Description
AST Removable Half Roll Cage BMW F30 Sedan V2
The AST Removable Half Roll Cage BMW F30 Saloon V2 is a half roll cage for the BMW 3 Series F30 with 4-door saloon bodywork. This removable half cage F30 Saloon V2 retains the main hoop with braces 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 want more torsional rigidity without going straight to a full roll cage.
Key benefits
- Extra front bars: the reinforcement bars running to the bulkhead tie the rear structure through to the front of the interior.
- Noticeably stiffer: this connection makes the chassis more settled than the V1 in fast changes of direction.
- Still removable: the connecting sleeves remain, so the cage comes out again if you want to use the car differently.
- Four welded foot plates: 3 mm steel, custom-designed per car for the F30 saloon.
- E355 tubing: 45 mm main hoop, 40 mm for the rest of the structure.
- Weight 71 kg: manufacturer’s figure from AST for this version.
- Unpainted: ready for you to have it blasted, powder-coated or painted.
- Available for cars with and without a sunroof and with and without headlining – you choose this when ordering
Suitable for
BMW 3 Series F30, 4-door saloon
- BMW 3 Series F30 saloon, built 2012 to 2019
- Type: removable half roll cage, version V2
- Drifting, track use and rallying
Technical specifications
- Manufacturer: AST Roll Cages
- Manufacturer part number: CMBN03041
- Rear anchorage: at the wheel arch
- Rear structure layout: X design
- Type: half roll cage, removable via connecting sleeves
- 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: 4 bolting points on 4 foot plates welded to the bodyshell
- Weight: 71 kg (manufacturer’s figure)
- Finish: welded and unpainted, in sections via connecting sleeves
- Included: welded structure, connecting sleeves, 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. Allow for some extra fitting time compared with the V1, as the front bars have to be neatly fitted along the interior trim. AST digitises the bodyshell with laser scanners and designs the cage in 3D, so that it fits your car exactly.
The V2 stiffens the chassis all the way to the bulkhead and is still a cage you can take out again.
Why choose this removable half cage F30 Sedan V2?
Anyone who is regularly on track will notice that reinforcing the rear alone is not enough. The front bars of the V2 make the difference in how predictably the F30 responds to a quick steering correction. The cage is intended for track and competition use; check the regulations of your own organiser before you enter.
Frequently asked questions
What is the difference from the V1?
The V1 is limited to the main hoop with braces at the rear. This removable half cage F30 Saloon V2 adds front reinforcement bars on top of that, running through to the bulkhead, which makes the car stiffer.
Does the cage really fit my car exactly?
AST scans the bodyshell of the F30 saloon with laser scanners and designs the cage around it in 3D. The foot plates are custom-designed for each car, so nothing has to be ground down when the cage is fitted.
What if my car has a sunroof or headlining?
When ordering, please state whether your car has a sunroof and whether the headlining will stay in place, and AST will tailor the roll cage accordingly.
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.








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