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Description

AST Removable Half Roll Cage BMW E21 Coupé V2

The AST Removable Half Roll Cage BMW E21 Coupé V2 is a half roll cage for the BMW 3 Series E21 with 2-door coupé bodywork. This Removable half cage E21 Coupé V2 is the highest specification among the removable versions for this chassis: a more extensive structure around the rear compartment that can still be removed via connecting sleeves.

The cage is designed and built by AST Roll Cages in Spain, for drivers who want to get the most out of a half cage while keeping the freedom to strip their E21 back out again.

Key benefits

• Most extensive removable version AST builds for the E21 Coupé.
• Removable via connecting sleeves, without having to touch the welded foot plates.
• Half roll cage around the rear compartment; the front seats remain unobstructed.
• Four bolting points on four foot plates made of 3 mm steel, welded to the bodyshell.
• Stated weight of 71 kg, the same as the lower-spec removable version.
• E355 steel: main hoop 45 mm, rest of the structure 40 mm.
• Complete package with connecting sleeves, reinforcement plates, mounting hardware, documentation, instructions and a sticker set.

Suitable for

BMW 3 Series E21, 2-door Coupé

• BMW 3 Series E21 (1975 to 1983), 2-door Coupé
• Type: half roll cage, version V2, removable via connecting sleeves
• Drifting, track use and rallying

Technical specifications

• Manufacturer: AST Roll Cages
• Manufacturer part number: CMBN06856
• Sunroof: for roofs without a sunroof
• Headlining: for roofs without headlining
• Rear anchorage: in the rear suspension area
• Rear structure layout: X design
• Type: half roll cage, removable via connecting sleeves
• Main hoop: E355 steel, 45 mm diameter
• Secondary structure: E355 steel, 40 mm diameter
• Foot plates: 3 mm steel, custom-designed for each car
• Mounting: 4 bolting points on 4 foot plates welded to the bodyshell
• Coverage: rear compartment of the car only
• Weight: 71 kg (manufacturer’s figure)
• Finish: welded and unpainted, in sections via connecting sleeves
• Included: welded structure, connecting sleeves, reinforcement plates, bolts, washers, nuts, documentation, fitting instructions and sticker set

Fitting and delivery

The cage is built to order; the standard delivery time is 15 to 35 working days. During fitting, take the time to align the connecting sleeves properly, as that is where the quality of a removable cage lies. The four foot plates are welded to the bodyshell and the structure is bolted onto them. AST digitises the bodyshell with laser scanners and designs the cage in 3D so that it fits your car exactly. This cage is intended for track and competition use; check the regulations of your own sporting organisation beforehand.

The most substantial half cage AST makes for the E21 Coupé, and it still comes out with a spanner.

Why choose this Removable Half Cage E21 Coupé V2?

This version combines two things that usually rule each other out: the most extensive half structure and the ability to dismantle everything again. For a classic E21 that needs to be at home both on track and at events, that is a welcome result. The extra cost over the lower-spec version pays for the additional structure, not for extra weight, as AST quotes 71 kg for both.

Frequently asked questions

What is the difference from the removable version V1?

This Removable half cage E21 Coupé V2 is the higher specification of the two; the mounting with four bolting points on welded foot plates and the stated weight of 71 kg are the same for both.

How often can I remove the cage and refit it?

The connecting sleeves are designed to be undone and tightened repeatedly. Each time you refit the cage, check the bolts and the condition of the sleeves before you go out on track.

Does it come with a homologation number?

AST does not list a homologation number for this item. The cage is intended for track and competition use; check with your own motorsport body which requirements apply in your class.

What is the delivery time?

The standard delivery time for this roll cage is 15 to 35 working days.

Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.