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Drivetrain› Clutches and Components

Aftermarket Assassins

S2 Clutch Kit

Name: S2 Clutch Kit
Brand: Aftermarket Assassins
SKU: 102-1017

$356.47

SKU: 102-1017

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Aftermarket Assassins S2 Clutch Kit is designed for 2020-2024 Kawasaki KRX 1000 models. This kit aims to improve acceleration, clutch response, and low-end feel for various terrains including trails, dunes, mud, and rock crawling. It addresses OEM clutch weight issues, offering through-hardened, adjustable clutch weights for enhanced longevity and performance.

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The Aftermarket Assassins S2 Clutch Kit is engineered to significantly enhance the performance of your Kawasaki KRX 1000. This kit directly addresses the factory's detuned timing map and lean fuel curve, unlocking substantial horsepower gains. Users can expect quicker throttle response, improved acceleration, and a more efficient power delivery to the rear wheels, making the machine more responsive on trails, in dunes, or during mudding. The kit includes AA Recoil magnetic adjustable clutch weights, featuring a custom profile and a nitrocarburizing coating for superior wear resistance and surface lubricity. These weights are designed with more tip weight mass, leading to harder belt grip and faster acceleration while maintaining smooth low-end engagement suitable for crawling. The magnetic adjustability allows for tuning to various tire sizes, modifications, and future upgrades, with the ability to adjust from 84-100 grams and up to 120 grams for turbo applications using optional slug magnets. The kit also includes a dark green primary spring and a setup guideline. This clutch kit is specifically designed for 2020-2024 Kawasaki KRX 1000 models. It is important to note that 2025 models use a different 3-arm clutch system and require a separate listing. The product enhances performance by optimizing the primary clutch, with the stock secondary clutch generally working well. Peak RPM at 50 MPH should be checked and set to 7000-7200 RPM for optimal performance.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	Aftermarket Assassins
Part Number	102-1017
Category	Drivetrain

Videos

AA KRX S2 Clutch Kit Installation

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Aftermarket Assassins clutch weight adjustment

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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