Barnett Performance Products - Harley® Belt Drives

Barnett Tool & Engineering was founded in 1948 by Afton and Charlie Barnett. Charlie started out by making control cables for motorcycles. He added items to the line that he imported from England and later invented products of his own. The first part he invented was our #37 cable clamp which they still make today. Over the years he added his own throttles, levers, and fittings continually expanding the business. Charlie first started making clutch plates in the 1950's with components for Harley Davidson and European bikes. In 1991, Barnett was the first motorcycle clutch manufacturer to use Kevlar friction material. In 1993 we began using CNC machined aluminum friction plate cores that feature wider drive tabs to reduce wear on clutch baskets. Newer innovations include our "CF" series Carbon Fiber friction plate material and the Scorpion billet clutch assembly for Harley Davidson. In 1999, Barnett went through a complete makeover when we moved to our new facility in Ventura, California. Not only did they expand the size of our facility, but added new CNC machines and a streamlined assembly line, shipping line, and computers with the latest high tech systems. The move was performed in order to continue to produce top quality products in a timely and professional manner. All Barnett products are made in the U.S.A. with the finest materials available. Barnett is, and always has been, family owned and operated. While Afton and Charlie have since passed away, the family tradition continues. Today Afton and Charlie's daughter, Colleen, and husband Mike Taylor own and operate Barnett. A third generation of family members, son Chris Taylor, granddaughter Jennifer Rastutis and her husband Xavier Romero are also involved in maintaining the family tradition. They are a family of motorcycle riders and racers dedicated to making the world's finest clutches and cables. With over 55 years of experience, they are your Power Transfer and Control Cable specialists!

Barnett Performance Products - Harley® Belt Drives - Barnett  Performance Products - Billet Primary Covers for Harley Davidson Motorcycles

Barnett Performance Products - Billet Primary Covers for Harley Davidson Motorcycles

Barnett’s Big Twin primary covers are designed for use with the Barnett Scorpion lock-up clutch assembly. The derby cover is re-positioned and oversize to make clutch plate removal/installation and lock-up tuning easy by simply removing the derby cover. This cover is CNC machined from 6061-T6 billet aluminum and available in a polished or chrome plated finish for a show quality appearance.  
Part # Year(s)
38470P (polished) 1990-05 Softails/1990-05 Dyna Glides w/ fwd controls
37470C (chrome) 1990-05 Softails/1990-05 Dyna Glides w/ fwd controls
38570P (polished) 1994 & Later FLT
38570C (chrome) 1994 & Later FLT
38670P (polished) 1990-93 FXR/FLT
38670C (chrome) 1990-93 FXR/FLT

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion 3in Open Belt Drive with Front Pulley Bearing Support for Harley Davidson Softail  Motorcycles

Barnett Performance Products Scorpion 3in Open Belt Drive with Front Pulley Bearing Support for Harley Davidson Softail Motorcycles

CNC machined from 6061-T6 billet aluminum. Includes Scorpion lock-up clutch to provide 100% more surface area and less clutch lever effort. Great for street or strip- stock to high performance motors.  1990 & Later Softails

Price: £2369.00 ex VAT

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion 3in  Belt Drive with Outside Bearing Support for Harley-Davidson Softail Motorcycles

Barnett Performance Products Scorpion 3in Belt Drive with Outside Bearing Support for Harley-Davidson Softail Motorcycles

CNC machined from 6061-T6 billet aluminum. Includes Scorpion lock-up clutch to provide 100% more surface area and less clutch lever effort. Great for street or strip- stock to high performance motors.  1990 & Later Softails

Price: £2464.00 ex VAT

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion Clutch using HD Hydraulic Clutch in Primary for Harley Davidson 1998 and later Big Twin  Motorcycles

Barnett Performance Products Scorpion Clutch using HD Hydraulic Clutch in Primary for Harley Davidson 1998 and later Big Twin Motorcycles

Fits 1998 & later Big Twin primarys using Harley Davidson hydraulic clutch.   
38523A 1999 & Later Touring Models
38523B 2000 & Later Softail Models Except FXSTB/I&FXSTD/I

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion Lock-up  Pressure Plate for Scorpion Clutches for Harley-Davidson  1936-Early 84 Big Twin, 1998 & Later Big Twin, 1990-97 Big Twin Motorcycles

Barnett Performance Products Scorpion Lock-up Pressure Plate for Scorpion Clutches for Harley-Davidson 1936-Early 84 Big Twin, 1998 & Later Big Twin, 1990-97 Big Twin Motorcycles

For use on existing Scorpions with open primary or Scorpion Primary Cover
•Direct-Bolt-on
•Progressively increases pressure as
•Easily adjustable by adding or subtracting weights on 6 pressure arms (supplied)
•CNC machined, 6061-T6 billet aluminum  
38221 1936-Early 84 Big Twins
38421 1990-97 Big Twins
38521 1998 & Later Big Twins

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion Clutch for Harley Davidson 1936 - Present Big Twin Motorcycles

Barnett Performance Products Scorpion Clutch for Harley Davidson 1936 - Present Big Twin Motorcycles

For use with open primary or Scorpion Primary Cover
•Progressively increases pressure as RPMs increase
•Easily adjustable by adding or subtracting weights on 6 pressure arms (supplied)
•CNC machined, 6061-T6 billet aluminum  


38222 1936-Early 84 Big Twins
38422 1990-97 Big Twins
38522 1998 & Later Big Twins

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion Clutch for Harley Davidson 1971-83 Ironhead Sportster Motorcycle

Barnett Performance Products Scorpion Clutch for Harley Davidson 1971-83 Ironhead Sportster Motorcycle

Fits the 1971-83 1000cc Ironhead Sportster.

Price: £482.00 ex VAT

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion Clutch for Harley Davidson 1984-90 & 1991-later Sportster Motorcycle

Barnett Performance Products Scorpion Clutch for Harley Davidson 1984-90 & 1991-later Sportster Motorcycle

Part#37320. Fits the 1984-90 4-speed Evo 883/1100/1200 Sportster.
Part#37420. Fits the 1991 & later 5-Speed EVO Sportster, Buell 883/1200.

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion Clutch for Harley Davidson 1936 to early 84 Big Twin Motorcycles

Barnett Performance Products Scorpion Clutch for Harley Davidson 1936 to early 84 Big Twin Motorcycles

Part#38220. Fits 1936- early 84 Big Twins. Features a double roller bearing to greatly improve Shovelhead clutch performance.

Price: £482.00 ex VAT

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion Clutch for  Harley Davidson 1986-89 Big Twin Motorcycles

Barnett Performance Products Scorpion Clutch for Harley Davidson 1986-89 Big Twin Motorcycles

Part#38330.  Fits 1986-89 Big Twins.

Price: £482.00 ex VAT

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion Clutch for Harley Davidson 90-97 Big Twin Motorcycles

Barnett Performance Products Scorpion Clutch for Harley Davidson 90-97 Big Twin Motorcycles

Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products Scorpion Clutch for Big Twin Primary Harley Davidson Motorcycles 1998 - Later

Barnett Performance Products Scorpion Clutch for Big Twin Primary Harley Davidson Motorcycles 1998 - Later

Part#38520. Fits 1998 & later style Big Twin primary. 

Price: £482.00 ex VAT

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Barnett Performance Products - Harley® Belt Drives - Barnett Performance Products  Scorpion Clutch for Harley Davidson 90-97 Big Twin Motorcycles

Barnett Performance Products Scorpion Clutch for Harley Davidson 90-97 Big Twin Motorcycles

Part#38420-1.  Fits 1990-97 style Big Twin primary. One inch thicker capacity clutch pack; 16 Frictions/17 Steels 

Price: £514.00 ex VAT

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Return to Open Belt Drive primary


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