XClutch Stage 1 Organic Clutch & Flywheel – BMW 1M / 135i / 335i (N54/N55)

OVERVIEW

XClutch's Stage 1 kit pairs a single sprung organic disc with a performance single-mass flywheel for the BMW six-cylinder cars that use the 24566 clutch pattern — the E82 1 Series M and the N55 135i and 335i. The sprung hub absorbs driveline shock and keeps engagement smooth, so the car stays civil in traffic while carrying more clamp load than the factory dual-mass assembly it replaces.

Replacing the OEM dual-mass flywheel with a single-mass unit also removes a known wear item on these engines. The kit is supplied complete, so nothing beyond fluids and gaskets is needed to finish the job.

SPECS

• Stage 1 single-disc clutch kit
• Friction material: organic
• Disc hub: sprung center, for street driveability and reduced drivetrain noise
• Flywheel: XClutch performance single-mass flywheel, included
• Replaces the factory dual-mass flywheel assembly
• Supplied as a complete kit with release bearing, pilot bushing, bolts and alignment tool

PARTS INCLUDED

• Pressure plate
• Single sprung organic friction disc
• XClutch single-mass performance flywheel
• Flywheel and pressure plate bolts
• Release bearing
• Pilot bushing
• Clutch alignment tool
• Spline grease

TECH RESOURCES

Additional Parts Required

• None. XClutch supplies the flywheel, release bearing, pilot bushing, bolts, alignment tool and spline grease in the kit.
• Break-in is required. XClutch specifies driving the vehicle gently for the first 1,000 km (roughly 620 miles), avoiding aggressive launches; low-rpm engagements bed the friction material in properly.
• XClutch recommends inspecting the concentric slave cylinder while the transmission is out and replacing it if worn, since the labor is already committed.
• Professional installation; transmission removal is required.

Installation

• XClutch Technical Service Bulletin TSB-SMF02 — single-mass flywheel (PDF)
• XClutch Technical Service Bulletin TSB-214 (PDF)
• XClutch Technical Service Bulletin TSB-226 (PDF)

Notes

• XClutch does not publish a torque rating for this kit. If the rating is decisive for your build, contact Speed Logic before ordering.
• XClutch lists this part number against the 2011 1 Series M and the N55 135i and 335i. Confirm your build date and crankshaft bolt pattern before ordering.
• Price is for parts only; labor is not included.

PART NUMBER

• XKBM24566-1A

VEHICLE APPLICATIONS