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Description

AST Weld-in Roll Cage BMW E21 Coupé V2

The AST Weld-in Roll Cage BMW E21 Coupé V2 is a full roll cage for the BMW 3 Series E21 with 2-door coupé bodywork. This Weld-in E21 Coupé V2 takes everything from the V1 and adds front reinforcement bars running to the bulkhead.

The cage is designed and built by AST Roll Cages in Spain, for drivers who are looking for torsional rigidity as well as occupant protection and want their E21 to turn in more sharply.

Key benefits

• Front reinforcement bars to the bulkhead tie the cage to the front end and stiffen the middle section of the bodyshell.
• Noticeably more rigid chassis translates into sharper steering response on the circuit and the drift track.
• Eight welded mounting points provide a permanent connection to the sheet metal of the E21.
• E355 steel, 45 mm for the main hoop and 40 mm for the rest of the structure.
• Gussets and reinforcement plates come as standard in the weld-in kit.
• Custom-made via laser scan, so the extra bars run neatly along the bulkhead.
• Supplied unpainted and therefore ready straight away for welding and finishing work.

Suitable for

BMW 3 Series E21, 2-door Coupé

• BMW 3 Series E21 Coupé, years of manufacture 1975 to 1983
• Type: weld-in roll cage, version V2
• Drifting, track use and rallying

Technical specifications

• Manufacturer: AST Roll Cages
• Manufacturer part number: CMBN06868
• Sunroof: for roofs without a sunroof
• Headlining: for roofs without headlining
• Rear anchorage: in the rear suspension area
• Rear structure layout: X design
• Type: full roll cage, weld-in (permanent)
• 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: 8 welded mounting points on the bodyshell
• Weight: 71 kg (manufacturer’s figure)
• Finish: unpainted weld-in kit
• Included: weld-in kit, gussets, reinforcement plates, bolts, washers and nuts, documentation, fitting instructions and sticker set
• FIA homologation numbers: A-5623, A-5620, A-5100, A-5093 and A-5014 (as stated by AST Roll Cages, for the BMW 316, 320, 320i, 320/6 and 323i)

Fitting and delivery

The cage is built to order; the standard delivery time is 15 to 35 working days. AST digitises the bodyshell with laser scanners and designs the cage in 3D, so that it fits your car exactly. Bear in mind that the front bars run past the dashboard area: plan the removal of the trim and dashboard before the welder starts.

With the front bars to the bulkhead, the E21 becomes not only safer but also noticeably more rigid.

Why choose this Weld-in E21 Coupé V2 roll cage?

An E21 from the seventies is light, but not particularly rigid. By extending the cage to the bulkhead, you tie the safety structure to the front section of the car. You pay a little more than for the V1 and get handling in return that you feel on every lap.

Frequently asked questions

What is the difference from the V1?

The V1 is the base cage with main hoop and braces. The V2 adds the front reinforcement bars to the bulkhead, which gives extra rigidity at the front.

Will the cage fit my E21 exactly?

AST scans the bodyshell with laser scanners and designs the cage in 3D based on that data, so the tubes follow the shape of the car rather than the other way round.

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.