Drive Systems and Clutches |
Evolution Industries
manufacturer of Diamond Tough street
or strip ready clutch systems. Made in USA ![]() |
Diamond Terminator Clutch |
Complete Powerdrive |
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Aluminum clutch basket with Series D kit for Sportster 1991 and later Aircraft quality ring gear steel, Heated and black oxide finish for extended life. Hard anodized clutch basket for increase durability |
Kits include: Diamond Terminator diaphragm Series D spring clutch assembly. Complete billet clutch basket. Steel drive hub. |
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Evolution Industries and Bill Werner complete cluth basket kit for XR750 (1972 and Up) Light weight race ready aircraft aluminum drive hub. Kevlar friction plates |
Kits include: Complete basket and clutch Note: ATF fluid recomended for optimal performance. Tech tip: When the clutch wear 0.05"you can simply just add a 0.05" steel plate to increase clutch life |
Diamond Terminator Billet Clutch Basket |
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Clutch basket for Sportster 1991 and later Efficiant power transfer. Less Vibration. Replaceable 78 tooth ring gear. One-piece clutch basket is precision machined from 7075 aluminum and hard anodized. Accepts Stage 1 or Series D and OEM clutch |
Kits include: Clutch basket 78 tooth ring gear bearing and snap Ring |
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2-piece clutch basket for 2006 and later Dyna and 2007-2010 Big Twin 46 (Stock) or 49 (Performance) tooth billet 6061 hard anodized aluminum 2-piece clutch basket. 3 times stronger than stock. The 49 tooth gear raises RPM to achieve maximum performance eliminating lugging of motor. Accepts Stage 1 or Series D and OEM clutch |
Kits include: clutch basket with steel sprocket, ring gear and bearing. 49 tooth kit also include custom primary chain Note: 49 tooth basket is not compatible with 6th speed indicator light or cruise control models. Can be corrected by using TTS MASTERTUNE |
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2-piece clutch basket for 2011 and later Big Twin 46 (Stock) or 49 (Performance) tooth billet 6061 hard anodized aluminum 2-piece clutch basket. 3 times stronger than stock. The 49 tooth gear raises RPM to achieve maximum performance eliminating lugging of motor. Accepts Stage 1 or Series D and OEM clutch |
Kits include: clutch basket with steel sprocket and ring gear. (Bearing and snap ring sold separately) 49 tooth kit also include custom primary chain Note: 49 tooth basket is not compatible with 6th speed indicator light or cruise control models. Can be corrected by using TTS MASTERTUNE |
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Clutch basket for 1936-2006 Big Twin Forged 7075 hard anodized aluminum one-piece clutch basket. Choice of ring gear. Accepts Stage 1 or Series D and OEM clutch Note: 1998-2006 fits 1994-1997 when used with 1998-2006 clutch as an upgrade. 1965-69 and 1970-84E features bolt on ring gear |
Kits include: Clutch basket with bearing and ring gear, Note: 10 tooth pinion gear included on 84 tooth Easystart clutch baskets. |
Drives |
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Polished or Black Stealth 2XL and 3XL belt drives for 1991 & later Sportsters, includes 6 spring stage 1 terminator clutch The only left side belt drive for original Sportster. 3XL features 2 upper belt guard rails as shown. 2XL features single rail. Utilizes clutch cable. Must be used with forward controls. |
Kits include: Belt drive frame, 8MM 2 or 3 Inch Goodyear belt, 45 tooth engine sprocket, 72 tooth clutch sprocket, 6 spring Diamond Terminator Stage 1 clutch. Note: Optional show bike hardware kit featuring polished & chromed allen head |
Parts |
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46 and 49 tooth basket sproket and
ring gear for 2006 and later Dyna and 2007 and later Big Twin Stock 46 tooth (1.352 gear ratio) and performance 49 tooth (1.441 Gear ratio). The 49 tooth gear raises RPM to achieve maximum performance eliminating lugging of motor and achieves maximum performance. All are designed to fit stock OEM chain baskets |
Kits include: Sprocket and ring gear, mounting harware 49 tooth kit also include custom primary chain Note: 49 tooth basket is not compatible with 6th speed indicator light or cruise control models. Can be corrected by using TTS MASTERTUNE |
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Power drive diaphragm clutch spring Power drive diaphragm clutch spring available in light and heavy performance |
Kits include: Spring |
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Terminator Stage 1 clutch performance
red spring You need it when running bike with 150+ horsepower. 30% stronger than blue springs |
Kits include: Springs |
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30 tooth compensator sprocket kit for 2006 and later Dyna and 2007 and later Big Twin 30 tooth sprocket changes stock 1.352 gear ratio to 1.5333 gear ratio. Manufactured from aircraft quality heat treated steel. 2 pounds lighter than stock |
Kits include: 30 tooth sprocket, Custom primary chain and Easy to follow instructions Note: Not compatible with 6th speed indicator light. Can be corrected by using TTS MASTERTUNE Recommends installing a new sprocket bolt whenever sprocket is removed |
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34 tooth motor sprocket for 2006 and later Dyna and 2007 and later Big Twin This solid 34 tooth motor sprocket conversion eliminates slippage & noise from compensator Manufactured from 4140 heat treated steel. At 4.770 lbs this sprocket reduces over half the weight (less rotating mass). |
Kits include: 34 tooth sprocket Recommends installing a new sprocket bolt whenever sprocket is removed |
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Power drive motor sprockets 1936-2006 Big Twin All sprockets come with a 5/16" offset |
Kits include: Sprocket Note: Sprockets sold without nut |
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Diamond Terminator transmission
pulley 1985-2012 Big Twin * Lightweight 1.8 lb 7075 aluminum (OEM Steel is 8.8 Lbs) * Lightened 4 lb 4140 Steel (OEM Steel is 8.8 Lbs) * Smaller transmission pulley gives more low end torque for better acceleration. * Larger transmission pulley gives lower RPM on top end less vibration for smoother ride. |
Kits include: Sprocket Note: *1985 thru 2006 Big Twin transmission pulleys do not come with spacer. *All pulleys through 2006 come complete with lock plate kit. * When changing to a smaller or larger pulley replacing belt may be required. |
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Power drive Sportster motor sprockets
for race track application Hard anodized Sportster sprockets are ready for the track in a wide variety of teeth count to handle whatever primary ratios you may want to achieve. Made from 6061 aluminum for strength and weight reduction. Some smaller sprockets do not accommodate a stator & charging system due to it's size reduction. For race application only |
Kits include: Sprocket |
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Super 106 tooth starter ring gear kit for 2006-later Dyna and 2007-later Big Twins Made from 8620 steel. Hardened by carburization followed by an oil bath (not a water) quench. Black oxide finish. Starter clutch features 20% larger rollers for stronger and longer starter life |
Kits include: Starter ring gear, Replacement starter clutch and Pinion gear assembly or Starter ring gear and Replacement starter clutch or Starter ring gear and Pinion gear assembly |
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Starter ring gear kits for 1965-2006 Big Twins (except 2006 Dyna) Made from 8620 steel. Hardened by carburization followed by an oil bath (not a water) quench. Black oxide finish. Designed to fit stock OEM and Evolution Industries baskets |
Kits include: Starter ring gear and harware - Note: We Recommends changing pinion gear any time the ring gear is replaced. |
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Starter ring gear conversion kits
(66, 84 and 102 tooth) Made from 8620 steel. Hardened by carburization followed by an oil bath (not a water) quench. Black oxide finish. Designed to fit stock clutch baskets |
Kits include: Starter ring gear, pinion gear and hardware Note: 84 tooth Easystart conversion kit also include 9 or 10 tooth pinion gear |
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Starter ring gear and jackshaft
conversion kits (66, 84 and 102 tooth) Made from 8620 steel. Hardened by carburization followed by an oil bath (not a water) quench. Black oxide finish. Designed to fit stock clutch baskets |
Kits include: Starter ring gear, mounting bolts, Jackshaft bolt, spring, pinion gear, thrust washer, lock plate, coupling, output shaft coupling, shaft and retaining ring Note: 84 tooth Easystart conversion kit also include 9 or 10 tooth pinion gear |
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Pinion gears (9 and 10 tooth) High strength heat treated steel. Black oxide coated for longer life. Changing pinion gear is recomended whenever changing ring gear or Chain basket. |
Kits include: Pinion gear |
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Starter jackshaft assembly for OEM
ans Evolution 84 tooth convertion High strength heat treated steel. Black oxide coated for longer life. |
Kits include: Jackshaft bolt, spring, pinion gear, thrust washer, lock plate, coupling, output shaft coupling, shaft, retaining ring and mounting bolts |
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Starter motors for 1989 and late Big
Twin and Sportster Chrome Or Black. Optimize our cranking power when used with compression releases. 20% oversized rollers. 1.4KW, 1.6KW and 1.7KW Note: Due to the longer body on the 1.7KW the oil spout might have to Be spaced outward for clearance. |
Kits include: Starter |
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Stainless Steel Exhaust Flange Kit. Cut from 316 stainless steel Show Polished Available in 3 options of hardware: 1) Polished 12 points flange nuts 2) Polished hex flange nuts 3) Black oxide flange nuts. |
Kits include: 2 flanges and 4 nuts Note: Due to various exhaust manufacturers & exhaust styles and bends the 12 point hardware might interfere with socket drive due to tight exhaust bends around the flange. |
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Manual Chain attitude adjuster by
Baker Solves the issues associated with the stock auto chain tensioner. Stock VS. BAKER Attitude Adjuster - Increase torque by 3.42 ft/lbs - Reduces primary noise - Improves motor bottom end and inner primary race bearing durability |
Kits include: Attitude Chain Adjuster Kit Fit 2006-later Dyna 2007-later Softail/Touring Note: - Chain shoe machined from Nylon 66 - Active Plate and Back Support Plate investment cast with 4130 steel - 28% Finer teeth spacing (compared to 2001-06) for more accurate adjustments - Chain adjustment method same as 2001-06 style stock LBracket adjusters. |
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Final Power-Drive sprocket Manufactured from 1045 american steel then heat treated Show chromed finish, Raw also available Available in the following tooth counts; 47, 48, 49, 51, 52, 53 |
Kits include: 120 pitch Regina 530 Z-ring chain Riveting link Chrome mounting hardware 0.550" spacer to fit possible offsets Note: - All sprockets have a 2.222" ID to fit 2000 and up wheels. All parts from kit available for sale |
Tools |
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Transmission main drive nut tool Used to remove mainshaft transmission nut, 1/2 inch drive, One piece design (no welds). Narrow body massively helps transfer torque accurately to the right spot without having to use a monster impact gun. |
Kits include: Nut tool |
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Alternator rotor removal and
installation tool This tool is designed for 45 AMP charging systems, also fits most cups with a 2 hole drilled system. Rotor tool will safely pull the rotor free from its magnetic hold. Simply pinch and pull off rotor cup. |
Kits include: Rotot remouval and installation tool |
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Counter bore tool Used to counter bore the stock baskets on 2006-later Dyna and 2007-later Big Twins in order to retro-fit Evolution Industries 46 & 49 tooth baskets gear kit |
Kits include: Counter bore tool |
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Oil filter wrench One piece construction (no spot welds that snap loose here). The tool is domed on the inside to contour the oil filter radius. The filter wrench also has a large cut out in order to clear the crank position sensor on twin cam models. |
Kits include: Oil filter wrench |
Rivera Primo Replacment Parts |
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Available Parts: - 3 inch belt drive front pulleys. - Ball milled design front and rear pulley covers. - Smooth belt driver cover. -1.25 and 2 front belt drive pulley (Call for your model specific pulley). - Early style (1936-1984) baskets for 1.75, 2 and 3 belt drives. - Steel front pulley Inserts (every offset size available). - Starter jackshafts for 3 belt drives. - Starter ring gears (Call for your model specific pulley). Made In The U.S.A |