Gyraline. The Portable Wheel Alignment Tool.
The Most Compact, Sensor-Based Alignment Tool for Toe, Camber, & Caster.
Trusted Where It Matters Most
"After a wall tap, you can check alignment in the hot pit in seconds. If toe moved, you'll see it immediately.. no guessing, no waiting. In Formula Drift, speed is everything."
— Josh Stuart
ProSpec Formula Drift Driver
When fractions of a degree determine podium finishes, racers trust Gyraline for track-proven accuracy. Fast setup times, repeatable results, and the confidence to push the limits.
Gyraline G1
Turn your iPhone into a repeatable 4-wheel alignment system. Using our patent-pending Quad-Point Adapter and sensor-fusion software, the G1 delivers race-proven repeatability in a pocket-sized powerhouse.
G1 is Only Compatible with iOS. Need Android Compatibility? Gyraline G2 supports both iOS and Android via USB-C!
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Fast, Repeatable Results: Get consistent toe, camber, and caster readings you can trust—without the guesswork.
Typical repeatability within race-relevant tolerances. -
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Track-Ready Durability: No delicate lasers or strings. Built for the garage and the pits.
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Lifetime License: One-time purchase. No subscriptions. No hidden fees.
⚡ G1 is produced in limited runs. When this batch sells out, lead times increase.
Unbelievably Simple.
Blazingly Fast.
Reference the rear axle (or chassis centerline), then compare all four wheels for fast, repeatable alignment.
“I trust this more than alignment shops—first drive tracked straight.”
— PD, Verified Customer
Industry Recognized
Celebrated by industry leaders and trusted by professionals worldwide.
MOTOR Top 20 Winner
SEMA 2025
SEMA Member
Introducing Gyraline G2
The professional instrument for shops and teams who need repeatable, defensible results.
📱 Works with Android & iOS — Connect any phone via USB-C
Precision Redefined.
We took something great and made it better. By integrating aerospace-grade sensors into the tool, G2 works with any iOS or Android device with USB-C — no more iPhone-only limitation. Multi-sensor measurement improves reference-verified repeatability, creates a faster workflow, and keeps results consistent across your entire team, regardless of their phone preference.
Reference-Grade Repeatability
Integrated sensors measure Toe, Camber, Caster, and Ackermann with reference-verified repeatability you can defend.
Streamlined Workflow
Multi-sensor measurement reduces steps and repeat passes. A few measurements per wheel deliver a complete 4-wheel alignment check with a faster workflow.
Universal Compatibility
Works seamlessly with Android and iOS via USB-C. Firmware updates keep your G2 improving as new features roll out.
Built for shops and teams who need repeatable, defensible results.
Buy G2 for iOS / AndroidTrusted by 20,000+
Enthusiasts love it. Shops use it for quick checks.
"Excellent product. Finally, alignment accuracy I can trust—and I can fine-tune anytime."
"Super impressed. I trust this more than alignment shops—first drive tracked straight."
"After testing on multiple cars, I'm convinced. Hope the team keeps improving—it's powerful."
"Saved me a trip to the alignment shop. I align on my time, when I want."
"We use it for quick checks to decide if a full rack alignment is needed."
"Very easy to use. Replacement was handled immediately—excellent customer service."
"Major upgrade over G1. Delrin quality is excellent—and it's fast to use."
"Loved G1. Even more impressed when my Founders Edition G2 arrived—great for checking alignment."
"Great quality. Wish I'd had this 30 years ago."
Specs in Seconds, Not Hours
Gyraline devices replace the complexity of parallel strings and the cost of shop visits with 20-second digital verification.
Instant Visibility
- ✓ Eliminate the Guesswork: Capture your exact alignment numbers in under 20 seconds. Know immediately if your suspension work or track setup is "within spec."
- ✓ 3D Vector Mapping: Our software creates digital reference planes for each wheel, delivering the same logic used by $40k laser racks, right on your iPhone.
Full Alignment Freedom
- Toe: Individual & Total Toe with Body Centerline Characterization.
- Camber: Precise 4-wheel readings and cross camber calculations.
- Caster: We do the math for you. 60 second caster measurements with a 3 point sweep.
"The G1 gives me the freedom to check my alignment after every track session. It’s the data I need, exactly when I need it."