ACT T1R-B05 Mod-Twin Heavy Duty Race Twin Disc Clutch Kit

The ACT T1R-B05 Mod-Twin Heavy Duty Race Clutch Kit is a high-performance twin disc clutch system engineered for demanding race applications. Designed as part of ACT's acclaimed Mod-Twin platform, this kit delivers massive torque capacity, superior heat tolerance, and a fully modular, rebuildable construction that makes it a top choice for drag, road, and rally racing.

Key Features:

• Puck-Style Ceramic Friction Plates — High-quality ceramic friction materials deliver a high friction coefficient, superior heat capacity, and extended clutch life
• Mono-Drive Chromoly Hub — Heat-treated for strength and durability, the rigid Mono-Drive hub uniformly transfers torque to the input shaft via one continuous spline, extending input shaft life
• CNC-Machined Balanced Flywheel — Dynamically balanced flywheel ensures smooth, vibration-free operation across the entire RPM range
• Exclusive 4-Stage Diaphragm Heat Treatment — ACT's proprietary diaphragm process provides a consistent, predictable pedal feel under repeated high-load cycling
• Forged Aluminum Pressure Plate Cover — Lightweight yet robust construction with hardened wear points for long service life under extreme conditions
• Patented Monoloc Collar — Provides uniform loading on the release bearing and pressure plate to ensure proper alignment and smooth disengagement
• 100% Clamp Load Tested, Balanced & SFI Certified — Every unit is verified for consistent performance before leaving the factory
• Fully Rebuildable — Replacement discs and most components can be ordered separately for cost-effective long-term ownership

What's Included:

• CNC-machined dynamically balanced flywheel
• Pressure plate cover with diaphragm spring
• Two puck-style ceramic friction disc faces
• Rigid Mono-Drive hub
• Floater plate
• Patented Monoloc Collar
• Release bearing
• Alignment tool
• Pilot bearing (where applicable)

ACT's Mod-Twin design philosophy solves the common tradeoffs found in twin disc clutch systems — delivering an ultra-durable, customer-serviceable clutch with very high torque capacity, predictable aggressive engagement, and reliable performance for serious motorsport use.