WINDSHIELDS & FAIRINGS AUDIO, COMMUNICATION & MOUNTS SADDLEBAGS & LUGGAGE SEATS & SISSY BARS FUEL/AIR SYSTEMS EXHAUST TRANSMISSION & DRIVELINE ENGINE GASKETS & SEALS LIGHTING ELECTRICAL HANDLEBARS, CONTROLS & MIRRORS CABLES TANKS & OIL FILTERS BRAKES DASHES & GAUGES FENDERS & LICENSE PLATE FRAMES HARDWARE, COVERS & GENERAL FRAMES & SUSPENSION FOOTRESTS & FLOORBOARDS WHEELS & AXLES dragspecialties.com All part numbers in BLUE are new for the OldBook. SECTION 8 550 See FATBOOK For Late Model Applications PART # DESCRIPTION FOR 36-79 BIG TWIN 4-SPEED DS-1910821 22-tooth sprocket; repl. OEM #35203-36 DS-1910831 23-tooth sprocket; repl. OEM #35212-73 DS-1910841 24-tooth sprocket DS-1910251 25-tooth sprocket 1 For proper alignment, spacer PART #DS-195163 (OEM #35079-80) is recommended. PART # DESCRIPTION FOR L79-86 BIG TWIN 4-SPEED DS-191086 22-tooth sprocket; repl. OEM #s 33338-83, 35203-80 DS-191087 23-tooth sprocket; repl. OEM #s 35212-80, 33337-83 DS-191088 24-tooth sprocket PBI TRANSMISSION MAINSHAFT SPROCKETS •Premium chromoly steel (8620) heat-treated one-piece sprockets machined on computer-controlled lathes •Broached specifically for maximum spline-to-shaft contact for optimum load bearing •For use with 530 chain •Made in the U.S.A. OFFSET TRANSMISSION SPROCKETS •CNC machined from a premium nickel chromoly steel (8620), case-hardened and finished with an electroless nickel plating for corrosion/w ear resistance and lubricity •Sprockets are drilled and tapped to accommodate late-model lock plate, PART #DS-360182, available separately •Will also fit 86-93 Big Twin models with use of OEM #33344-94 (spacer), OEM #12067A (seal) and OEM #11165 (O-ring) PART # DESCRIPTION ZERO OFFSET MAINSHAFT SPROCKET 1212-0260 23-tooth sprocket 1212-0261 24-tooth sprocket 0.500” TOTAL OFFSET MAINSHAFT SPROCKET 1212-0136 22-tooth sprocket 1212-0137 23-tooth sprocket 1212-0138 24-tooth sprocket 0.750” TOTAL OFFSET MAINSHAFT SPROCKET PBI-281-21 21-tooth sprocket PART # DESCRIPTION 0.750” TOTAL OFFSET MAINSHAFT SPROCKET (CONT) PBI-281-22 22-tooth sprocket PBI-281-23 23-tooth sprocket PBI-281-24 24-tooth sprocket 1.310” TOTAL OFFSET MAINSHAFT SPROCKET 1212-0262 24-tooth sprocket 1.06” TOTAL OFFSET MAINSHAFT SPROCKET PBI-288-23 23-tooth sprocket PBI-288-24 24-tooth sprocket FOR 86-99 EVOLUTION BIG TWIN 5-SPEED •Offset measurement is taken from the face that rests against the mainshaft bearing to the inside of the teeth for “Total Offset” description •For use with 0.530 pitch chain •Made in the U.S.A. DS-191082
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