Evolution Catalog (2026)

Power-Drive Motor Sprocket Kits Power-Drive motor sprockets are precision machined from aircraft grade steel and finished with a black oxide coating to ensure exceptional durability and long-lasting performance. Their solid design eliminates the need for the O.E. compensator system, resulting in significant weight reduction and noticeably improved throttle response. Each Sprocket Kit includes the Bolt Kit 1004-3011 for easy installation.

30 Tooth

Part Number

Application

’17 & Later Milwaukee Eight

NS 1012-1249

’11-’17 Twin Cam (Also S.E. charging system) ’07-’10 Twin Cam (Also ’06 Dyna) ’08-’11 Rocker & ’13 & Later Breakout

S

1012-1253

NS 1012-1252

S

1012-1254 1004-3011 1004-3012

Evolution Industries Bolt Kit Replacement Sprocket Spacer

Back

Front

1012-1252

O.E. Compensator (34)

Power Drive 34 Tooth

Difference in RPM

Gear Speed @ RPM Gear Speed @ RPM

4 5 6

70Mph @ 3620 70Mph @ 3042 70Mph @ 2570

4 5 6

70Mph @ 4500 70Mph @3750 70Mph @ 3250

880 708 680

1012-1250

Our 30-Tooth Power-Drive Motor sprocket increases your O.E. primary gear ratio from 1.352 to 1.533, which improves acceleration in each gear. The 30T Motor Sprocket is also significantly lighter than the O.E. compensator assembly which reduces drive train wear as well as increase throttle response. *E.C.M. recalibration will be required to retain gear indicator and cruise functions.

30 Tooth

1012-1231

Chain Length

Part Number 1012-1248 1012-1247 1012-1221 1012-1251 1012-1231 1012-1241 1012-1250 1004-3011 1004-3012

Application

’17 & Later M8 Touring ’18 & Later M8 Softail ’11-’16 Twin Cam Touring ’11-’17 Twin Cam Softail/Dyna

84L 90L 84L 90L 84L 90L 90L

NS NS

S S

’07-’10 Touring

NS NS

’07-’10 Softail / ’06-’10 Dyna

’08-’11 Rocker & ’13 & Later Breakout

S

Evolution Industries Bolt Kit Replacement Sprocket Spacer

N/A N/A