🏍️ GENUINE KYB RED REAR SHOCKS FOR HONDA SH300 / SH350 / YAMAHA FORZA 300 (390MM + 10MM) K-ALPHA JAPANESE TECHNOLOGY
When you operate a powerful, large-displacement machine like the Honda SH350i, SH300i, or Yamaha Forza 300, the sheer weight of the chassis combined with overly stiff stock shocks is always the culprit behind those exhausting "clunks" every time you cross urban speed bumps. Not to mention, at high speeds or when carrying a passenger and luggage, the rear end clearly exhibits floating and wobbling, causing you to lose confidence and smooth steering control.
Fully understanding this pain point, Monkey89 brings you the perfect solution for transforming both suspension performance and appearance: KYB K-Alpha Red Rear Shocks (390mm). This premium Aftermarket piggyback twin shock line features an energetic Racing Red colorway, helping your beloved ride glide through the streets with buttery smoothness and rock-solid stability on every journey.
💡 Fitment Note: Please use the compatibility search tool directly on the Monkey89 website—simply enter your motorcycle's make, model, and year to get instant results.
⚙️ TECHNICAL SPECIFICATIONS & ADJUSTABILITY
🚀 REAL-WORLD PERFORMANCE
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🛡️ Smooth Urban Commuting & Smart Economical Solution: By focusing maximally on actual daily commuting needs and eliminating unnecessary, complex hydraulic adjusters, the K-Alpha line offers an incredibly reasonable, budget-friendly price. The internal hydraulic valving is softly tuned by KYB to absorb all impact forces from manhole covers and potholes, completely erasing spine-jarring clunks and delivering a plush stroke that vastly outperforms stock shocks.
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🔥 Dynamic Racing Red – A Breakthrough for Large Displacement Aesthetics: In stark contrast to the subtle Stealth black colorway, SKU RG210052 features a vibrant red spring paint bursting with sports energy. This standout mechanical accent illuminates the rear undercarriage, creating a striking contrast with the massive engine block. It makes your luxury scooter look youthful, edgy, and incredibly eye-catching as you cruise the city.
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💨 Racetrack-Standard Free-Piston System: This premium technology completely isolates the hydraulic fluid from the high-pressure compressed Nitrogen gas in the piggyback reservoir. As a result, the damping oil does not aerate (foam) or overheat even under the continuous heavy load of a large-displacement chassis, keeping the rear wheel firmly planted and completely eliminating rear-end wobbling or floating at high speeds.
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🔧 Spring Preload Adjustment: Allows you to proactively manage the stiffness/softness of the spring to suit the actual payload. For gentle solo rides, loosen the spring for maximum plushness. When carrying a passenger or heavy luggage for a long tour, simply increase the spring compression to firmly support the rear end without bottoming out the stroke travel.
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📐 Valuable Length Adjuster Feature: You can freely extend the shock body from 0 to 10mm (+10mm) compared to the standard 390mm specification. This feature allows you to proactively adjust for a higher ground clearance or create a taller, more aerodynamic, and sportier riding posture based on personal preference.
🛠️ COMPATIBILITY & FITMENT
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✅ Standard Spec Fitment (Plug and Play): The product features a load-bearing bottom Clevis mount that tightly hugs the engine block and a top Eyelet mount that perfectly matches the original bolt specifications of Maxi-Scooters including: Honda SH300i, Honda SH350i (all genuine domestic and imported generations), and Yamaha Forza 300. The standard 390mm height ensures optimal geometric balance for the chassis system; you simply secure them directly to the scooter without needing custom load-bearing CNC brackets.
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✂️ ABSOLUTELY NO FAIRING MODIFICATIONS REQUIRED: Because the original structure of luxury scooters like the SH350i, SH300i, or Forza 300 was already designed by the manufacturer with an incredibly spacious rear wheel well to accommodate cast-in piggyback shocks. When you upgrade to these KYB K-Alpha Red shocks, the entire shock body and piggyback reservoir will perfectly fit into the existing space. You can easily install them yourself without trimming or cutting any plastic fairing parts, maintaining 100% of the scooter's sharp, original aesthetic integrity.
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📍 Installation Position: Direct replacement for the symmetrical rear twin shock absorbers on the motorcycle.
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