. Bulletproof Mainshaft Transmission Sprocket/Pulley Lock Nut – Bulletproof Cycles
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Bulletproof Mainshaft Transmission Sprocket/Pulley Lock Nut

Bulletproof Mainshaft Transmission Sprocket/Pulley Lock Nut

HD mainshaft transmission lock nut.  290 part number fits the 5-speed models and has a left hand thread for a 1.60 inch diameter shaft.  The 291 nut fits the 6-speed mainshaft and has right hand thread for a 1.80 inch shaft.  Made in USA using aircraft grade steel plate. Ships with two high grade allen screws.

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