Sputhe Motorcycle Parts
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Sputhe®Front Flat Top Piston (4201B)Front Flat Top Piston (4201B) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$166.50 - Sputhe®Piston Wrist Pins (4401)Piston Wrist Pins by Sputhe®. Sputhe piston pins are machined from solid billet E52100 bearing steel having a tensile strength of 300,000 psi. They are heat treated to a hardness of 54C-56C Rockwell. They are shot-peened and...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$30.00
- Sputhe®Rear Dish Top Piston (4204A+020)Rear Dish Top Piston (4204A+020) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Dish Top Piston (4204A+010)Rear Dish Top Piston (4204A+010) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Dish Top Piston (4204A+032)Rear Dish Top Piston (4204A+032) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Dish Top Piston (4204A+005)Rear Dish Top Piston (4204A+005) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Dish Top Piston (4204A)Rear Dish Top Piston (4204A) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Dish Top Piston (4203A)Rear Dish Top Piston (4203A) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Dish Top Piston (4203A+032)Rear Dish Top Piston (4203A+032) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Dish Top Piston (4203A+020)Rear Dish Top Piston (4203A+020) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Dish Top Piston (4203A+010)Rear Dish Top Piston (4203A+010) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Dish Top Piston (4203A+005)Rear Dish Top Piston (4203A+005) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Flat Top Piston (4203B+032)Rear Flat Top Piston (4203B+032) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Flat Top Piston (4203B+020)Rear Flat Top Piston (4203B+020) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Flat Top Piston (4204B)Rear Flat Top Piston (4204B) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Flat Top Piston (4204B+032)Rear Flat Top Piston (4204B+032) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Flat Top Piston (4204B+020)Rear Flat Top Piston (4204B+020) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Flat Top Piston (4204B+010)Rear Flat Top Piston (4204B+010) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Flat Top Piston (4204B+005)Rear Flat Top Piston (4204B+005) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Flat Top Piston (4203B+010)Rear Flat Top Piston (4203B+010) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Flat Top Piston (4203B+005)Rear Flat Top Piston (4203B+005) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Rear Flat Top Piston (4203B)Rear Flat Top Piston (4203B) by Sputhe®. All pistons are machined from zero silicon, high nickel T7 stabilized aluminum forgings. The cam and barrel taper skirt configurations were developed by CTEM (Computer Thermal Expansion...Built to deliver excellent levels of quality and convenienceMade with the use of the most innovative technologies$171.50
- Sputhe®Spiroloc Pin Clips (4408)Spiroloc Pin Clips by Sputhe®. Sputhe piston pins are machined from solid billet E52100 bearing steel having a tensile strength of 300,000 psi. They are heat treated to a hardness of 54C-56C Rockwell. They are shot-peened and...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$9.00
- Sputhe®Cylinder Stud Set (4603D)Cylinder Stud Set by Sputhe®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$95.00
- Sputhe®Front Posi-Trac Dyna Chassis Stabilizer (9100F)Front Posi-Trac Dyna Chassis Stabilizer by Sputhe®. Sputhe introduces the PosiTrac Dyna Chassis Stabilizer, which provides lateral positioning of the drive train for all Dyna model Harley-Davidson motorcycles from 1991 to the present....Quick and easy bolt on installationNo chassis modification required$189.00
- Sputhe®Front and Rear Posi-Trac Dyna Chassis Stabilizer Set (9100)Front and Rear Posi-Trac Dyna Chassis Stabilizer Set by Sputhe®. Sputhe introduces the PosiTrac Dyna Chassis Stabilizer, which provides lateral positioning of the drive train for all Dyna model Harley-Davidson motorcycles from 1991 to...Quick and easy bolt on installationNo chassis modification required$369.00
- Sputhe®Point Cover (7451B)Point Cover (7451B) by Sputhe®. Machined from 6061-T6 billet aluminum and polished. Screws included. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$18.00
- Sputhe®Point Cover (7451)Point Cover (7451) by Sputhe®. Machined from 6061-T6 billet aluminum and polished. Screws included. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$13.50
- Sputhe®Point Cover (7451SB)Point Cover (7451SB) by Sputhe®. Machined from 6061-T6 billet aluminum and polished. Screws included. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$18.00
- Sputhe®Point Cover (7451S)Point Cover (7451S) by Sputhe®. Machined from 6061-T6 billet aluminum and polished. Screws included. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$18.00
Sputhe is a reputable American company whose name has been known in the motorcycle world since the early 1970s. It was originally engaged in designing and manufacturing steel molds, patterns, and dies for medical, food processing, and aerospace industries. But in 1973, the company started using its strong engineering base and production facilities for developing and manufacturing advanced technical solutions for Harley-Davidson motorcycles. Many achievements belong to Alan Sputhe, the company's founder and talented engineer who designed dual-carburetor aluminum heads, cast aluminum big bore cylinders, and many other parts.
Today, Sputhe manufactures a variety of aftermarket motorcycle parts meant to improve the bike's performance. Deep knowledge and cutting-edge American made CNC machinery allow the company to analyze the efficiency of some stock components and develop their improved alternatives, or even offer new solutions. In particular, Sputhe cylinders for some H-D and Buell models are built from 383 aluminum alloy, with a sleeve made out of high-tensile chrome-moly steel called Lascomite, which makes the cylinders stronger than stock. As for Sputhe pistons, they are made out of tempered and stabilized nickel-aluminum forgings and feature an improved skirt configuration developed with the help of computer thermal expansion modeling.
Sputhe stabilizer kits provide the lateral positioning of the drivetrain for the famous Dyna line of H-D motorcycles, produced since 1991. Besides, the brand is known for many improved transmission parts, complete transmissions, and transmission cases. For instance, there is the Sputhe gearbox case allowing for adapting a 5-speed H-D Evo transmission to the older 4-speed frames sold in the 1970s. The Sputhe motorcycle parts lineup also includes lots of other products such as aluminum swing arms, piston rings, pins, shift levers, and so on, and many of them are available in our online store.