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Description

AST Weld-in Roll Cage BMW E87 V4 NASCAR door

The AST Weld-in Roll Cage BMW E87 V4 NASCAR Door Bars is a full roll cage for the BMW 1 Series E87 with five-door hatchback bodywork. This Weld-in E87 V4 NASCAR builds on the door-bar specification and adds an extra diagonal bar and a harness bar, while both doors are fitted with several curved NASCAR tubes.

The cage is designed and built by AST Roll Cages in Spain, for drivers who use their E87 at drift events, track days and club competitions and want to build without compromise.

Key benefits

• Eight welded mounting points connect the structure directly to the bodyshell, so that cage and car form a single unit.
• NASCAR door bars replace the straight door bar with several curved tubes in the door.
• Side protection in the area where a drift car is hit most often.
• More room to get in because the curved tubes sit closer to the door.
• Harness bar for securing the shoulder straps of your harness firmly to the structure.
• E355 steel with a 45 mm main hoop and a 40 mm secondary structure.
• Tailored to each car thanks to a laser scan of the E87 bodyshell.

Suitable for

BMW 1 Series E87, five-door hatchback

• BMW 1 Series E87 five-door hatchback, model years 2004 to 2011
• Type: weld-in roll cage, version V4 with NASCAR door bars
• Not suitable for the three-door E81 or the E82 coupé: AST designs a separate cage for each body style, and these are not interchangeable
• Drifting, track use and rallying

Technical specifications

• Manufacturer: AST Roll Cages
• Manufacturer part number: CMBN03613
• Sunroof: for roofs without a sunroof
• Headlining: for roofs without headlining
• Rear anchorage: in the rear suspension area
• Rear structure layout: V 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

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. Have the welding done by an experienced structural welder: the structure becomes a permanent part of the car and cannot be removed afterwards.

The V4 bar package with NASCAR doors gives your E87 competition-level rigidity and side protection without making it a struggle to get in and out.

Why choose this Weld-in E87 V4 NASCAR roll cage?

A welded-in cage is stiffer than a bolted version because the forces are distributed into the bodyshell through eight welded mounting points instead of via foot plates and bolts. If you also opt for the V4 version, you get not only the door bars but also the diagonal that braces the rear against torsion and the harness bar for mounting your harness. The NASCAR doors make this package the logical choice for anyone who gets in and out a lot during a drift day.

Frequently asked questions

Does this cage also fit a BMW E81 or E82?

No. This design belongs to the five-door E87. The three-door E81 and the E82 coupé have their own bodyshell, and AST designs a separate cage for each; the versions are not interchangeable.

Is this roll cage FIA-homologated?

AST Roll Cages does not specify a homologation number for this item. The cage is intended for track and competition use; always check the regulations of your own federation or organiser before you enter.

What exactly will I receive?

You receive the Weld-in E87 V4 NASCAR as an unpainted weld-in kit with gussets, reinforcement plates, mounting hardware, documentation, fitting instructions and a sticker set.

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.