Royal Enfield 591512/B Main Spring – Genuine Front Fork Shock‑Absorber Main Spring for Bullet 350/500 & Classic 350/500 UCE EFI

Royal Enfield 591512/B Main Spring Shocker Spring Front Shocker

Fits Classic 500 Classic 350

Discover the Royal Enfield 591512/B Main Spring, the genuine OEM main shock absorber spring for front forks. Sourced directly from Royal Enfield’s parts catalogue, this Certified OEM main spring ensures perfect factory spec fit and performance. It supports Bullet 350 UCE & EFI, Bullet 500 UCE/EFI, Classic 350, and Classic 500 EFI, matching the same shock assembly used during original manufacture 

Built from high‑tensile, corrosion‑resistant stainless steel, this spring delivers reliable performance under daily riding and heavy loads. It helps maintain proper front suspension preload and rebound characteristics, restoring ride quality after worn springs compromise handling. Easy plug‑and‑play replacement with no modification required, this OEM spare is ideal for front fork rebuilds, suspension upgrades, or restoring classic compliance.

Stand out with warranty-backed authenticity and unmatched compatibility precision. Perfect as an OEM replacement or upgrade for riders craving factory‑true ride dynamics and safe, predictable front suspension behavior.

✨ Key Features (Keyword‑Rich Bullets)

• Genuine Royal Enfield part 591512/B – exact match for factory spring

• OEM replacement for Classic 350 & 500 EFI, Bullet 350 & 500 UCE/EFI

• High‑tensile stainless steel, corrosion‑resistant finish

• Precise fitment plug‑and‑play, no modifications

• Restores front preload and damping behavior to OEM spec

• Ideal for retrofit, rebuilds or upgrading worn shock springs

• Direct OEM sourcing, guaranteed authenticity

• Backed by authenticity assurance from Under The Hood

🧩 Compatibility & Variants

Compatible Models (Detailed Fitment):

• Classic 350 (EFI, UCE engines)

• Classic 500 (EFI, UCE engines)

• Bullet 350 UCE / EFI

• Bullet 500 UCE / EFI
  
  

Available Variants:

• Single Unit (one main spring) – for one fork side

• (No LH/RH or color variants; spring design is symmetrical OEM)

❓ FAQs (Keyword‑Rich)

1. Is 591512/B Main Spring compatible with Royal Enfield Classic 350 UCE (post‑2017)?
   – Yes, it is OEM‑spec for Classic 350 EFI/UCE models, as specified in Royal Enfield parts list.

2. How do I install the 591512/B Main Spring?
   – Disassemble your front fork, replace the old main spring with part 591512/B, and reassemble using standard torque settings—no modifications needed.

3. OEM vs aftermarket: why choose 591512/B?
   – This is a genuine Royal Enfield factory part—guaranteed fit, height, and spring rate—unlike generic aftermarket springs with inconsistent specs.

4. Does the package include both springs or just one?
   – This listing is for a single main spring assembly. Purchase two units for both front forks.

5. How do I know when to replace my main spring?
   – Signs include saggy suspension, inconsistent ride height, oil leaks due to poor preload, or uneven fork travel. Replacing restores ride quality and safety.