46% More Torque via Intelligent Gear Reduction

Unlike standard starters that rely solely on raw amperage, the Spyke unit utilizes intelligent gear-reduction design. By optimizing the internal gear ratios, this motor generates 46% more cranking torque than a stock 1.2 kW unit. This mechanical advantage allows the starter to spin high-performance motors faster and more consistently, ensuring quick ignition and reducing the risk of “kick-back” that can damage your primary drive and ring gear.

High Performance Without the High Amp Draw

One of the primary benefits of the Spyke 1.4 kW system is its electrical efficiency. While other high-torque starters demand a massive battery upgrade to function, the Spyke Supertorque is designed to perform exceptionally well with a standard battery. By drawing fewer amps to produce more torque, it leaves more energy available for your ignition system to produce a hotter spark during the cranking cycle—a vital feature for both carbureted and EFI models.

Rugged Construction & Premium Components

Every Spyke starter is built for the long haul. It features industrial-grade solenoids and heavy-duty internal gears that are far superior to the plastic or light-duty components found in budget replacements. The unit is housed in a sleek, streamlined body that is available in Chrome, Polished, or Black Wrinkle finishes, allowing you to upgrade your bike’s mechanical reliability without compromising its custom aesthetic.

Fitment and Installation (1994–2006)

This starter is a direct bolt-on replacement for the following Harley-Davidson Big Twin applications:

• Harley Softail (1994–2006): Heritage, Fat Boy, Custom, Springer, and Standard models.
• Harley Touring (1994–2006): Road King, Electra Glide, and Street Glide (2006).
• Harley Dyna (1994–2005): Super Glide, Wide Glide, and Low Rider.
• Note: Does NOT fit 2006 Dyna models. For 1994-up models, use your original O.E. jackshaft bolt during installation.

Advanced Supertorque Gear Reduction

The secret to Spyke’s legendary starting power is its internal gear reduction technology. By utilizing a specific gear ratio to multiply the motor’s force, this starter generates significantly more rotational torque at the primary drive than the original equipment. This mechanical advantage allows it to overcome the heavy resistance of high-lift cams and big-bore cylinders without the “stalling” or “labored” sound common in older stock starters.

Efficiency That Preserves Your Battery

Despite its massive power output, the Spyke 1.4 kW unit is engineered for low-amperage draw. It maximizes every bit of energy from your battery, leaving more voltage available for your ignition system during the cranking cycle. This results in a hotter spark and faster ignition, which is critical for carbureted Evolution engines. It provides high-output performance without immediately requiring a specialized high-CCA battery.

Rugged Construction for Long-Term Reliability

Built to handle the extreme vibration and heat of a vintage V-Twin, the Spyke starter features industrial-grade solenoids and reinforced internal windings. The unit is housed in a compact, sleek body that fits perfectly in the factory location, maintaining the classic look of your 1980s Big Twin while providing modern, professional-grade reliability. Each unit is manufactured to exacting standards to ensure a long service life under the harshest riding conditions.

Fitment and Compatibility (1986–1988)

This starter is designed as a direct replacement for the specific 5-hole mounting configuration used on:

• Harley-Davidson Softail (1986–1988): Heritage, Custom, and Standard models.
• Harley-Davidson Touring (1986–1988): Electra Glide, Tour Glide, and Road King precursors.
• Harley-Davidson FXR (1986–1988): Super Glide II and Low Rider models.
• Replacement Note: Designed for models using the 1986–1988 style starter drive and housing. Available in Chrome or Black finishes.

Supertorque Gear-Reduction Technology

The core of the Spyke advantage is its intelligent gear-reduction design. By optimizing internal gear ratios, this 1.4 kW motor generates up to 46% more cranking torque than a stock Harley starter. This mechanical advantage allows the starter to overcome the heavy resistance of large-displacement pistons and high-lift cams without the “stalling” or “grinding” often associated with factory Hitachi or Prestolite units.

Optimized for Standard Battery Use

While many high-output starters demand a specialized high-amp battery to function correctly, the Spyke 1.4 kW is designed for maximum electrical efficiency. It performs exceptionally well with a standard-sized battery, drawing only the necessary amperage to get the motor spinning. This low-draw, high-output efficiency leaves more battery energy available for your ignition system, resulting in a hotter spark and faster ignition during the cranking cycle.

Precision Fit for 4-Speed Chain Drive Models

This starter is a direct replacement for the specialized configurations found on 1979–1984 Big Twins. It is tailored for the 4-speed primary housings used on chain-drive FLH and FX models (excluding FLT and FXR models). The unit features automotive-industry internals that have been tried, tested, and proven in high-stress environments, ensuring that your vintage restoration or daily rider benefits from modern, reliable technology.

Rugged Durability & Finish Options

Each Spyke starter is built to endure the extreme vibrations and thermal cycles of an air-cooled V-Twin. The housing is compact, providing a clean, sleek look that doesn’t clutter your primary area. Available in chrome, polished, or black finishes, it allows you to maintain the aesthetic of your build while significantly upgrading its mechanical reliability.

Fitment and Compatibility (1979–1984)

The Spyke 1.4 kW Starter (Part # 410110 / 410410) is designed for the following applications:

• Harley FL/FLH Series (1979–1984): Electra Glide models with 4-speed and rear chain drive.
• Harley FX Series (1979–1984): Super Glide, Low Rider, Wide Glide, and Fat Bob models with 4-speed and rear chain drive.
• Engine Type: Shovelhead 74″ and 80″ Big Twins.
• Note: Not for use on rubber-mount FLT/Touring or FXR models, or models converted to rear belt drive.

40% More Torque with Gear Reduction Technology

The secret to the Spyke’s performance is its advanced internal gear reduction system. By utilizing a specific gear ratio, the motor spins at a higher RPM while providing 40% more torque to the primary drive than a conventional starter. This ensures that even the most stubborn 100+ cubic inch motors turn over quickly and consistently, reducing the “grinding” and mechanical stress often associated with high-compression starts.

Efficient Low-Amp Draw Design

Powerful starters usually require massive amounts of current, which can quickly drain a battery. However, the Spyke 1.4 kW is designed for maximum electrical efficiency. It provides superior cranking power with a surprisingly low amperage draw, ensuring that more energy is available for your ignition system to produce a hot spark. This combination leads to faster ignition and less wear and tear on your battery and charging system.

Rugged Construction & Premium Components

Built to survive the intense heat and vibration of a V-Twin environment, the Spyke Supertorque features heavy-duty solenoids and premium internal windings. The clutch mechanism is reinforced to prevent the “spinning” failure common in lesser aftermarket starters. Each unit is housed in a sleek, compact body that fits within the factory location, maintaining the clean lines of your motorcycle while providing a massive boost in reliability.

Fitment and Application

Spyke Supertorque starters are available in various configurations to fit almost every Harley-Davidson era. Popular fitments include:

• Harley Big Twin (1989–1993): Specific models for early Evolution engines.
• Harley Big Twin (1994–2006): The most common application for late Evo and early Twin Cam (except 2006 Dyna).
• Harley Sportster: Models available for 1981–2026 Evolution Sportsters.
• Finish Options: Available in high-luster chrome or a stealthy black powder coat to match your bike’s style.