This Screamin' Eagle clutch spring has a 10 % increase in spring rate to handle the increased power of your 98-later Evolution 1340 and 99-later Twin Cam equipped models.
SCREAMIN' EAGLE VARIABLE PRESSURE CLUTCH
Get more performance from the original equipment clutch. The Screamin' Eagle variable pressure clutch is designed to help put the added power from a Screamin' Eagle Stage kit to the pavement. This bolt-on kit harnesses the centrifugal force of spinning weights to increase the clutch capacity as the engine speed increases. The mechanism applies increasing pressure to the stock clutch pressure plate as RPM rises. The result : High torque-handling capacity without increasing clutch lever effort at idle. Kit fits behind most stock derby covers with no modifacations.
Variable pressure clutch for 2014 and later assist and slip clutch with springs. Handles up to 155ft/lbs torque.
SUBURBAN SPEED MILWAUKEE EIGHT 107 TO 128 & 114-117 TO 131 CI PISTON & CYLINDER KIT
Suburban Speed and Mahle Motosports have come out with a 107 to 128 and 114 - 117 to 131ci flat top piston & cylinder kit for your 2017 -UP Harley-Davidson® Milwaukee Eight. These pistons have a -1.2cc dome to get the compression up to 11.1 to 1 to 12.0 to 1 depending on the cylinder head gaskets. The same research and development has gone into these pistons as the rest of our pistons to give you the highest quality and reliability. This piston & cylinder kit does not require rebalancing flywheels like most of our competitors piston kits. Mahle pistons feature:
Forged from 4032 aluminum for tighter cylinder wall clearances and quieter operation.
Forged 4032 alloy with grafal anti-friction coating on skirts.
Phosate-coated to reduce micro-welding and pin galling.
Pin bores finished on CNC boring equipment.
High strength 9310, light weight nitrided steel wrist pins.
.054 plasma moly top rings, .054 cast second rings.