INEOS Grenadier DuroSpring Bump Stop and Extensions, Rear Upper
Product ID
8211
Minimize harsh impacts when overlanding your Ineos Grenadier suspension with MetalCloak's Rear DurosSprings and Bump Stop Extension.
Features Includes:- Fits Ineos Grenadier
- 2 Upper Rear DuroSprings
- 2 Upper Rear Bump Stop Extensions
- Superior Performance Over Factory Bump Stops
- Micro-cellular Properties for Dampening
- Increased Comfort and Control
- No Maintenance
- Easy to Install
Each kit also includes MetalCloak’s DuroSpring™ replacement bump stops, providing a softer, controlled stopping point when reaching the limits of compression that enhances ride quality and durability both on and off-road.
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Price As Configured:
$149.00
VIDEOS
MetalCloak's Ineos Grenadier Suspension.
Who Is MetalCloak?
MetalCloak creates Game-Changing Products for the Off Road Enthusiast.
DuroSpring Replacement Bump Stops
DuroSprings offer silent and supple control, absorbing compression energy and slowly releasing it with a dampened return.
What is Corner Travel Index?
Since 2014 MetalCloak has tested thousands and thousands of rigs at events all across the county collecting specs on the build and cataloging the results. The data collected allows us to make our own products better.
FMVSS 126 Compliant
MetalCloak not only has the best off road flex, but we are also Federal Motor Vehicle Safety Standard 126 certified and compliant. No other company can match our on- and off-road performance.
THE TECH
Grenadier Bump Stop Extension
The MetalCloak Rear Bump Stop Extensions for the Ineos Grenadier are engineered to perfectly to work with the RockSport Black shocks. Precision machined from durable Delrin, these extensions drop the bump stop 2” to maintain proper up-travel limits when running longer shocks and ensure maximum use of the allowable travel.

DuroSpring Replacement Bump Stops

Simply install MetalCloak DuroSprings into the factory jounce locations and enjoy the extra confidence, comfort and control.
- DuroSprings require NO maintenance
- ZERO mechanical sliding parts to bind and seize
- NO fluids to change or gases to charge
Micro-cellular Compression
DuroSprings offer silent and supple control, absorbing compression energy and slowly releasing it with a dampened return providing increased stability and comfort, all while reducing stresses that occur when pushing your vehicles components to the limits (Image shown without coils for maximum possible compression).
What's In The Kit?

- Upper Rear Bump Stop Extensions (2)
- Upper Rear DuroSpring Bump Stops (2)
- All Required Hardware
TECHNICAL SPECIFICATIONS
| Items | Details |
|---|---|
| Compatibility | 2023 - Current Ineos Grenadier |
| DuroSpring Bump Stops | Micro-cellular Urethane |
| Bump Stop Extensions | Delrin |
INSTALLATION
| Installation Difficulty | Easy |
| Body Modification | None |
| Time to Install | 30 Minutes |
| Installation Instructions | Click Here to see a full list of MetalCloak Installation Instructions. |
CUSTOMER QUESTIONS
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