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The 2025 Pro Circuit Limited Edition Moto-10 Spherical pays tribute to that pivotal era with a design pulled straight from the team’s iconic gear
The beveled washers and countersunk mounting screws are chrome plated
The original equipment coil has low resistance primary windings that are not compatible with our ignition
Stack height is pre-set for easy installation (run wet or dry)
• Ready to use
Jims Machine JM-24641-87 Crankshaft Right Main Bearing Red for Big Twin Evolution 87-99 The 2025 Pro Circuit LimitedFeatures & Benefits: * Red Size Pinion Bearing. * Also upgrades Big Twin 1958 1986 to heavy duty late style bearing. Tech Tips: * This bearing must use OEM retaining ring # 11177A. * Never use the 1958 1986 spiral retaining ring or the earlier OEM # 11177 C Style retaining ring to secure the updated 1 piece Pinion bearing. * Replaces OEM # 24641 87A
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