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leak-free fitment into standard exhaust header bungs
Q: How does the "turned" surface improve performance
Q: How do I maintain the low-friction performance of these bearings
repeatable lap times
upgrading your clutch system should be your first technical modification
Replacement Ultimate Drum for Small Pattern Sprockets AGM lithium compatible leak-free fitment into standard exhaustDrum replacement made simplethe NAU698 keeps your Ultimate clutch spinning true. Focuses on small pattern compatibility for flexible setups. Direct OEM replacement for worn drums. Accommodates various sprocket sizes. Lightweight yet tough for race demands. Enhances clutch modulation. It restores factory engagement, cutting slip for better acceleration. Vital for maintaining chain tension. In Nor Am systems, it shines in rebuilds. Users note improved
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