with Bearing and Alignment Tool

The Spec Clutch ST652 Stage 2 Clutch Kit is engineered for drivers who demand more than a stock clutch without giving up everyday street manners. Built around a high-clamp pressure plate and a pure Kevlar friction disc with steel backing, the Stage 2 delivers excellent drivability alongside meaningfully higher torque capacity and longer wear life compared to a Stage 1 setup.

The Kevlar disc material is available in segmented or full-faced configurations and is paired with a high-torque sprung hub and disc assembly featuring double-sprung hubs with spring cover reliefs for flexibility, and heat-treated components for strength and long-term durability. This combination makes the ST652 an ideal choice for mild to moderately modified naturally aspirated engines as well as power-adder applications, while remaining completely tractable at stock power levels for spirited daily driving.

Key Features:

• High-clamp pressure plate for increased holding power
• Pure Kevlar friction disc with steel backing — segmented or full-faced
• High-torque sprung hub and disc assembly
• Double-sprung hub with spring cover reliefs for flexibility
• Heat-treated internal components for strength and durability
• Includes release bearing and alignment tool for ease of installation
• Designed and hand-built in the U.S.A.

Intended Use: Street, Drag, Pulling, Autocross

The ST652 strikes the ideal balance between performance and daily drivability, making it a smart upgrade for enthusiasts who want a clutch that can handle track days and weekend pulls without punishing them in stop-and-go traffic.