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Description

AST Weld-in Roll Cage BMW E91 Touring V4 NASCAR door

The AST Weld-in Roll Cage BMW E91 Touring V4 NASCAR Door Bars is a full roll cage for the BMW 3 Series E91 with 5-door Touring bodywork. This Weld-in E91 Touring V4 NASCAR has the V4 bar set and 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 drift and track cars where side contact is not unusual.

Key benefits

• Full roll cage with NASCAR door bars: several curved tubes in the door instead of the standard door bar.
• V4 base with door protection, an extra diagonal brace and a harness bar.
• Eight welded mounting points directly on the bodyshell.
• E355 steel: 45 mm main hoop, 40 mm for the rest of the structure.
• Gussets and reinforcement plates in 3 mm steel, made to measure for this car.
• Designed from a laser scan of the five-door Touring bodyshell.
• Unpainted weld-in kit with mounting hardware, documentation and a sticker set.

Suitable for

BMW 3 Series E91, 5-door Touring

• BMW 3 Series E91 Touring, five-door bodywork
• Type: full roll cage, version V4 with NASCAR door bars
• Drifting, track use and rallying

Technical specifications

• Manufacturer: AST Roll Cages
• Sunroof: for roofs without a sunroof
• Headlining: for roofs without headlining
• Rear anchorage: in the rear suspension area
• Rear structure layout: V design
• Manufacturer part number: CMBN04053
• 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
• Door protection: NASCAR door bars, several curved tubes in the door instead of the standard door bar
• 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. The structure is fully welded to the bodyshell and cannot be removed afterwards, so have this done by an experienced workshop.

Several curved tubes in the door instead of a single door bar: that is the difference between the NASCAR version and the standard V4.

Why choose this Weld-in E91 Touring V4 NASCAR roll cage?

This Weld-in E91 Touring V4 NASCAR is the one to choose if you want a stronger door area than the standard door bar provides. The rest of the structure follows the V4, with eight welded mounting points and the full diagonal brace and harness bar. AST digitises the bodyshell with laser scanners and designs the cage in 3D, so that it fits your car exactly.

Frequently asked questions

What are NASCAR door bars?

In this version, several curved tubes sit in the door instead of the standard door bar.

Is this the same cage as the regular V4?

The structure follows the V4 bar set with eight welded mounting points. The difference lies in the door, where several curved tubes replace the standard door bar.

What is included?

The weld-in kit with gussets, reinforcement plates, bolts, washers and nuts, 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.