New BSA Twins Swing Arm Spindle Mounting Bolt. This spindle bolt will attach your swing arm to your frame. Spindle measures 10 3/16" in total length (including the head), 9/16" diameter, zinc plated, with a thread pitch of 18 TPI. Fits the BSA A50 & A65 Unit Twins (Lightning, Royal Star, Thunderbolt, & Firebird Scrambler) from 1969-1970 only. Please refer to your parts catalog for proper fitment.
*****Please note that this spindle are correct for A50 & A65 twins from 1969-1970 only.*****
•Made in England •O.E.M Part number is 21-1992 or S1992
