B-G Racing String Line Kit

You're not buying string lines. You're buying lap time.

Most club racers focus on power, tyres, and aero. But the fastest and cheapest performance upgrade is one most drivers overlook: correct four-wheel alignment. A misaligned race car scrubs tyre life, blunts turn-in response, induces understeer under braking, and costs lap time on every single corner — every single lap.

Does the price seem high? Consider this:

A poor alignment destroys tyres. A single set of race tyres costs $1,200–$2,000. One alignment correction with the BGR200 can pay for the kit entirely. After that, every alignment check is free — for the life of the tool. Professional race engineers consider string lines essential equipment, not optional.

The B-G Racing String Line Kit BGR200 is the professional standard for four-wheel alignment without an expensive commercial alignment machine. It's the exact methodology used by professional race engineers at Bathurst, Barcelona, Porsche Carrera Cup, and championship-level programs across Australasia — and now it's available to club racers and track day drivers in New Zealand and Australia.

"The exact alignment method used by professional race engineer Aaron Harris across championship-level motorsport programs — including the Barcelona 24 Hour (1st in Class, 2013) and multiple Bathurst campaigns."

What Is a String Line Kit?

A string line kit is the most accurate and affordable way to measure and set four-wheel alignment on a race car or performance vehicle — no alignment machine required.

String lines are stretched parallel to the vehicle's centreline at wheel height, creating a precise reference datum. From this datum you can measure and adjust:

• Toe — front and rear, individual wheel and total
• Thrust angle — ensures the car tracks straight under acceleration and braking
• Four-wheel alignment — front-to-rear relationship across all four corners
• Symmetry — confirms the car is geometrically square

The B-G Racing BGR200 uses machined grooves in the aluminium stringing bars to ensure the string locates consistently every time — giving repeatable, reliable results that a tape measure and string reel cannot match.

Watch: How To Align Your Car Using a String Line Kit

See exactly how a string line kit works in practice — from setup to final measurement:

String Lines vs Laser Alignment — Which Is Better for Race Cars?

Both tools measure wheel alignment, but they work very differently and suit different use cases. Here's how they compare for race car use:

Verdict: For race car use, string lines are the professional standard because they measure the relationship between all four wheels simultaneously. A laser gauge can be a useful quick-check tool, but it cannot replicate the four-wheel datum that string lines provide. Professional race engineers across Australasia use string lines as their primary alignment methodology — laser gauges as a secondary check at best.

Who Is the String Line Kit For?

• Circuit racers — set alignment between sessions without a workshop rig
• Endurance and long-distance teams — MEGA Race, Bathurst 12 Hour, Lemons, 24-hour events
• Rally teams and service crews — fast, accurate alignment in service parks
• Track day drivers — eliminate guesswork, maximise tyre life and performance
• Performance workshops — professional-grade results without alignment machine investment
• Club racers — set your car up correctly at home before every event

The Complete Race Alignment System

Professional teams rarely use string lines in isolation. The full setup system looks like this:

• B-G Racing String Line Kit BGR200 — the foundation. Four-wheel alignment reference.
• B-G Racing Billet Digital Camber/Castor Gauge — measure and set camber and castor at each corner while string lines are in place.
• B-G Racing Pro Hub Stands — eliminate tyre and wheel variable for maximum accuracy. Most significant single upgrade to string line accuracy.
• B-G Racing Ez Sweep Castor Slip Plates — allow castor measurement without moving the car off its setup position.
• B-G Steering Wheel Lock Tool — locks the steering at dead centre during alignment. Essential for accurate toe measurement.

A complete alignment package built around the BGR200 gives you professional-level setup capability for a fraction of the cost of a commercial alignment rig.

Key Features — B-G Racing String Line Kit BGR200

• Four aluminium stringing bars with machined grooves — string locates precisely for accurate, repeatable positioning every time
• Fully adjustable frames — fits a wide range of vehicle widths and configurations
• Three tube lengths — joinable with four tube connectors for maximum flexibility
• Three types of interchangeable hooking feet — including double-sided foot for additional attachment options
• Two extension bars — accommodates cars of different widths
• Four powder-coated boss units — fully adjustable for various vehicles and applications
• String line reels included — easy application and storage
• Compatible with B-G Hub Stands, Clubman Race Scales, and Levelling Trays for a complete setup solution

Materials

• Boss units: High-grade mild steel, silver-grey powder-coated
• Hooking feet: High-grade mild steel, rubber-coated
• Tubes: Silver zinc-plated, various lengths
• String bars: Aluminium, bright silver anodised

Why Buy From Harris Race Radios?

Harris Race Radios is the B-G Racing supplier with NZ stock and shipping available to Australia for B-G Racing — not a grey-market reseller, not a general sports retailer. Every B-G Racing product is personally selected, used, and recommended by our team:

• Aaron Harris — professional race driver and race engineer. Barcelona 24 Hour 1st in Class (2013). Bathurst 1000 & 12 Hour competitor. BMW Race Driver Series Champion. Race engineer for Earl Bamber Motorsport, Porsche Carrera Cup Australia, Asia-Pacific & NZ, Toyota Gazoo Racing NZ, Matt Stone Racing (V8 Supercars), and TekworkX. Aaron uses B-G Racing string lines at professional motorsport level.
• Rex Harris — qualified Radio Telecommunications Engineer and approved Radio Certifier for New Zealand (RSM ARC127) and Australia (ACMA). 50+ years in motorsport engineering.

Contact Aaron directly for advice on the right alignment setup for your car, discipline, and goals: aaron@harriscomms.co.nz | +64 27 449 9654

Frequently Asked Questions

What is a string line kit used for?
A string line kit is used to measure and set four-wheel alignment on a race car or performance vehicle without needing a commercial alignment machine. String lines are stretched parallel to the vehicle's centreline at wheel height, creating a reference datum for measuring toe, thrust angle, and overall four-wheel alignment.

Does wheel alignment make a race car faster?
Yes — significantly. Correct alignment ensures your tyres are working at their optimal contact patch, reduces tyre scrub, improves turn-in response, and maximises traction under braking and acceleration. Most club racers find meaningful lap time gains from a proper alignment correction alone, before any mechanical changes.

How do string lines work for wheel alignment?
String lines are stretched parallel to the vehicle's centreline at wheel height, creating a precise reference datum. The B-G Racing BGR200 uses machined grooves in the aluminium stringing bars to ensure the string locates consistently, giving repeatable results. From this datum you measure toe, thrust angle, and four-wheel symmetry at each corner.

Do I need hub stands to use string lines?
No — string lines can be used with wheels and tyres fitted. However, combining string lines with B-G Racing Hub Stands gives the most accurate and repeatable results by eliminating tyre and wheel variation from your measurements. Hub stands are the single biggest accuracy upgrade to any string line setup.

String lines vs laser alignment — which is better for race cars?
For race car use, string lines are the professional standard. Laser gauges measure individual wheel angles in isolation. String lines measure the relationship between all four wheels simultaneously, giving you thrust angle, toe, and four-wheel geometry in a single setup. Professional race engineers across Australasia use string lines as their primary alignment tool.

What other tools do I need alongside string lines?
The professional setup system pairs the String Line Kit with a Digital Camber/Castor Gauge, Pro Hub Stands, Castor Slip Plates, and a Steering Wheel Lock Tool. Together these give you complete four-wheel alignment capability at professional level.

Is a carry bag available?
Yes. A black nylon carry bag (BGR203) is available separately — see the B-G Racing String Line Kit Carry Bag.

Is this a genuine B-G Racing product available in NZ and Australia?
Yes. Harris Race Radios is the B-G Racing supplier with NZ stock and shipping available to Australia for B-G Racing. Every product is genuine factory stock sourced directly through B-G Racing's supply chain. Note: this item is bulky and heavy — contact us for a freight quote before ordering.

Can I get expert advice before buying?
Yes. Aaron Harris is a professional race engineer who uses B-G Racing string lines at championship motorsport level. Contact Aaron at aaron@harriscomms.co.nz or +64 27 449 9654 for advice tailored to your car, racing type, and setup goals.