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Easy start, +15% torque, 10t pinion gear, converts from 102t to 84t

Starter ring gear & jackshaft kit, 84t

#552092

Stock:Yes

Complete kit, converts from stock 102 to the stronger 66t design

Starter ring gear & jackshaft kit, 66t

#552087

Stock:Yes

Evolution industries clutch basket only, bolt-on

66 tooth ring gear replacement

#552027

Stock:Yes

Conversion kit. With 9T pinion gear for 84T Evolution Industries 'EasyStart' starter ring gear conversion kit only. This jackshaft assembly includes all necessary items like jackshaft bolt, spring, pinion gear, thrust washer, lock plate, coupling, output shaft coupling, shaft and retaining ring.

Evolution Industries, 'EasyStart' jackshaft assembly

#552102

Stock:Yes

Used to remove & install the large 1-7/8" (left hand threaded) nut that holds the transmission pulley or transmission sprocket on the transmission mainshaft. Works with both belt & chain drive models. 1/2" drive. One-piece, no-welds narrow body to prevent mass and give maximum effectivity of air impact wrenches. Compatible with all 4 and 5 speed and most non-stock aftermarket 6-speed versions for these years.

Evolution Industries, transmissio sprocket/pulley nut wrench

#552103

Stock:Yes

Sprocket comes with the stock 5/16" offset. This sprocket is designed to be run solid and cannot be used with the OEM compensating vibration damper set-up.
Note: The OEM nut will not work in the solid set-up. The special 569295 motor sprocket nut is required for installation and sold separately.

EV Industries, Power Drive solid steel motor sprocket. 22t.

#552044

Stock:Yes

-4 tooth drive ratio for more torque; weight 2.16 kg; 50% lighter than stock; Incl. required shorter 90t primary chain; Sprocket has larger offset than stock
Note: use with 552035 sprocket bolt kit

Evolution Industries, solid motor sprocket & chain kit. 30T

#552039

Stock:Yes

Sprocket comes with the stock 5/16" offset. This sprocket is designed to be run solid and cannot be used with the OEM compensating vibration damper set-up.
Note: The OEM nut will not work in the solid set-up. The special 569295 motor sprocket nut is required for installation and sold separately.

EV Industries, Power Drive solid steel motor sprocket. 21t.

#552043

Stock:Yes

-4 tooth drive ratio for more torque; weight 2.16 kg; 50% lighter than stock; Incl. required shorter 84t primary chain
Note: use with 552035 sprocket bolt kit

Evolution Industries, solid motor sprocket & chain kit. 30T

#552037

Stock:Yes

-4 tooth drive ratio for more torque; weight 2.16 kg; 50% lighter than stock; Incl. required shorter 90t primary chain; incl. spacer
Note: use with 552035 sprocket bolt kit

Evolution Industries, solid motor sprocket & chain kit. 30T

#552040

Stock:Yes

-4 tooth drive ratio for more torque; weight 2.16 kg; 50% lighter than stock; Incl. required shorter 90t primary chain
Note: use with 552035 sprocket bolt kit

Evolution Industries, solid motor sprocket & chain kit. 30T

#552038

Stock:Yes

9 tooth. Compatible with Evolution Industries 84 tooth 'Easystart' starter ring gears & conversion kits only. Heat treated aircraft quality steel with a black oxide finish.

Evolution Industries, starter pinion gear. 9T 'EasyStart'

#552095

Stock:Yes

Stock replacement

Starter ring gear & jackshaft kit, 102t

#552090

Stock:Yes

9 tooth for use with 66 tooth starter ring gears only. Heat treated aircraft quality steel with a black oxide finish.

Evolution Industries, starter pinion gear. 9 tooth

#552094

Stock:Yes

Stock replacement, will also convert 90-93 Big Twin to 102t but starter ring gear to inner primary clearance must be checked

Starter ring gear & jackshaft kit, 102t

#552089

Stock:Yes

Easy start, +15% torque, 9t pinion gear, converts from 66t to 84t

Starter ring gear & jackshaft kit, 84t

#552091

Stock:Yes

Conversion kit. With 10T pinion gear for 84T Evolution Industries 'EasyStart' starter ring gear conversion kit only. This jackshaft assembly includes all necessary items like jackshaft bolt, spring, pinion gear, thrust washer, lock plate, coupling, output shaft coupling, shaft and retaining ring.

Evolution Industries, 'EasyStart' jackshaft assembly

#552101

Stock:Yes

66 tooth ring gear replacement weld on

#552070

Stock:Yes

STD drive ratio; weight 2.16 kg; 50% lighter than stock; use with 552035 sprocket bolt kit

Solid 34t Motor sprocket

#552034

Stock:Yes

Easy start, +15% torque, 10t pinion gear, converts from 102t to 84t

Starter ring gear & jackshaft kit, 84t

#552093

Stock:Yes