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Description

AST Weld-in Roll Cage BMW E81 V5 NASCAR door

The AST Weld-in Roll Cage BMW E81 V5 NASCAR Door Bars is a full roll cage for the BMW 1 Series E81 with three-door hatchback bodywork. This weld-in E81 V5 NASCAR combines the complete set of bars of the V5 with NASCAR door bars: several curved tubes in the door instead of the standard door bar.

The cage is designed and built by AST Roll Cages in Spain for drivers who are turning their E81 into a fully fledged competition car and don’t want to compromise on either specification or side protection.

Key benefits

• Highest specification level: the complete set of bars of the V5, the heaviest specification AST designs for this model.
• NASCAR door bars: several curved tubes per door instead of a single straight door bar.
• Side protection plus room to get in: the bow in the tubes keeps the door opening usable, even with a harness on.
• Eight welded mounting points: the cage is permanently welded to the bodyshell.
• E355 steel: main hoop with a diameter of 45 mm, the remaining tubes 40 mm.
• Gussets: supplied with the kit to support the welded mounting points in the bodyshell.
• Supplied unpainted: the paintwork is done after welding.

Suitable for

BMW 1 Series E81, three-door hatchback

• BMW 1 Series E81 three-door hatchback, model years 2007 to 2011
• Type: full roll cage, version V5 with NASCAR door bars, weld-in (permanent)
• Drifting, track use and rallying
• Exclusively for the three-door E81. AST designs a separate cage for the E82 coupé and the E87 five-door; this cage does not fit those versions.

Technical specifications

• Manufacturer: AST Roll Cages
• Manufacturer part number: CMBN03609
• 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), with NASCAR door bars
• 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. This is the most extensive package in the range, with the complete set of bars and the curved door tubes, so expect the longest fitting time of all versions. AST digitises the bodyshell with laser scanners and designs the cage in 3D, so that it fits your car exactly.

Everything included: the complete set of bars of the V5 plus curved NASCAR tubes in both doors, welded firmly to the bodyshell of the E81.

Why choose this weld-in E81 V5 NASCAR?

If you are building up an E81 for serious competition work, you want to fit the cage once and then not have to touch it again. This version gives you the highest specification level together with the best side protection AST offers for this model. The cage is intended for track and competition use; always check the regulations of your own organiser before you enter.

Frequently asked questions

How does this differ from the regular V5?

The layout is the same, but the weld-in E81 V5 NASCAR has several curved tubes in the door instead of the standard door bar. This gives more side protection and leaves more room to get in.

What is included?

You receive the weld-in kit with gussets and reinforcement plates, the bolts, washers and nuts, the documentation, fitting instructions and a sticker set, all unpainted.

What is the delivery time?

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