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Description

AST Multipoint Weld-in Roll Cage Nissan Silvia S15 Coupé V4 NASCAR door

The Multipoint S15 V4 NASCAR is a full roll cage from AST Roll Cages for the two-door Nissan Silvia S15 and the most substantial option in the range for this car. Ten welded mounting points, NASCAR door bars, an extra diagonal in the main hoop and a harness bar behind the seats.

This version combines everything a drift car needs. Door protection comes from several curved tubes per door, which spread a side impact over a large area. The harness bar ensures your shoulder straps are anchored at the correct angle. And the ten-point anchorage spreads the forces along the full length of the chassis.

The rear structure has a V design. The cage is supplied unpainted.

Key benefits

• Most substantial version for the S15, ten welded mounting points plus NASCAR door bars
• NASCAR door bars with several curved tubes per door
• Harness bar behind the seats for the correct belt angle
• Extra diagonal brace in the main hoop
• V design rear structure
• E355 steel, 45 mm main hoop and 40 mm secondary structure
• Custom-made via laser scan of the original bodyshell

Suitable for

Nissan Silvia S15, two-door Coupé

• S15 Spec-R and Spec-S, rear-wheel drive
• Roofs without a sunroof
• Roofs without headlining
• Drifting and competitive track use

Technical specifications

• Manufacturer: AST Roll Cages
• Part number: CMBN03889
• Material: E355 steel
• Main hoop tube diameter: 45 mm
• Secondary structure tube diameter: 40 mm
• Foot and reinforcement plates: 3 mm steel, custom-made for each car
• Mounting: 10 welded mounting points on the bodyshell
• Door design: NASCAR door bars
• Weight: 210 kg
• Finish: unpainted
• Sunroof: for roofs without a sunroof
• Headlining: for roofs without headlining
• Rear anchorage: in the rear suspension area
• Rear structure layout: V design
• Included: weld-in kit, gussets, reinforcement plates, bolts, washers, nuts, documentation, fitting instructions and sticker set

Fitting and delivery

Think this fitting through properly from the start, as there is little room for corrections. The seat position determines the height of the harness bar, and the NASCAR door tubes determine how much shoulder room you are left with. Trial-fit the seats in place before anything is welded in for good. Then: strip the car, take the ten welded mounting points back to bare metal, weld.

Each cage is custom-built after you order. The delivery time is 15 to 35 working days.

The most substantial cage AST designs for the S15: ten welded mounting points, belts where they belong and doors full of steel.

Why choose this Multipoint S15 V4 NASCAR?

This is the point at which the S15 stops being a road car with a cage and becomes a competition car. The combination of ten-point anchorage, harness bar and NASCAR door tubes covers everything that goes wrong in drifting: belts pulling at the wrong angle, a chassis that flexes, and contact from the side. Because AST scans the bodyshell beforehand, all those tubes drop neatly into place and you keep more room than with a structure fitted on the spot.

Frequently asked questions

Is this a half or a full roll cage?

A full roll cage, welded at ten points and extending into the front compartment.

What is the difference from the V3 NASCAR?

On top of that, the Multipoint S15 V4 NASCAR has an extra diagonal brace and a harness bar behind the seats.

Is there anything more substantial for the S15?

No. This is the most substantial roll cage AST supplies for this car.

How much does this roll cage weigh?

According to AST Roll Cages, this item weighs 71 kg.

Is this roll cage homologated?

AST does not list an FIA homologation number for this item. Assume it is intended for track and competition use, and check your own organiser’s regulations beforehand.

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.