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Description

AST Weld-in Roll Cage BMW F87 Coupé V4 NASCAR door

The AST Weld-in Roll Cage BMW F87 Coupé V4 NASCAR Door Bars is a full roll cage for the BMW 2 Series F87 with 2-door coupé bodywork. This Weld-in F87 Coupé V4 NASCAR has the same eight welded mounting points and the same V4 bar package as the standard version, but with several curved tubes in the door instead of the single door bar.

The cage is designed and built by AST Roll Cages in Spain, for drivers who want maximum side protection in the M2 without having to climb over a thick door bar every time.

Key benefits

• NASCAR door construction with several curved tubes in the door instead of the standard door bar.
• More side protection, as the force is absorbed by several tubes.
• More room to get in, as the tubes are bent outwards and leave the opening clearer.
• Eight welded mounting points that permanently connect the cage to the bodyshell.
• Full V4 specification with main hoop and braces, front bars to the bulkhead, extra diagonal and harness bar.
• E355 tubing, main hoop 45 mm and the rest of the structure 40 mm.
• Complete weld-in kit with gussets, reinforcement plates, mounting hardware, documentation, fitting instructions and a sticker set.

Suitable for

BMW 2 Series F87, 2-door coupé

• BMW M2 (F87), the compact rear-wheel-drive two-door from 2016 to 2021
• Type: full weld-in roll cage, version V4 with NASCAR door bars
• Coupé only; AST does not offer a convertible version for this model
• Not interchangeable with its successor, the G87, which has its own cage
• Drifting, track use and rallying

Technical specifications

• Manufacturer: AST Roll Cages
• Manufacturer part number: CMBN03599
• 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 and reinforcement 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. Bear in mind that the door cards and the door internals have to be modified to make room for the curved tubes. AST digitises the bodyshell with laser scanners and designs the cage in 3D, so that it fits your car exactly.

Curved door tubes instead of a single bar: more protection alongside you, yet easier to get in.

Why choose this Weld-in F87 Coupé V4 NASCAR roll cage?

In drifting, an impact rarely comes head-on. The side takes the hit, and that is exactly where NASCAR door bars beat a single bar. In the compact F87, every centimetre of entry space counts as well, especially with a bucket seat and a harness. This version combines those two advantages with the full V4 bar package.

Frequently asked questions

What exactly are NASCAR door bars?

Instead of one straight door bar, there are several curved tubes in the door. They absorb a side impact across several points while leaving more room to get in and out.

Can I keep the original door cards?

Usually not without modification. The tubes of the Weld-in F87 Coupé V4 NASCAR extend into the door, so the door internals have to be modified to suit.

Does this cage fit an M2 convertible or a G87?

No. This is a cage for the two-door F87 coupé. AST does not offer a convertible version for this model, and its successor, the G87, has its own cage, which is not interchangeable.

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.