An automotive suspension aid designed to support suspension and reduce rear sag when towing, the BITS4REASONS E TECH Coil Spring Aid. Gain confidence when hitching trailers or carrying heavy loads thanks to steadier hitch height and improved stability. Is the fit right for your vehicle's spring gap and towing needs?
⚡ At a Glance
- • Load Support: Maintains hitch height and prevents springs bottoming out under heavy load
- • Best for: Drivers towing trailers, caravans or regularly carrying heavy loads in cars, light commercials and 4x4s
- • Not ideal for: Vehicles with coil spring gaps outside 18–25mm or applications needing custom suspension modification
High-density super strength rubber inserts into the coil spring gap to support suspension under load. Designed to improve towing stability and reduce the risk of springs bottoming out.
Reduced rear sag – thanks to high-density rubber spring aid
Insertion into the coil spring gap spreads load and prevents the spring from compressing fully under heavy weight. The material resists compression where the spring would otherwise bottom out.
Keeps the rear end nearer to level when towing or carrying heavy loads, preserving hitch height and reducing visible sag.
Improved towing stability – with assistance for weight transfer
High-density rubber assists with weight transfer during acceleration and braking by adding support at the spring seat. That supplementary support helps keep axle and chassis geometry more consistent under load.
Provides steadier handling when pulling trailers or laden, making acceleration and braking feel more controlled.
Straightforward fitment – thanks to a defined 18–25mm gap specification
Designed to sit inside coil spring gaps measuring between 18 and 25mm, with measurement guidance provided in the product imagery. Supplied as a pair to allow matching support on both sides.
Quick to check for compatibility and simple to insert when the correct gap is confirmed, giving even support across the rear axle.
✨ The 4 Key Reasons for BITS4REASONS E TECH Coil Spring Aid
High-density rubber – Absorbs load and resists deformation for durable support under towing
Easy fit into spring gap – Quick insertion into 18–25mm gaps using simple measurement steps
Maintains ride quality – No noticeable change to ride comfort when vehicle is loaded
Pair kit for even support – Fits both sides to balance load and reduce sag
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Brand: BITS4REASONS
- Model: E TECH Coil Spring Aid
- Product ID: B087YL3VVC
- Fitment: Fits into spring gap 18–25mm
❓ Frequently Asked Questions
Q: Will these eliminate rear sag when my vehicle is loaded?
A: User feedback reports elimination of rear sag when vehicles are fully loaded, indicating effective levelling for compatible spring gaps.
Q: Will they fit my car or 4x4?
A: Designed for cars, light commercials and 4x4s but must fit a spring gap of 18–25mm; measurement guidance is provided in the product images to confirm compatibility.
Q: Do they change ride quality or feel flimsy?
A: Users report no noticeable change to ride quality, and the high-density super strength rubber construction supports towing stability and durability.
🏆 Our Verdict
Well suited to drivers who tow trailers, caravans or frequently carry heavy loads and can confirm a compatible 18–25mm coil spring gap. High-density rubber construction delivers reliable levelling and helps prevent springs bottoming out while assisting weight transfer during acceleration and braking. Durable materials and simple fitment make the pair a practical long-term upgrade for routine towing and load-carrying duties.
