Js Motorsports

What Js Motorsports does

JS Motorsport is a privately held, founder-owned design shop based in Sanger, California, founded in 1986 by Jim Schmidt. The company specialises in high-performance aftermarket parts and technical resources for classic British twin motorcycles, with a primary focus on Norton Commando, Atlas, and Dominator platforms and secondary coverage of Triumph 650, BSA, and Matchless G50 components. Its core product portfolio spans the complete engine internals value chain: lightweight forged aluminum pistons (1/3 lighter than stock, available from 750cc to 1007cc), proprietary 6.4-inch longer-length Carrillo connecting rods with bushless DLC-coated pins, JS0-JS4 plasma-nitrided billet steel camshafts with asymmetric smooth-ramp profiles, beehive valve spring kits with Black Diamond valves, raised D-port floor shoes, complete gasket sets, Turcite fork bushings and Ikon shock suspension upgrades, Keihin FCR carb kits, reed valve crankcase breathers, ARP head and cylinder bolts, Joe Hunt magnetos, and one-piece Norton crankshafts. The company also sells Norton race manuals and AutoCAD monoshock chassis design plans.

The business operates exclusively as a direct-to-consumer e-commerce storefront (jsmotorsport.com), with phone (559-875-0659) and email ([email protected]) sales channels, shipping to enthusiasts and racers across at least eleven countries including the United States, United Kingdom, Australia, Canada, Germany, France, Sweden, Finland, Belgium, the Netherlands, Japan, and New Zealand. Pricing is unit-based and transactional, with parts ranging from $5 (shims) to $1,799 (carb kits), and no recurring or subscription revenue. The key strategic technology partnership is with Carrillo Industries, which co-manufactures the proprietary connecting rods after years of joint research and design.

Revenue mechanics are one-time parts sales to a long-tail of individual classic motorcycle enthusiasts and amateur racers; named case-study customers include land-speed racers, roadracers, flat trackers, and cafe racers worldwide, with documented championships at Aintree (2023), the Orange County Classic Bike Show (2024), Australian classic unlimited (2017), the Swedish Cup Formula 750 (2017), and the AHRMA Bears Championship (2017). The firm is bootstrapped with no external investment, holds no patents, and has 1-10 employees, positioning it as a durable, niche specialist rather than a venture-scalable enterprise.

Name

Js Motorsports

Legal name

JS Motorsport

Website

https://jsmotorsport.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

JS Motorsport is a founder-owned California design shop that designs, manufactures, and sells direct-to-consumer high-performance aftermarket engine and suspension parts — pistons, Carrillo rods, camshafts, valves, carbs, and chassis plans — for classic Norton, Triumph, BSA, and Matchless motorcycle enthusiasts and racers worldwide.

Ownership category

akta.pro rank

Product category

Motorcycle Performance Parts

NAICS

Motorcycle, Bicycle, and Parts Manufacturing (336991), Other Motor Vehicle Parts Manufacturing (336390)

SIC

Motorcycles, Bicycles & Parts (3751), Motor Vehicle Parts & Accessories (3714)

akta.pro primary industry

Aftermarket Performance & Tuning Products Manufacturing (Intakes/Turbos/ECU Tuners/Superchargers) (IMACANAN)

Keywords

• Classic motorcycle parts
• Performance engine components
• Norton motorcycle upgrades
• Forged pistons rods
• Racing motorcycle parts

Headquarters

HQ city

Sanger

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Marketing or Sales, Operations, Technology or R&D

Revenue model

1. Direct E-commerce Parts Sales: The company sells high-performance motorcycle parts directly to consumers through its e-commerce website. Products include pistons ($499-$799), connecting rods ($649-$729), camshaft kits ($599-$1,099), valve spring kits ($84-$389), and complete engine component packages. All sales are one-time transactional purchases with no recurring revenue component.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Js Motorsports designs, develops, and sells high-performance aftermarket parts for classic Norton motorcycles, including forged aluminum pistons, proprietary longer Carrillo connecting rods, radius-profile camshafts, beehive valve spring kits, suspension upgrades, carburetor kits, and supporting engine accessories. The company focuses specifically on Norton Commando, Atlas, Dominator and related British twins, combining proprietary component design with road and track validation.

Product overview

JS Motorsport is a design shop specializing in high-performance parts for Norton motorcycles (Commandos, Atlas, Dominators) and related brands (Triumph, BSA, Matchless). The product portfolio centers on engine internal components including forged aluminum pistons (1/3 lighter than stock), lightweight Carrillo connecting rods with DLC-coated bushless pins, plasma nitrided camshafts with asymmetrical profiles (JS0-JS4), and beehive valve spring kits. Supporting products include port floor shoes for improved flow, complete gasket sets (copper, silicone, fiberglass-reinforced), suspension upgrades (Turcite bushings, Ikon shocks), Keihin FCR carburetor kits, reed valve breathers, ARP head/cylinder bolts, and Joe Hunt magnetos. The company also offers technical manuals and frame design plans. All products undergo testing on road and track to enhance performance, reliability, and rideability.

Differentiator

Problem solved

Functional benefit

Products and services

• Lightweight Forged Pistons High-performance forged aluminum pistons, one-third lighter than stock cast aluminum pistons, for Norton motorcycles across 750cc, 850cc, 920cc, and 1007cc displacements in flat top and domed configurations with compression ratios from 8:1 to 12:1. Compatible with iron and Nikasil lined cylinders, with Wiseco and JE brand options available. Sold as complete piston sets, individual rings, DLC pins, and skirt coating upgrades for classic Norton owners and racers.
• Proprietary Connecting Rods Lightweight forged Carrillo connecting rods in standard 6.4 inch length for 89mm stroke engines, 6.57 inch short stroke rods for 80.4mm stroke, ultralight variants, and Triumph 650 bushless rods. Feature bushless design with DLC-coated 0.708 inch diameter pins and weigh 105 grams (standard) or 95 grams (ultralight) on the small end. Sold individually and as sets to Norton and Triumph engine builders.
• Camshafts and Cam Kits Plasma nitrided billet steel camshafts with asymmetrical profiles designed for gentle valve seating, featuring multiple stages (JS0-JS4) covering street through full racing applications. Sold as individual cams, drop-in kits with reground lifters, or complete kits with lightweight lifters, bronze blocks, and pushrods. Compatible with 1-1/8 inch radius lifters for broader cam nose profiles.
• Valves, Springs and Head Components Beehive valve spring kits with conical springs, Black Diamond valves with stellite tips, titanium retainers, valve guide seals, shims, bottom washers, rocker spindle covers, and DLC-coated rocker spindle sets. Lighter and more efficient than dual spring setups, validated to 9,000 RPM operation. Sold as individual components or complete valve and spring kits.
• Intake and Exhaust Port Components Raised intake and exhaust D-port floor shoes in aluminum and stainless steel for improved cylinder head flow, plus Teflon heat-insulating gaskets and Narley port AutoCAD drawings. Sold to Norton engine builders seeking improved port flow and combustion efficiency.
• Engine and Transmission Gasket Sets Complete engine and transmission gasket sets including rocker cover gaskets, timing cover gaskets, copper base and head gaskets, Viton O-rings, and fiberglass-reinforced silicone gaskets. Sold as full sets for Norton engine rebuilds.
• Suspension Upgrades Norton motorcycle suspension upgrades including Turcite low-friction fork bushings for smoother suspension action and longer service life, aluminum fork sleeves, fork extensions, damper upgrade kits, and Ikon shock absorbers. Designed for Norton Commando and Featherbed frame applications.
• Keihin FCR Carburetor Kits Keihin 33mm FCR small body carburetor kits for Norton Commandos and Featherbed frames, including performance tuning components such as primer chokes, plumbing kits, air cleaners, intake manifolds, and rubber boots. Sold as complete kits with Aftermarket or Keihin branded carb bodies.
• Reed Valve Crankcase Breathers One-way reed valve crankcase breathers featuring stainless spring steel BMW-style reed valves and 7075 aluminum bodies. Available for 750 left case vent, 850 timing case mount, and universal inline configurations. Designed to reduce crankcase pressure and oil consumption on Norton engines.
• ARP Head and Cylinder Bolts ARP stainless steel head and cylinder bolts with 180,000 psi tensile strength. Includes reduced shank fluted designs for improved thread retention and alignment, plus Time-Sert thread repair kits. Sold to Norton engine builders needing higher-strength fasteners than stock.
• Joe Hunt Magnetos and Ignition Components Joe Hunt magnetos for Norton Atlas, Dominators, pre-unit Triumphs, and BSAs, including replacement coils and condensers. Sold as ignition system upgrades and replacement components for classic British motorcycles.
• Norton One-Piece Crankshafts and Related Engine Parts One-piece Norton crankshafts, DLC-coated Triumph 650 rocker spindles, forged bushless Carrillo rods for Triumph 650, and lightweight Matchless 90mm piston and rod assemblies. Sold to builders of Norton, Triumph, and Matchless competition engines.
• Norton Race Manuals and Frame Design Plans Norton race manual and Norton Monoshock Racing Chassis plans, delivered as digital download or thumb drive, including AutoCAD drawings for one of the fastest Norton roadracers. Sold as technical reference material for racers and custom builders.

Quantifiable outcome

• Approx 7 more HP from switching to lightweight pistons and longer rods
• +3 more outcomes

Named customers9 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Carrillo IndustriescoreTechnology or IntegrationPartnership with Carrillo Industries to develop and manufacture proprietary lightweight connecting rods. Several years of research, design, and negotiation went into producing JS-branded rods with bushless design and DLC-coated pins.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Direct peers

• Hitchcock's Motorcycles: UK-based Norton specialist selling a comprehensive catalog of new-old-stock and reproduction parts for Norton Commandos and other British classics. Comparable to JS Motorsport as a direct-to-consumer Norton parts supplier with a long-established customer base.
• Fritz Wündisch (Wündisch Norton Parts): German specialist in vintage Norton parts and reproductions. Directly comparable niche focus and mail-order model, with strong European customer reach — overlapping with several of JS Motorsport's international racing customers.
• Old Britts: US-based classic British motorcycle parts supplier with a wide Norton/Triumph/BSA catalog. Comparable to JS Motorsport on the US domestic Norton parts market, but with a broader, less performance-engineered assortment.
• RGM Motorcycles: UK Norton dealer, parts supplier, and restorer offering a deep catalog of Commando and Atlas/Dominator parts. Overlaps with JS Motorsport on the Norton performance and restoration niche but with broader workshop/service capabilities.
• Andover Norton: The largest dedicated Norton parts, service, and race-prep specialist in the world, based in the UK. Directly comparable to JS Motorsport as a one-stop source for Norton Commando, Atlas, and Dominator performance and restoration parts, but at significantly larger scale with a global dealer and parts network.
• SRM (originally Norton Villiers Service): Classic British motorcycle specialist focusing on Norton twins — supplying parts, components, and engineering services. Highly comparable to JS Motorsport in mission and customer base, with stronger OEM-style infrastructure.
• Walridge Motors: Canadian classic British bike parts retailer serving Norton, Triumph, and BSA owners. Comparable to JS Motorsport in cross-platform British classic parts, though Walridge is more parts-distribution oriented than engineering-led performance.
• Norvil (Don et al. / Norton Villiers aftermarket): Long-running UK Norton aftermarket parts specialist focused on Commando and pre-Commando models. Directly comparable to JS Motorsport's vintage Norton parts focus, though typically with broader coverage and lower performance-tier depth.

Others

• Kibblewhite Precision Machining: Manufacturer of Black Diamond valves and related valvetrain components — the brand JS Motorsport resells under its valve/spring kits. Kibblewhite is an adjacent ecosystem participant rather than a competitor, but the valvetrain category puts them in the same consideration set for Norton builders.
• Wiseco Performance Products: Major US manufacturer of high-performance aftermarket pistons and engine components used across motorcycle, automotive, and powersports. Listed as a supplier-brand option on JS Motorsport's own piston product pages, making it both an upstream enabler and a broader-market competitor for performance piston share.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/js-motorsports

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Js Motorsports