Radium Modular Rear Clam Kit — Lotus Elise 2ZZ-GE (2005+)

This kit is designed to make removal of the 2005+ Lotus Elise rear clamshell quick and easy. When combined with a few simple modifications detailed in the included instructions, clamshell removal is reduced to under 10 minutes — making engine service straightforward and significantly reducing labour costs for repair work.

Part of the modification process involves separating the deck lid hinge mounting points from the firewall. The included billet aluminium hinge brace restores structural integrity to the hinge support member after this modification. Factory steel body shims are replaced with laser-cut aluminium Radium shims that bolt permanently in place using stainless steel countersink hardware — no more tape, no more lost shims.

The billet spacers are anodized black and replace the factory steel roll of body shim washers. Body shim spacers are anodized green. The billet aluminium clam hinge brace is available in three finishes: Titanium Silver Nickel-Plated, Bright Dip Black Anodized, and Radium Green Anodized.

Suits: Lotus Elise 2ZZ-GE (2005+)

Kit Includes:

• Billet aluminium decklid hinge brace (choice of 3 finishes)
• Laser-cut black anodized aluminium body shim pads — 73% lighter than stock (x4)
• Green anodized aluminium body shim spacers (x4)
• Pre-cut super adhesive nylon hook and loop fasteners (2 sets)
• Stainless steel hardware
• Detailed installation instructions

Available Part Numbers:

• 20-0051-01 — Modular Rear Clam Kit, Lotus Elise 2ZZ-GE (2005+)

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ CNC-machined and laser-cut billet aluminium components for precision fit and long-term durability
• ✅ Trusted by tuners and race teams running high-performance Lotus builds worldwide
• ✅ Reduces rear clamshell removal to under 10 minutes — no cutting, drilling, or fabrication required
• ✅ 73% lighter than OEM steel shims — available in multiple anodized finishes