Andrews Manual Transmission Gear Set
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Andrews 201145 First Gear Close-Ratio Gear Set 2.60:1 for Harley-Davidson Big Twin
Andrews 255580 27-Tooth Countershaft Drive Gear for 4-Speed Harley-Davidson Sportster
Representative Photo, actual item may vary
Andrews 299103 Mainshaft 3rd Gear & Countershaft 2nd Gear for Harley 5-Speed XL
Andrews 299102 Mainshaft 2nd Gear Countershaft 3rd Gear 24-Tooth 5-Speed Sportster
Representative Photo, actual item may vary
Andrews Manual Transmission Gear Sets: Precision-Engineered Harley-Davidson Performance
When it comes to rebuilding or upgrading the heart of a Harley-Davidson transmission, few names carry as much weight as Andrews Products. With decades of experience designing high-performance drivetrain components specifically for American V-twin motorcycles, Andrews has earned a reputation among builders, racers, and serious enthusiasts as a go-to source for transmission internals that deliver both durability and improved performance.
What Sets Andrews Gear Sets Apart
Andrews Manual Transmission Gear Sets are designed as direct, high-quality replacements and performance upgrades for Harley-Davidson transmissions. Each gear set is precision-machined from high-grade steel, with tight tolerances that help eliminate the slop and hesitation that can develop in worn OEM gearboxes over time. The result is a crisper, more positive shift feel — something that riders who spend serious miles in the saddle will notice immediately.
One of the hallmarks of Andrews gear sets is their focus on close-ratio gearing. Close-ratio configurations keep the engine operating closer to its power band between shifts, which translates to stronger acceleration and a more responsive ride, whether you're navigating city streets or pushing hard on an open highway. For performance builds where the stock transmission ratio spread feels too wide, Andrews gear sets offer a meaningful mechanical upgrade rather than a cosmetic one.
Built for V-Twin Applications
Andrews Products has focused almost exclusively on the Harley-Davidson and Big Twin V-twin market, which means their gear sets are engineered with the specific demands of these platforms in mind. Rather than offering a one-size-fits-all solution, Andrews gear sets are application-specific — designed to fit correctly and perform optimally within the known tolerances and load characteristics of Big Twin and Sportster transmissions. This level of specialization is what separates Andrews from generic aftermarket suppliers.
Whether you're rebuilding a worn five-speed, upgrading a six-speed, or putting together a high-performance custom transmission, Andrews gear sets provide a proven foundation. Their components are widely used by professional transmission builders and machine shops, a testament to the consistency and quality that the brand delivers.
Why Choose Andrews for Your Transmission Build
- Precision Machining: Tight tolerances for smooth, reliable engagement and long service life.
- Close-Ratio Options: Keep the engine in its power band for stronger, more responsive acceleration.
- Application-Specific Fitment: Engineered specifically for Harley-Davidson Big Twin and Sportster transmissions.
- Trusted by Professionals: A preferred brand among experienced transmission builders and performance shops.
- Decades of V-Twin Expertise: Andrews has specialized in American V-twin drivetrain components for generations.
If you're serious about your transmission rebuild or performance upgrade, Andrews Manual Transmission Gear Sets represent a smart investment in quality, fit, and long-term reliability. Explore the full range of Andrews Products or browse all available Manual Transmission Gear Sets to find the right solution for your build.