Evolution Powersports - Kawasaki Teryx 4 H2 / Teryx 5 H2 TAPP Roller Primary Clutch

The TAPP Primary Clutch is an engineered upgrade for the Kawasaki H2, replacing outdated OEM technology with modern adjustability, improved belt life, and smoother operation. Designed for the H2's high-revving nature, it performs across all riding styles, tire sizes, and elevations.

Key Features:

• Roller Spider Design: Creates less friction in the movable sheave for more responsive setup
• Center Bearing: Black nitrate coating adds hardness, prevents rust, and reduces friction for smoother operation
• Larger Roller: Increased from 2mm to 3mm for improved longevity under high horsepower and harsh conditions
• Post: Updated with additional material and heat-treating to prevent shaft slipping, necessary for high-horsepower and drag racing builds
• Moveable Sheave: Added material reinforces clutch towers for greater load-bearing capability
• Billet Aluminum Clutch Cover: Larger windows allow additional weight without cover modification
• Fan Blade Kit: Included to reduce operating temperature by forcing cooler air to internal components
• Calibrations: Includes settings for Stock, EVP Stage 3-91, and Stage 4-100 tuning at 2200 RPM and 3000 RPM engagement

The TAPP Primary delivers faster acceleration, higher top speeds, improved zero-to-60 performance, and no clutch chatter. It runs cooler than comparable clutches, extending belt and clutch life. Works with stock H2 secondary clutch or TAPP Secondary Clutch (recommended).

Performance Benefits:

• Durable Performance: Built from billet aluminum and high-tech materials to withstand extreme heat. Handles 200–500+ hp across all terrain and riding styles including drag racing, duning, trail riding, rock crawling, and desert racing
• Adjustable and Versatile: Two-sided ramps swap in minutes with an Allen wrench. External clickers adjust shift pattern easily. Roller arms allow mass adjustment, with various springs available for fine-tuning
• Cooler Operating Temps: High-tech materials, extensive venting, and multi-angle curved sheaves reduce belt and clutch temperatures
• Instant Throttle Response: Centralized mass, lightweight low-inertia design, and custom ramp angles deliver unbeatable belt grip and instantaneous power delivery
• Smooth, Quiet Operation: Ramp-based arm system minimizes vibration and noise compared to traditional flyweight designs

Adjustability:

RPM engagement adjusts by flipping ramps from side A to side B (600–800 RPM increase per ramp pair). Adjustable clicker bolts provide 50-RPM increment fine-tuning. Works with non-EVP tunes and easily adapts as your H2's power level evolves.

Included: Full standard weight kit plus tungsten TAPP Clutch Race Weights (set of 8).

Note: All EVP Calibrated TAPP Clutch primaries may require minor calibration adjustments. Reference instructions or contact technical support for tuning assistance.

Calibration Guide:

Four main adjustable components:

• Ramp Profile: Pre-chosen for generic use; change only with experienced tuning
• Ramp Angle: Adjusted externally via Quick Shift Bolts. Higher numbers increase RPM. Always adjust in pairs across from each other to maintain balance
• Roller Size: Available in standard, 1mm oversize, and 2mm oversize. Larger rollers quicken low-end RPMs but shift out quicker and lower full shift RPM. Adjust in pairs only
• Weight Adjustment: Add weight to lower RPM, remove to raise RPM. Adjust via set screws in arms and washers on roller bolt. Always adjust evenly in pairs to prevent imbalance

Fitment: 2026 Kawasaki Teryx H2 Models