Dyna Mono/ R/Hlr Hd Spring 230mm/40.35 X 127
Dyna Mono/ R/Hlr Hd Spring 230mm/40.35 X 127
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HardDrive remote reservoir rear shocks by RacingBros' feature full adjustability with preload, compression and rebound adjusters to easily adapt to all riding styles and conditions. Whether you choose stock 12.5" length for your Dyna or Sportster, or you want the tall 14" curb hopper club style look, these performance shocks with race proven "Speed Adaptive Valving" will provide you with the ultimate ride.
Features:
- Speed Adaptive Valving (SAV)
- Internal Floating Piston (IFP) stabilizes damping performance
- One-Piece damping body construction forged from A7075 aluminum
- Easy set up spring preload cap, no special tool needed
- Rebound adjustable version available
- Available in 12", 12.5" or 13" lengths
- Heavy Duty spring rate recommended for riders over 200 lbs or frequent 2-up riding
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

