Traxxas Shim Set Suspension Tuning Kit 3x7x1mm 3x6x0.5mm 3x7x2mm TRX5529

Overview

The Traxxas Shim Set TRX5529 is an essential maintenance and tuning component for serious RC enthusiasts who demand precision and reliability from their RC car UK setups. This comprehensive spare parts kit includes a carefully selected range of shims and hollow balls designed to optimise suspension geometry, bearing clearances, and drivetrain performance across multiple Traxxas models. Whether you're fine-tuning a brushless RC short course truck, adjusting a ready to run RC crawler, or maintaining a high-performance rally car, this shim set gives you the tools to achieve perfect alignment and optimal handling characteristics.

Built by Traxxas, the world's leading manufacturer of high-performance RC vehicles, this genuine spare part meets the exacting standards that professional racers and weekend bashers alike have come to expect. The TRX5529 is compatible with an impressive range of Traxxas models including the Slash Ultimate 4x4, TRX-4 Sport, TRX-4 Defender, Slash VXL, Slash HD XL-5, and Ford Fiesta ST Rally vehicles. If you own any modern Traxxas RC car UK model, you'll want to keep this shim set in your pit bag for emergency repairs, seasonal maintenance, or competitive tuning adjustments.

Proper suspension geometry is absolutely critical to RC car performance, and shims are the unsung heroes that allow you to dial in perfect steering geometry, adjust differential preload, and compensate for wear in drivetrain components. This genuine Traxxas spare parts kit ensures you have exactly the right components on hand whenever you need them, without the frustration of ordering multiple items or settling for inferior aftermarket alternatives.

Key Features

• Comprehensive shim selection — The kit includes multiple sizes (3x7x1mm, 3x6x0.5mm, and 3x7x2mm) with multiple pieces of each, allowing you to fine-tune suspension geometry, adjust bearing preload, and dial in steering response precisely to your driving style and track conditions.
• Genuine Traxxas manufacture — Every component in this set is produced to Traxxas's demanding quality standards, ensuring perfect tolerances and reliable performance in the most demanding racing and bashing applications.
• Hollow captured balls included — The four hollow captured balls provide flexible options for drivetrain tuning, allowing you to adjust differential behaviour and optimise acceleration characteristics on brushless RC short course trucks and other high-performance models.
• Multi-model compatibility — This shim set works across a wide range of current and recent Traxxas vehicles, making it one of the most versatile spare parts you can keep in your workshop for quick repairs and competitive tuning.
• Professional-grade materials — Each shim is manufactured from precision materials that withstand repeated installation and removal cycles without warping, cracking, or losing dimensional accuracy, crucial for maintaining consistent handling over many seasons of use.
• Essential for maintenance — Regular shim inspection and replacement is part of proper RC car UK maintenance protocol, and this genuine Traxxas kit ensures you never find yourself without the right components when your vehicle needs attention.

Technical Performance

Suspension geometry and drivetrain tuning represent the frontier of RC car performance optimisation, and the Traxxas Shim Set TRX5529 provides the precise mechanical tools to explore this frontier. The shim collection includes three distinct thicknesses: the 3x7x1mm shims (2 pieces) for fine adjustments and minor corrections, the ultra-precise 3x6x0.5mm shims (4 pieces) for micro-adjustments where every tenth of a millimetre matters, and the more substantial 3x7x2mm shims (2 pieces) for significant geometry changes. The four hollow captured balls expand your tuning options further, allowing you to modify differential preload and drivetrain behaviour without changing other suspension components. These components are essential for owners of brushless RC short course trucks like the Slash VXL and Slash Ultimate 4x4, RC crawlers like the TRX-4 and TRX-4 Defender range, and rally cars like the Ford Fiesta ST Rally VXL and BL-2S models. Precision engineering in RC vehicle design means that suspension geometry is measured in millimetres and fractions thereof; these shims let you dial in perfect steering response, adjust caster and camber compensation, and optimise differential preload. Whether you're running on carpet, dirt, or grass, competing at the track or bashing in the park, these genuine Traxxas components ensure your suspension remains perfectly tuned throughout the season.

What's in the Box

• Shims 3x7x1mm — 2 pieces
• Shims 3x6x0.5mm — 4 pieces
• Shims 3x7x2mm — 2 pieces
• Hollow balls, captured — 4 pieces

Frequently Asked Questions

• Which Traxxas models does the TRX5529 shim set fit? — This comprehensive shim set is compatible with a wide range of current and recent Traxxas vehicles including the Ford Fiesta ST Rally VXL, Ford Fiesta ST Rally BL-2S, Slash Ultimate 4x4 VXL, Slash VXL 4x4 RTR, Slash HD XL-5 2WD RTR, TRX-4 2021 Ford Bronco, TRX-4 Defender, and TRX-4 Sport models in all available colours. If you own any modern brushless or electric Traxxas RC car UK, this set is almost certainly compatible with your model.
• Do I need this shim set if I'm a beginner? — If you're just starting with ready to run RC vehicles, you may not need this set immediately. However, as you progress and begin learning about suspension tuning, or if you need to perform maintenance on your vehicle, having genuine Traxxas shims on hand becomes invaluable. Many beginners discover that proper suspension geometry tuning makes an enormous difference in how their RC short course truck or crawler handles, making this set a worthwhile investment relatively early in your RC journey.
• What's the difference between the different shim sizes? — The various thicknesses (0.5mm, 1mm, and 2mm) are designed for different tuning scenarios. The ultra-thin 0.5mm shims allow micro-adjustments when you're dialling in perfect geometry, the 1mm shims provide standard adjustment capability, and the 2mm shims make more significant changes to caster, camber, or differential preload. Having all three sizes means you can make precise adjustments without jumping between geometry settings.
• How do I use hollow captured balls? — The hollow captured balls included in this set are used to adjust differential preload and drivetrain behaviour. By installing them in specific locations within the differential assembly, you can modify how much torque is transferred between wheels during cornering and acceleration, fundamentally changing your vehicle's handling character. Different configurations suit different track conditions and driving styles.
• How often should I replace these shims? — Shims themselves are durable components that don't typically wear out, but they may become bent, warped, or damaged through heavy use or crashes. Keeping spare genuine Traxxas shims ensures you can quickly restore your vehicle to perfect specification after any incident. Many competitive RC racers check and replace worn shims as part of their pre-race maintenance routine.
• Are these shims compatible with aftermarket suspension parts? — These shims are designed specifically for Traxxas vehicles and work with genuine Traxxas suspension components. Whilst some aftermarket parts may be compatible, Traxxas recommends using genuine shims to ensure perfect fitment and avoid suspension geometry errors that could affect handling or cause damage.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Traxxas Shim Set, 3x7x1mm (2 pcs), 3x6x0.5mm (4 pcs), 3x7x2mm (2 pcs) / hollow balls, captuRed (4 pcs) TRX5529 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.